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University of Illinois – Urbana-Champaign
1.
Madison, Anna M.
The role of crowding in parallel search.
Degree: MA, Psychology, 2016, University of Illinois – Urbana-Champaign
URL: http://hdl.handle.net/2142/90853
► Crowding is the deleterious effect of nearby objects on object recognition in the peripheral (Pelli, 2008). In three visual search experiments the contribution of visual…
(more)
▼ Crowding is the deleterious effect of nearby objects on object recognition in the peripheral (Pelli, 2008). In three
visual search experiments the contribution of
visual crowding to reaction time performance in an efficient
search task was evaluated by varying the factors known to affect the strength of crowding: spacing between objects and similarity. Traditionally, pop-out
search is believed to isolate the first stage of
visual processing and has been characterized as producing shallow
search slopes (<10 ms/item), which are independent of set size. Recent results from our lab suggest discrimination pop-out
search has a logarithmic relationship between reaction time and set size, which is modulated by the lure-target similarity (Buetti et al., in press). These results have been interpreted as resulting from the first stage of
visual processing that is exhaustive, unlimited-in-capacity and resolution limited. Items sufficiently dissimilar to the target are rejected by stage-one processing, and items sufficiently similar to the target are inspected with focused attention. Here we ask if the limitation in resolution in stage-one processing is a result of crowding and evaluate the contribution of crowding to our previous logarithmic
search slope findings. In three experiments reaction time performance was compared on two possible display types which differed in the spatial arrangements. The results from three experiments converge on the same pattern of results: reaction times increased logarithmically with set size and were modulated by lure-target similarity for both display types.
Advisors/Committee Members: search?q=%2Bpublisher%3A%22University%20of%20Illinois%26%23160%3B%26%238211%3B%20Urbana-Champaign%22%20%2Bcontributor%3A%28%22Buetti%2C%20Simona%20L%22%29&pagesize-30">Buetti, Simona L (advisor),
search?q=%2Bpublisher%3A%22University%20of%20Illinois%26%23160%3B%26%238211%3B%20Urbana-Champaign%22%20%2Bcontributor%3A%28%22Lleras%2C%20Alejandro%22%29&pagesize-30">Lleras, Alejandro (advisor).
Subjects/Keywords: efficient search; visual search; crowding
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
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to Zotero / EndNote / Reference
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APA (6th Edition):
Madison, A. M. (2016). The role of crowding in parallel search. (Thesis). University of Illinois – Urbana-Champaign. Retrieved from http://hdl.handle.net/2142/90853
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Madison, Anna M. “The role of crowding in parallel search.” 2016. Thesis, University of Illinois – Urbana-Champaign. Accessed February 27, 2021.
http://hdl.handle.net/2142/90853.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Madison, Anna M. “The role of crowding in parallel search.” 2016. Web. 27 Feb 2021.
Vancouver:
Madison AM. The role of crowding in parallel search. [Internet] [Thesis]. University of Illinois – Urbana-Champaign; 2016. [cited 2021 Feb 27].
Available from: http://hdl.handle.net/2142/90853.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Madison AM. The role of crowding in parallel search. [Thesis]. University of Illinois – Urbana-Champaign; 2016. Available from: http://hdl.handle.net/2142/90853
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Queens University
2.
Witherspoon, Richelle.
Effects of Object Function on Visual Search in Real-World Scenes
.
Degree: Psychology, 2012, Queens University
URL: http://hdl.handle.net/1974/7437
► Our everyday interactions with the world are subject to affordance: the interaction that exists naturally between an object and the action possibilities inherent within it.…
(more)
▼ Our everyday interactions with the world are subject to affordance: the interaction that exists naturally between an object and the action possibilities inherent within it. Object affordances result from complex visuomotor interactions and are reflected in many processes, including reaching and grasping behaviours, distance judgments, and object identification. With the present study we extended current research on the use of affordances in visual searches of arrays to investigate whether guidance by affordance occurs in searches of real-world scenes and is the result of knowledge of target function (Experiment 1), and whether it is integrated with the use of scene context in guidance of search (Experiment 2).
To investigate the contribution of object function to guidance by affordance in real-world scenes we tracked participants’ eye movements while they performed visual searches. The target objects were invented objects with invented functions that were learned by the participants prior to beginning search. By providing participants with information about only the features and functions of targets (and not about location) we omitted any effects on search from previously learned associations between the objects and their locations in the scene. This allowed us to examine guidance by affordance independently of traditional contextual effects. In Experiment 1 we compared the searches of participants who learned the functions of the targets to those who learned only the targets’ features. Results showed facilitation of visual search by knowledge of target function as compared against searches in which target function was not known. Experiment 2 compared searches for objects placed in locations congruent and incongruent with their function to show that guidance by affordance is benefitted by knowledge of target function in congruent searches. We concluded that guidance by affordance results from an understanding of the function of an object and the integration of that understanding into an understanding of the context of the scene as a whole
Subjects/Keywords: visual-search
;
affordance
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Witherspoon, R. (2012). Effects of Object Function on Visual Search in Real-World Scenes
. (Thesis). Queens University. Retrieved from http://hdl.handle.net/1974/7437
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Witherspoon, Richelle. “Effects of Object Function on Visual Search in Real-World Scenes
.” 2012. Thesis, Queens University. Accessed February 27, 2021.
http://hdl.handle.net/1974/7437.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Witherspoon, Richelle. “Effects of Object Function on Visual Search in Real-World Scenes
.” 2012. Web. 27 Feb 2021.
Vancouver:
Witherspoon R. Effects of Object Function on Visual Search in Real-World Scenes
. [Internet] [Thesis]. Queens University; 2012. [cited 2021 Feb 27].
Available from: http://hdl.handle.net/1974/7437.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Witherspoon R. Effects of Object Function on Visual Search in Real-World Scenes
. [Thesis]. Queens University; 2012. Available from: http://hdl.handle.net/1974/7437
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Illinois – Urbana-Champaign
3.
Ng, Gavin Jun Peng.
Systematic variability in stage-one processing as revealed by eye movements in efficient visual search.
Degree: MS, Psychology, 2018, University of Illinois – Urbana-Champaign
URL: http://hdl.handle.net/2142/101245
► Most models of visual search have reported that efficient search tasks are characterized by “flat” search slopes of less than 10ms/item. Based on this, such…
(more)
▼ Most models of
visual search have reported that efficient
search tasks are characterized by “flat”
search slopes of less than 10ms/item. Based on this, such models have concluded that stage-one processing times are invariant. In contrast, our lab recently reported systematic variability in stage-one processing times. In an efficient
search task with a fixed target, reaction times were observed to increase logarithmically with set size. In addition, this logarithmic increase was modulated by the
visual similarity between the target and the lures. We thus proposed a new model of
visual search: stage-one processing is characterized by a parallel, capacity-unlimited evidence accumulation process that is affected by both lure-target similarity (due to resolution limits of the eye) as well as the number of items on the display (due to the exhaustive nature of evidence accumulation). Here, we examined eye movements to further elaborate on these novel contributions of our model. When lure-target similarity was high, participants made more fixations, had longer initial saccade latencies, and were more likely to make an initial saccade that is target-uninformed. Effects of set size were also observed on some of these variables. Interestingly, these eye movement results are incompatible with our model’s proposal of a completely exhaustive stage-one process. To reconcile these differences, we update our model to propose that (1) top-down control factors such as strategy and task instructions influence the time to stop evidence accumulation in stage one and (2) exhaustive processing occurs at a smaller spatial scale (i.e. not necessarily across the entire display) although all locations are accumulating evidence.
Advisors/Committee Members: search?q=%2Bpublisher%3A%22University%20of%20Illinois%26%23160%3B%26%238211%3B%20Urbana-Champaign%22%20%2Bcontributor%3A%28%22Lleras%2C%20Alejandro%22%29&pagesize-30">Lleras, Alejandro (advisor),
search?q=%2Bpublisher%3A%22University%20of%20Illinois%26%23160%3B%26%238211%3B%20Urbana-Champaign%22%20%2Bcontributor%3A%28%22Buetti%2C%20Simona%22%29&pagesize-30">Buetti, Simona (advisor).
Subjects/Keywords: visual search; efficient search; eye movements
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Ng, G. J. P. (2018). Systematic variability in stage-one processing as revealed by eye movements in efficient visual search. (Thesis). University of Illinois – Urbana-Champaign. Retrieved from http://hdl.handle.net/2142/101245
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Ng, Gavin Jun Peng. “Systematic variability in stage-one processing as revealed by eye movements in efficient visual search.” 2018. Thesis, University of Illinois – Urbana-Champaign. Accessed February 27, 2021.
http://hdl.handle.net/2142/101245.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Ng, Gavin Jun Peng. “Systematic variability in stage-one processing as revealed by eye movements in efficient visual search.” 2018. Web. 27 Feb 2021.
Vancouver:
Ng GJP. Systematic variability in stage-one processing as revealed by eye movements in efficient visual search. [Internet] [Thesis]. University of Illinois – Urbana-Champaign; 2018. [cited 2021 Feb 27].
Available from: http://hdl.handle.net/2142/101245.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Ng GJP. Systematic variability in stage-one processing as revealed by eye movements in efficient visual search. [Thesis]. University of Illinois – Urbana-Champaign; 2018. Available from: http://hdl.handle.net/2142/101245
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Univerzitet u Beogradu
4.
Stajkić, Bojana, , 59431177.
Емергентна својства илузорних контура - асиметрија
визуелне претраге.
Degree: Filozofski fakultet, 2020, Univerzitet u Beogradu
URL: https://fedorabg.bg.ac.rs/fedora/get/o:22943/bdef:Content/get
► Општа психологија - Когнитивна психологија / General Psychology - Cognitive Psychology
Асиметрија визуелне претраге односи се на појаву да се стимулуси који поседују неко својство…
(more)
▼ Општа психологија - Когнитивна психологија /
General Psychology - Cognitive Psychology
Асиметрија визуелне претраге односи се на појаву да
се стимулуси који поседују неко својство у већој мери претражују
брже међу стимулусима који га поседују у мањој мери, него обрнуто.
У истраживању је испитано да ли је овај феномен присутан при
претраживању илузорних контура различите величине. Кроз анализу
нагиба претраживања испитана је ефикасност претраге илузорних и
одговарајућих целовитих контура. Разлике у ефикасности претраге
анализиране су и дуж линије емергенције, од индуктора, постепеним
усложњавањем до емергенције перцептивних својстава - илузорне
дужине и илузорног облика. Док гешталтистичка теорија претпоставља
да се илузорне контуре опажају без учешћа визуелне пажње јер се
емергентна својства перцептивно намећу, теорија интеграције
карактеристика предвиђа ангажовање пажње и мање ефикасну претрагу.
Изведених пет експеримената показало је да асиметрија претраживања
постоји само код илузорних стимулуса, али да се она губи увођењем
експерименталне контроле контекста, чиме су потврђене критике
парадигме асиметрије претраживања. И целовити и илузорни стимулуси
претражују се уз ефекат обима сета, односно уз учешће визуелне
пажње. Илузорне конфигурације се опажају као независни перцепти
подједнако ефикасно колико и њихови елементи који су целовити,
једноставни стимулуси. При претраживању илузорних стимулуса
јединица обраде није индуктор, већ читава конфигурација.
Претраживање илузорних стимулуса одређено је интеракцијом два
фактора: дистрибуције пажње између интеграције градивних елемената
илузорних контура и задатка визуелне претраге, али и осетљивости на
контекст, као пречице у визуелној обради података када су ресурси
пажње оптерећени
Advisors/Committee Members: search?q=%2Bpublisher%3A%22Univerzitet%20u%20Beogradu%22%20%2Bcontributor%3A%28%22Gvozdenovi%C3%84%C2%87%2C%20Vasilije%2C%201971-%2C%2012817767%22%29&pagesize-30">Gvozdenović, Vasilije, 1971-, 12817767.
Subjects/Keywords: visual search; search asymmetry; emergency; illusory
contours
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Stajkić, Bojana, , 5. (2020). Емергентна својства илузорних контура - асиметрија
визуелне претраге. (Thesis). Univerzitet u Beogradu. Retrieved from https://fedorabg.bg.ac.rs/fedora/get/o:22943/bdef:Content/get
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Stajkić, Bojana, , 59431177. “Емергентна својства илузорних контура - асиметрија
визуелне претраге.” 2020. Thesis, Univerzitet u Beogradu. Accessed February 27, 2021.
https://fedorabg.bg.ac.rs/fedora/get/o:22943/bdef:Content/get.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Stajkić, Bojana, , 59431177. “Емергентна својства илузорних контура - асиметрија
визуелне претраге.” 2020. Web. 27 Feb 2021.
Vancouver:
Stajkić, Bojana, 5. Емергентна својства илузорних контура - асиметрија
визуелне претраге. [Internet] [Thesis]. Univerzitet u Beogradu; 2020. [cited 2021 Feb 27].
Available from: https://fedorabg.bg.ac.rs/fedora/get/o:22943/bdef:Content/get.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Stajkić, Bojana, 5. Емергентна својства илузорних контура - асиметрија
визуелне претраге. [Thesis]. Univerzitet u Beogradu; 2020. Available from: https://fedorabg.bg.ac.rs/fedora/get/o:22943/bdef:Content/get
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Edinburgh
5.
Fraser, Louise.
The visual span: Identifying span size during object search in real-world scenes.
Degree: 2011, University of Edinburgh
URL: http://hdl.handle.net/1842/6111
► The visual span during object search in real-world scenes was investigated using the ‘moving window’ experimental paradigm. A repeated measures design was used in which…
(more)
▼ The
visual span during object
search in real-world scenes was investigated using the ‘moving window’ experimental paradigm. A repeated measures design was used in which window size was manipulated to create the 7 levels of the independent variable (one control and six experimental), while reaction time formed the main dependent variable. Eye movement data was also recorded to complement the main analysis.
Visual span was defined as the window size at which reaction times became indistinguishable from those of the control (no window) condition. Based on previous research findings it was expected that
search time would decrease as a function of increasing window size, leading to the determination of the
visual span at a window size of 5.4°. While this downward trend was recovered from the reaction time data, which showed a significant effect of window size (p = .00), even the largest window (6.1°) failed to yield reaction times equal to those of the control condition. The likelihood of participants finding the target object did reach control levels in the 5.4° window trials. Analysis of eye movement data indicates that reduced saccade amplitudes in the experimental condition were responsible for the inflated reaction times found.
Advisors/Committee Members: search?q=%2Bpublisher%3A%22University%20of%20Edinburgh%22%20%2Bcontributor%3A%28%22Nuthmann%2C%20Antje%22%29&pagesize-30">Nuthmann, Antje.
Subjects/Keywords: Visual span; object search
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Fraser, L. (2011). The visual span: Identifying span size during object search in real-world scenes. (Thesis). University of Edinburgh. Retrieved from http://hdl.handle.net/1842/6111
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Fraser, Louise. “The visual span: Identifying span size during object search in real-world scenes.” 2011. Thesis, University of Edinburgh. Accessed February 27, 2021.
http://hdl.handle.net/1842/6111.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Fraser, Louise. “The visual span: Identifying span size during object search in real-world scenes.” 2011. Web. 27 Feb 2021.
Vancouver:
Fraser L. The visual span: Identifying span size during object search in real-world scenes. [Internet] [Thesis]. University of Edinburgh; 2011. [cited 2021 Feb 27].
Available from: http://hdl.handle.net/1842/6111.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Fraser L. The visual span: Identifying span size during object search in real-world scenes. [Thesis]. University of Edinburgh; 2011. Available from: http://hdl.handle.net/1842/6111
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Guelph
6.
Trick, Lana.
Enumeration of Illusory Contours.
Degree: MS, Department of Psychology, 2014, University of Guelph
URL: https://atrium.lib.uoguelph.ca/xmlui/handle/10214/8504
► Visual search and enumeration tasks were used to assess the attentional demands of processing illusory contour figures (figures composed of contours that are perceived despite…
(more)
▼ Visual search and enumeration tasks were used to assess the attentional demands of processing illusory contour figures (figures composed of contours that are perceived despite there being no physical changes in the scene). In all tasks, participants were required to find or enumerate a vertical rectangle(s) defined by either line-endings or “pacmen” figures (Kanizsa class).
Search time for line-end class figures did not increase markedly as the number of horizontal distractors increased (efficient
search). In contrast, when searching for Kanizsa targets amid horizontal distractors,
search was inefficient. Simple enumeration (enumeration of targets) and selective enumeration (enumeration of targets in distractors) tasks were used to disambiguate two stages of figure processing: individuation and shape discrimination. Specifically, simple enumeration was used to assess the attentional demands of unit formation and individuation (defining a unit as unique and separate from everything else) of the objects and selective enumeration measured the attentional demands required to discriminate target shapes from distractor shapes. Participants enumerated 1-9 vertical real or illusory contour rectangles either without distractors or with 4 or 8 horizontal distractors. Subitizing, a fast (40-100 ms/target) process specialized for small numbers of items (e.g. 1-3), is only evident when enumeration makes low attentional demands; when attentional demands are greater, the same slow process is used throughout the number range (e.g. 200+ ms/target in the 1-8 range, Trick & Pylyshyn, 1994). Both line-end and Kanizsa class real and illusory contour figures were subitized in simple enumeration, indicating that individuation of these figures is not attentionally demanding. However, subitizing was only evident for line-end real-contour figures in selective enumeration. This suggests that attention plays a role in defining shapes formed by illusory contours. These findings contribute to our understanding of both illusory contours and enumeration.
Advisors/Committee Members: search?q=%2Bpublisher%3A%22University%20of%20Guelph%22%20%2Bcontributor%3A%28%22Trick%2C%20Lana%22%29&pagesize-30">Trick, Lana (advisor).
Subjects/Keywords: enumeration; illusory contour; visual search
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Trick, L. (2014). Enumeration of Illusory Contours. (Masters Thesis). University of Guelph. Retrieved from https://atrium.lib.uoguelph.ca/xmlui/handle/10214/8504
Chicago Manual of Style (16th Edition):
Trick, Lana. “Enumeration of Illusory Contours.” 2014. Masters Thesis, University of Guelph. Accessed February 27, 2021.
https://atrium.lib.uoguelph.ca/xmlui/handle/10214/8504.
MLA Handbook (7th Edition):
Trick, Lana. “Enumeration of Illusory Contours.” 2014. Web. 27 Feb 2021.
Vancouver:
Trick L. Enumeration of Illusory Contours. [Internet] [Masters thesis]. University of Guelph; 2014. [cited 2021 Feb 27].
Available from: https://atrium.lib.uoguelph.ca/xmlui/handle/10214/8504.
Council of Science Editors:
Trick L. Enumeration of Illusory Contours. [Masters Thesis]. University of Guelph; 2014. Available from: https://atrium.lib.uoguelph.ca/xmlui/handle/10214/8504

University of Illinois – Urbana-Champaign
7.
Cronin, Deborah Ann.
The Information Theory of Vision: evidence from eye-movements.
Degree: MA, Psychology, 2015, University of Illinois – Urbana-Champaign
URL: http://hdl.handle.net/2142/88995
► Recent evidence suggests that target-dissimilar items that are typically regarded as irrelevant to reaction times during visual search do, in fact, affect reaction times (Buetti…
(more)
▼ Recent evidence suggests that target-dissimilar items that are typically regarded as irrelevant to reaction times during visual search do, in fact, affect reaction times (Buetti et al., in revision). This evidence suggests that the effect on reaction time of target-dissimilar items (lures) increases logarithmically as the number of lures present in a display increases. In response to these findings, Buetti & Lleras (in preparation) developed a model of visual search, the Information Theory of Vision (ITV). ITV uniquely proposes that the time it takes to perform the initial stage of visual search, during which likely non-targets (lures) are separated from possible targets (candidates), will increase with the amount of information present in the display. ITV further employs Information Theory (Shannon, 1948), Signal Detection Theory (Green & Swets, 1966), and Hick’s Law (Hick, 1952) to support its predictions. In this study, we extend these predictions to eye-movements and find further support for ITV. Predictions of Guided Search (Wolfe, 1994) and Target Acqusition Model (Zelinsky, 2008) are also discussed.
Subjects/Keywords: Visual search; eye-movements
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Cronin, D. A. (2015). The Information Theory of Vision: evidence from eye-movements. (Thesis). University of Illinois – Urbana-Champaign. Retrieved from http://hdl.handle.net/2142/88995
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Cronin, Deborah Ann. “The Information Theory of Vision: evidence from eye-movements.” 2015. Thesis, University of Illinois – Urbana-Champaign. Accessed February 27, 2021.
http://hdl.handle.net/2142/88995.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Cronin, Deborah Ann. “The Information Theory of Vision: evidence from eye-movements.” 2015. Web. 27 Feb 2021.
Vancouver:
Cronin DA. The Information Theory of Vision: evidence from eye-movements. [Internet] [Thesis]. University of Illinois – Urbana-Champaign; 2015. [cited 2021 Feb 27].
Available from: http://hdl.handle.net/2142/88995.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Cronin DA. The Information Theory of Vision: evidence from eye-movements. [Thesis]. University of Illinois – Urbana-Champaign; 2015. Available from: http://hdl.handle.net/2142/88995
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Mississippi State University
8.
Antonelli, Karla B.
Episodically defined categories in the organization of visual memory.
Degree: PhD, Psychology, 2014, Mississippi State University
URL: http://sun.library.msstate.edu/ETD-db/theses/available/etd-10312014-091845/
;
► Research into the nature and content of visual long-term memory has investigated what aspects of its representation may account for the remarkable ability we…
(more)
▼ Research into the nature and content of
visual long-term memory has investigated what aspects of its representation may account for the remarkable ability we have to remember large amounts of detailed
visual information. One theory proposed is that
visual memories are supported by an underlying structure of conceptual knowledge around which
visual information is organized. However, findings in memory for
visual information learned in a
visual search task were not explained by this theory of conceptual support, and a new theory is proposed that incorporates the importance of episodic, task-relevant
visual information into the organizational structure of
visual memory.
The current study examined
visual long-term memory organization as evidenced by retroactive interference effects in memory for objects learned in a
visual search. Four experiments were conducted to examine the amount of retroactive interference induced based on aspects in which interfering objects were related to learned objects. Specifically, episodically task-relevant information about objects was manipulated between conditions based on
search instructions. Aspects of conceptual category,
perceptual information (color), and context (object role in
search) were examined for their contribution to retroactive interference for learned objects.
Findings indicated that when made episodically task-relevant, perceptual, as well as conceptual, information contributed to the organization of
visual long-term memory. However, when made episodically non-relevant, perceptual information did not contribute to memory organization, and memory defaulted to conceptual category organization. This finding supports the theory of an episodically defined organizational structure in
visual long-term memory that is overlaid upon an underlying conceptual structure.
Advisors/Committee Members: search?q=%2Bpublisher%3A%22Mississippi%20State%20University%22%20%2Bcontributor%3A%28%22Gary%20L.%20Bradshaw%22%29&pagesize-30">Gary L. Bradshaw (committee member),
search?q=%2Bpublisher%3A%22Mississippi%20State%20University%22%20%2Bcontributor%3A%28%22Lesley%20Strawderman%22%29&pagesize-30">Lesley Strawderman (committee member),
search?q=%2Bpublisher%3A%22Mississippi%20State%20University%22%20%2Bcontributor%3A%28%22Deborah%20K.%20Eakin%22%29&pagesize-30">Deborah K. Eakin (committee member),
search?q=%2Bpublisher%3A%22Mississippi%20State%20University%22%20%2Bcontributor%3A%28%22Carrick%20C.%20Williams%22%29&pagesize-30">Carrick C. Williams (chair).
Subjects/Keywords: categorization; retroactive interference; visual search; visual memory
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Antonelli, K. B. (2014). Episodically defined categories in the organization of visual memory. (Doctoral Dissertation). Mississippi State University. Retrieved from http://sun.library.msstate.edu/ETD-db/theses/available/etd-10312014-091845/ ;
Chicago Manual of Style (16th Edition):
Antonelli, Karla B. “Episodically defined categories in the organization of visual memory.” 2014. Doctoral Dissertation, Mississippi State University. Accessed February 27, 2021.
http://sun.library.msstate.edu/ETD-db/theses/available/etd-10312014-091845/ ;.
MLA Handbook (7th Edition):
Antonelli, Karla B. “Episodically defined categories in the organization of visual memory.” 2014. Web. 27 Feb 2021.
Vancouver:
Antonelli KB. Episodically defined categories in the organization of visual memory. [Internet] [Doctoral dissertation]. Mississippi State University; 2014. [cited 2021 Feb 27].
Available from: http://sun.library.msstate.edu/ETD-db/theses/available/etd-10312014-091845/ ;.
Council of Science Editors:
Antonelli KB. Episodically defined categories in the organization of visual memory. [Doctoral Dissertation]. Mississippi State University; 2014. Available from: http://sun.library.msstate.edu/ETD-db/theses/available/etd-10312014-091845/ ;

University of Oxford
9.
Thomas, Sally.
Searching over time : a study of attention using preview search.
Degree: PhD, 2019, University of Oxford
URL: http://ora.ox.ac.uk/objects/uuid:d3f49d7f-77e6-4b6b-b1a1-15e6020d7fae
;
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.780796
► Attention is the mechanism that enables us to process the sensory information most relevant to our current goals. As our most dominant sense, the way…
(more)
▼ Attention is the mechanism that enables us to process the sensory information most relevant to our current goals. As our most dominant sense, the way in which we attend to the visual environment is a highly important and highly researched topic (Sperling, 1960; Eriksen & Eriksen, 1974; Posner, 1980). One such method of examining visual attention is using a visual search task, where participants must locate a specified target amid distractors and their reaction times and accuracy are recorded (Treisman & Gelade, 1980; Duncan & Humphreys, 1989; Wolfe, Cave & Franzel, 1989) to gain an understanding of how attention can be guided through an array of items. Using a particular variant of the visual search task known as preview search (Watson & Humphreys, 1997), the purpose of this thesis is to extend our understanding of visual attention by examining how and if we can ignore stimuli known to be irrelevant, and if prior knowledge and expectation can guide attention effectively. Chapter 1 examines the effect of a concurrent task on performance, and suggests the timing of a concurrent task as well as the modality impact the efficiency of search. Chapters 2 and 3 examine the role of prior knowledge and expectation on search and show that the usefulness of expectation depends on the type of prior knowledge (e.g. a property or the location of the stimuli). Chapter 4 examines the role of emotion and whether a negative face can be ignored, with the results suggesting preferential selection of faces viewed face-on, rather than in profile. Results of the experiments are discussed in relation to theories of preview search.
Subjects/Keywords: Attention; Visual Attention; Preview search; Visual marking
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Thomas, S. (2019). Searching over time : a study of attention using preview search. (Doctoral Dissertation). University of Oxford. Retrieved from http://ora.ox.ac.uk/objects/uuid:d3f49d7f-77e6-4b6b-b1a1-15e6020d7fae ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.780796
Chicago Manual of Style (16th Edition):
Thomas, Sally. “Searching over time : a study of attention using preview search.” 2019. Doctoral Dissertation, University of Oxford. Accessed February 27, 2021.
http://ora.ox.ac.uk/objects/uuid:d3f49d7f-77e6-4b6b-b1a1-15e6020d7fae ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.780796.
MLA Handbook (7th Edition):
Thomas, Sally. “Searching over time : a study of attention using preview search.” 2019. Web. 27 Feb 2021.
Vancouver:
Thomas S. Searching over time : a study of attention using preview search. [Internet] [Doctoral dissertation]. University of Oxford; 2019. [cited 2021 Feb 27].
Available from: http://ora.ox.ac.uk/objects/uuid:d3f49d7f-77e6-4b6b-b1a1-15e6020d7fae ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.780796.
Council of Science Editors:
Thomas S. Searching over time : a study of attention using preview search. [Doctoral Dissertation]. University of Oxford; 2019. Available from: http://ora.ox.ac.uk/objects/uuid:d3f49d7f-77e6-4b6b-b1a1-15e6020d7fae ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.780796

University of Illinois – Urbana-Champaign
10.
Chu, Hengqing.
Towards a better understanding of prioritization of visual information during preview search.
Degree: MA, 0338, 2011, University of Illinois – Urbana-Champaign
URL: http://hdl.handle.net/2142/18505
► In visual search tasks, if a subset of the search items (without the target) is presented at least 400 ms before the full set is…
(more)
▼ In
visual search tasks, if a subset of the
search items (without the target) is presented at least 400 ms before the full set is in view,
visual search efficiency is improved as if only the second set of items had been searched. This phenomenon is known as
visual marking, and is thought to reflect both inhibitory-tagging of old previewed items and prioritization of the new items due to their more recent (and distinct) onset. This study investigates the nature of this inhibitory-tagging in two perspectives. Part I investigates whether this inhibitory-tagging is location-based or feature-based. Subjects searched for a sideway T among Ls of identical color and regular Ts and upside-down Ts of a second color, and reported the orientation of the target T. In addition, to eliminate the contribution of bottom-up attentional capture by the onset of the second set of items, we included a 200ms blank display between the initial preview and the final
search display. In five experiments, we demonstrated that the preview benefit relies preferentially on feature-based inhibitory tagging (Experiments 1-3), even when location-based information is available and can be used to improve
search efficiency (Experiments 4 and 5). The results are discussed in the context of processing economies and provide strong evidence that the mechanisms underlying the preview benefit are very sensitive to the experimental context in which the preview
search is investigated. Part II investigates whether this inhibitory-tagging can be semantically mediated. In four experiments, we demonstrated that previewing a color blob indicating either target color or distractor color (Experiment 6 and 7) can also produce a preview benefit, and previewing target color is equivalent to previewing half of the distractors. When the previewed color information is further abstracted to semantic level by showing a word cue which indicates either distractor color or target color (Experiment 8 and 9) , this preview benefit is even stronger. In fact, previewing target color information produces the same benefits in terms of RTs as previewing half of the distractors. This is not true for previewing distractor color information. In summary, the results suggest that in
visual search, prioritizing
visual information is flexible and higher
search efficiency can be achieved from different sources.
Advisors/Committee Members: search?q=%2Bpublisher%3A%22University%20of%20Illinois%26%23160%3B%26%238211%3B%20Urbana-Champaign%22%20%2Bcontributor%3A%28%22Lleras%2C%20Alejandro%22%29&pagesize-30">Lleras, Alejandro (advisor).
Subjects/Keywords: Visual Search; Visual Marking; Preview Benefit
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Chu, H. (2011). Towards a better understanding of prioritization of visual information during preview search. (Thesis). University of Illinois – Urbana-Champaign. Retrieved from http://hdl.handle.net/2142/18505
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Chu, Hengqing. “Towards a better understanding of prioritization of visual information during preview search.” 2011. Thesis, University of Illinois – Urbana-Champaign. Accessed February 27, 2021.
http://hdl.handle.net/2142/18505.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Chu, Hengqing. “Towards a better understanding of prioritization of visual information during preview search.” 2011. Web. 27 Feb 2021.
Vancouver:
Chu H. Towards a better understanding of prioritization of visual information during preview search. [Internet] [Thesis]. University of Illinois – Urbana-Champaign; 2011. [cited 2021 Feb 27].
Available from: http://hdl.handle.net/2142/18505.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Chu H. Towards a better understanding of prioritization of visual information during preview search. [Thesis]. University of Illinois – Urbana-Champaign; 2011. Available from: http://hdl.handle.net/2142/18505
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Sydney
11.
Kong, Garry.
An Investigation of Complex Visual Search With The Genetic Algorithm
.
Degree: 2016, University of Sydney
URL: http://hdl.handle.net/2123/16326
► Visual search is an everyday task, defined as the search for a target amongst distractors. Visual search has historically been thought to reflect primarily early…
(more)
▼ Visual search is an everyday task, defined as the search for a target amongst distractors. Visual search has historically been thought to reflect primarily early perceptual processes, with little influence of cognitive processes. However, recent research suggests that this is an artefact of the simple stimuli typically used in the field. In this thesis, I will use the genetic algorithm to study visual search for complex stimuli. In part 1, I use the genetic algorithm to investigate a display comprised of 119 distractors, each with an orientation, colour and size. Results suggest that distractors differing in colour but sharing orientation with the target facilitated performance. This result is not predicted by common visual search models, posing an external validity problem for experiments using simple stimuli. Part 2 examines the processes behind visual search for colour, using displays that took advantage of colour labelling. The results show that it is only possible to search optimally when the target can be easily encoded in language. Further experimentation shows that priming a colour target that cannot be easily encoded in language then allows for optimal search, indicating that a top-down mechanism not based in language is used in search for colour. In part 3, we study linear separability, where search for a target is difficult if it is presented with distractors with more of a feature and other distractors with less of that same feature. We systematically varied the orientation of the target and the distractors, finding two independent measures of performance. One measure was correlated with bottom-up ability, while the other was correlated with the top-down ability. In the final chapter, I discuss the results of the three parts in the context of search for complex, heterogeneous displays. I speculate on the nature of the top-down mechanism, and offer directions for future research.
Subjects/Keywords: visual search;
genetic algorithm;
visual cognition;
attention
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Kong, G. (2016). An Investigation of Complex Visual Search With The Genetic Algorithm
. (Thesis). University of Sydney. Retrieved from http://hdl.handle.net/2123/16326
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Kong, Garry. “An Investigation of Complex Visual Search With The Genetic Algorithm
.” 2016. Thesis, University of Sydney. Accessed February 27, 2021.
http://hdl.handle.net/2123/16326.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Kong, Garry. “An Investigation of Complex Visual Search With The Genetic Algorithm
.” 2016. Web. 27 Feb 2021.
Vancouver:
Kong G. An Investigation of Complex Visual Search With The Genetic Algorithm
. [Internet] [Thesis]. University of Sydney; 2016. [cited 2021 Feb 27].
Available from: http://hdl.handle.net/2123/16326.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Kong G. An Investigation of Complex Visual Search With The Genetic Algorithm
. [Thesis]. University of Sydney; 2016. Available from: http://hdl.handle.net/2123/16326
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Universiteit Utrecht
12.
Bajlekov, G.I.
Theories of Visual Search and Their Applicability to Haptic Search.
Degree: 2012, Universiteit Utrecht
URL: http://dspace.library.uu.nl:8080/handle/1874/258459
► In this review, the current status of search studies in both the visual and haptic modality is discussed, with an aim to assess the similarity…
(more)
▼ In this review, the current status of
search studies in both the
visual and haptic modality is discussed, with an aim to assess the similarity of the processes involved. While recent models of
visual search propose differing mechanisms explaining experimental results, it is generally agreed on that the
search process consists of a pre-attentive parallel stage and an attentive serial stage. During the pre-attentive stage, basic features are examined and the information is used to guide attention towards salient items during the attentive stage, improving the efficiency of the
search process. Using such models, average response times can be predicted accurately in a wide range of experimental settings. However, modeled response time distributions often do not correspond to experimental data, indicating that many current models of
visual search are incomplete. Other points of discussion still remain, such as the cause of asymmetric behaviours with symmetric task designs, and the exact mechanism of top-down control.
The haptic modality of
search has been studied less extensively than the
visual one. Haptic experiments exhibit behaviours similar to
visual search, with
search efficiency dependent on target and distractor features in the same way as described for
visual search. Discrepancies observed between
visual and haptic
search are often due to suboptimally matched stimuli between the two modalities. Due to the differences in feature dimensions, spatial constrains and experimental methods, such comparisons are difficult, and results of recent studies are not conclusive. There are, however, indications that
search data are at least in part exchangeable between
visual and haptic processes.
Advisors/Committee Members: search?q=%2Bpublisher%3A%22Universiteit%20Utrecht%22%20%2Bcontributor%3A%28%22Bergmann%20Tiest%2C%20W.M.%22%29&pagesize-30">Bergmann Tiest, W.M.,
search?q=%2Bpublisher%3A%22Universiteit%20Utrecht%22%20%2Bcontributor%3A%28%22van%20Wezel%2C%20R.J.A%22%29&pagesize-30">van Wezel, R.J.A.
Subjects/Keywords: visual search; haptic search; pop out; guided search
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Bajlekov, G. I. (2012). Theories of Visual Search and Their Applicability to Haptic Search. (Masters Thesis). Universiteit Utrecht. Retrieved from http://dspace.library.uu.nl:8080/handle/1874/258459
Chicago Manual of Style (16th Edition):
Bajlekov, G I. “Theories of Visual Search and Their Applicability to Haptic Search.” 2012. Masters Thesis, Universiteit Utrecht. Accessed February 27, 2021.
http://dspace.library.uu.nl:8080/handle/1874/258459.
MLA Handbook (7th Edition):
Bajlekov, G I. “Theories of Visual Search and Their Applicability to Haptic Search.” 2012. Web. 27 Feb 2021.
Vancouver:
Bajlekov GI. Theories of Visual Search and Their Applicability to Haptic Search. [Internet] [Masters thesis]. Universiteit Utrecht; 2012. [cited 2021 Feb 27].
Available from: http://dspace.library.uu.nl:8080/handle/1874/258459.
Council of Science Editors:
Bajlekov GI. Theories of Visual Search and Their Applicability to Haptic Search. [Masters Thesis]. Universiteit Utrecht; 2012. Available from: http://dspace.library.uu.nl:8080/handle/1874/258459

University of New South Wales
13.
Dunn, James.
Robust search templates for face-in-crowd search.
Degree: Psychology, 2018, University of New South Wales
URL: http://handle.unsw.edu.au/1959.4/60759
;
https://unsworks.unsw.edu.au/fapi/datastream/unsworks:54207/SOURCE02?view=true
► Police and security personnel often search crowds to identify persons of interest. This task is challenging because the appearance of the target’s face can vary…
(more)
▼ Police and security personnel often
search crowds to identify persons of interest. This task is challenging because the appearance of the target’s face can vary considerably between encounters. As a result, effective
search requires a perceptual representation – a ‘robust
search template’- that captures the invariant aspects of the appearance of the target. Previous studies of face-in-crowd
search have shown participants a high-quality image of the target, and then asked them to find this same image in a
search array. As a result, the difficulty of this task in more realistic, unconstrained environments is unknown. In this thesis, I develop a new, more realistic face-in the crowd
search paradigm using unconstrained imagery and show that face-in-crowd
search is highly error prone when searching for unfamiliar faces using images that include natural day-to-day variations in appearance. To reduce these errors, I then investigated the factors that help produce robust
search templates of faces. In Chapter 2, I tested whether the nature of the images shown prior to
search affected subsequent
search performance. I found that
search performance improved after presenting participants with multiple images of the target, or by presenting ‘face averages’ derived from multiple images of the target. In Chapter 3, I investigated the effect of top-down information in the formation of
search templates by manipulating the attribution of identity to pairs of target images. Assigning the correct identity attribution to image pairs of the same person improved
search performance relative to when participants believed the images were of different people. Together, results of Chapters 2 and 3 demonstrate that
search templates are modulated by both bottom-up perceptual information and top-down processes. In Chapter 4, I then examined improvements in
visual search performance as people become familiar with a face. I found incremental gains in both accuracy and speed of
visual search as a function of face familiarity, suggesting that
visual search can provide a sensitive index of face familiarity. Together, these findings advance our understanding of the perceptual representations that underpin accurate face-in-crowd
search and offer potential solutions for improving accuracy in real-world face
search tasks.
Advisors/Committee Members: search?q=%2Bpublisher%3A%22University%20of%20New%20South%20Wales%22%20%2Bcontributor%3A%28%22White%2C%20David%2C%20Psychology%2C%20Faculty%20of%20Science%2C%20UNSW%22%29&pagesize-30">White, David, Psychology, Faculty of Science, UNSW,
search?q=%2Bpublisher%3A%22University%20of%20New%20South%20Wales%22%20%2Bcontributor%3A%28%22Kemp%2C%20Richard%2C%20Psychology%2C%20Faculty%20of%20Science%2C%20UNSW%22%29&pagesize-30">Kemp, Richard, Psychology, Faculty of Science, UNSW.
Subjects/Keywords: Face Search; Face Identification; Face Recognition; Visual Search; Face Search
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Dunn, J. (2018). Robust search templates for face-in-crowd search. (Doctoral Dissertation). University of New South Wales. Retrieved from http://handle.unsw.edu.au/1959.4/60759 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:54207/SOURCE02?view=true
Chicago Manual of Style (16th Edition):
Dunn, James. “Robust search templates for face-in-crowd search.” 2018. Doctoral Dissertation, University of New South Wales. Accessed February 27, 2021.
http://handle.unsw.edu.au/1959.4/60759 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:54207/SOURCE02?view=true.
MLA Handbook (7th Edition):
Dunn, James. “Robust search templates for face-in-crowd search.” 2018. Web. 27 Feb 2021.
Vancouver:
Dunn J. Robust search templates for face-in-crowd search. [Internet] [Doctoral dissertation]. University of New South Wales; 2018. [cited 2021 Feb 27].
Available from: http://handle.unsw.edu.au/1959.4/60759 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:54207/SOURCE02?view=true.
Council of Science Editors:
Dunn J. Robust search templates for face-in-crowd search. [Doctoral Dissertation]. University of New South Wales; 2018. Available from: http://handle.unsw.edu.au/1959.4/60759 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:54207/SOURCE02?view=true

Rice University
14.
Orsten, Kimberley D.
False Pop Out.
Degree: PhD, Social Sciences, 2015, Rice University
URL: http://hdl.handle.net/1911/88369
► A single, unique target often pops out quickly and efficiently from a field of homogenous distractors in visual search. Pop out has helped shape theories…
(more)
▼ A single, unique target often pops out quickly and efficiently from a field of homogenous distractors in
visual search. Pop out has helped shape theories of
visual attention and feature integration as well as to identify basic features in human vision. The present experiments demonstrate a new phenomenon, false pop out, wherein one of the homogenous distractors competes with the singleton target to pop out, perhaps by breaking an overall grouping or pattern emerging from the display. Using a compilation of several studies, this research reports the effect in a number of display contexts using a number of different stimuli, and provides converging evidence toward the idea that low and high level features contribute equally to the primary perceptual experience, a counterintuitive finding for most current theories of
visual search.
Advisors/Committee Members: search?q=%2Bpublisher%3A%22Rice%20University%22%20%2Bcontributor%3A%28%22Pomerantz%2C%20James%20R.%22%29&pagesize-30">Pomerantz, James R. (advisor),
search?q=%2Bpublisher%3A%22Rice%20University%22%20%2Bcontributor%3A%28%22Dannemiller%2C%20James%20L%22%29&pagesize-30">Dannemiller, James L (committee member),
search?q=%2Bpublisher%3A%22Rice%20University%22%20%2Bcontributor%3A%28%22Lane%2C%20David%20M%22%29&pagesize-30">Lane, David M (committee member),
search?q=%2Bpublisher%3A%22Rice%20University%22%20%2Bcontributor%3A%28%22Grandy%2C%20Richard%20E%22%29&pagesize-30">Grandy, Richard E (committee member).
Subjects/Keywords: visual search; visual attention; visual perception; Gestalts; features; pop out
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Orsten, K. D. (2015). False Pop Out. (Doctoral Dissertation). Rice University. Retrieved from http://hdl.handle.net/1911/88369
Chicago Manual of Style (16th Edition):
Orsten, Kimberley D. “False Pop Out.” 2015. Doctoral Dissertation, Rice University. Accessed February 27, 2021.
http://hdl.handle.net/1911/88369.
MLA Handbook (7th Edition):
Orsten, Kimberley D. “False Pop Out.” 2015. Web. 27 Feb 2021.
Vancouver:
Orsten KD. False Pop Out. [Internet] [Doctoral dissertation]. Rice University; 2015. [cited 2021 Feb 27].
Available from: http://hdl.handle.net/1911/88369.
Council of Science Editors:
Orsten KD. False Pop Out. [Doctoral Dissertation]. Rice University; 2015. Available from: http://hdl.handle.net/1911/88369

University of Edinburgh
15.
Mejia-Ramirez, Manuel.
Effect of practice on perceptual load.
Degree: 2013, University of Edinburgh
URL: http://hdl.handle.net/1842/8832
► Within attention studies, Lavie's load theory (Lavie & Tsal, 1994; Lavie, Hirst, de Fockert, & Viding, 2004) presented an account that could settle the question…
(more)
▼ Within attention studies, Lavie's load theory (Lavie & Tsal, 1994; Lavie, Hirst, de Fockert, & Viding, 2004) presented an account that could settle the question whether attention selects stimuli to be processed at an early or late stage of cognitive processing. This theory relied on the concepts of "perceptual load" and "attentional capacity", proposing that attentional resources are automatically allocated to stimuli, but when the perceptual load of the stimuli exceeds person's capacity, task-irrelevant stimuli will not be processed. Previous studies have shown that attention-demanding tasks get improvement with practice, but there has been no clear evidence of how this improvement relates to "perceptual load" (within Load theory framework). The present study used one of the experimental paradigms used in studies motivated by this theory to investigate the effect of practice on perceptual load. Participants were asked to practice a
visual search task, and ignore an irrelevant distractor, for five sessions. In the first session, results replicated previous studies showing that irrelevant distractors were processed only under low perceptual load. With practice, distractors began to be processed under high-load too, and less processed under the low-load condition. Results are interpreted as practice modulating the effective perceptual load of stimuli under high load conditions (perceptual load diminishes, therefore attentional resources are allocated to the irrelevant distractor that was not originally processed), and practice increasing the effectiveness of active inhibition of irrelevant distractors under the low perceptual load.
Advisors/Committee Members: search?q=%2Bpublisher%3A%22University%20of%20Edinburgh%22%20%2Bcontributor%3A%28%22Carmel%2C%20David%22%29&pagesize-30">Carmel, David.
Subjects/Keywords: perceptual load; attention; practice; visual search task
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Mejia-Ramirez, M. (2013). Effect of practice on perceptual load. (Thesis). University of Edinburgh. Retrieved from http://hdl.handle.net/1842/8832
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Mejia-Ramirez, Manuel. “Effect of practice on perceptual load.” 2013. Thesis, University of Edinburgh. Accessed February 27, 2021.
http://hdl.handle.net/1842/8832.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Mejia-Ramirez, Manuel. “Effect of practice on perceptual load.” 2013. Web. 27 Feb 2021.
Vancouver:
Mejia-Ramirez M. Effect of practice on perceptual load. [Internet] [Thesis]. University of Edinburgh; 2013. [cited 2021 Feb 27].
Available from: http://hdl.handle.net/1842/8832.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Mejia-Ramirez M. Effect of practice on perceptual load. [Thesis]. University of Edinburgh; 2013. Available from: http://hdl.handle.net/1842/8832
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Toronto
16.
Williams, Ryan Scott.
“Don’t Look Down”: Alpha-Band Activity Reveals Selection Prior to Suppression of to-be-Ignored Locations.
Degree: 2017, University of Toronto
URL: http://hdl.handle.net/1807/79439
► To examine behavioural and electrophysiological effects associated with the intentional suppression of spatial locations, a task was employed which cued to-be-ignored locations prior to stimulus…
(more)
▼ To examine behavioural and electrophysiological effects associated with the intentional suppression of spatial locations, a task was employed which cued to-be-ignored locations prior to stimulus presentation. Over three experiments, participants were faster to respond to targets when such stimuli were presented alongside salient distractors at cued locations compared to uncued locations. This distractor cueing benefit, however, was time dependent as it was only observed when sufficient time was provided between cue and target displays. Possibly underlying the distractor cueing benefit, hemispheric differences in alpha-band activity gradually emerged between cue and target displays in accordance with the position of cued locations. While it was expected that electrophysiological markers associated with reactive suppression would also be influenced by distractor cueing, this was not the case; only a late stage of effortful processing was affected. Further, findings were present to suggest that both endogenous and exogenous processes contributed to the distractor cueing benefit.
M.A.
Advisors/Committee Members: search?q=%2Bpublisher%3A%22University%20of%20Toronto%22%20%2Bcontributor%3A%28%22Ferber%2C%20Susanne%22%29&pagesize-30">Ferber, Susanne,
search?q=%2Bpublisher%3A%22University%20of%20Toronto%22%20%2Bcontributor%3A%28%22Pratt%2C%20Jay%22%29&pagesize-30">Pratt, Jay,
search?q=%2Bpublisher%3A%22University%20of%20Toronto%22%20%2Bcontributor%3A%28%22Psychology%22%29&pagesize-30">Psychology.
Subjects/Keywords: Attention; Distraction; EEG; Suppression; Visual Search; 0633
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Williams, R. S. (2017). “Don’t Look Down”: Alpha-Band Activity Reveals Selection Prior to Suppression of to-be-Ignored Locations. (Masters Thesis). University of Toronto. Retrieved from http://hdl.handle.net/1807/79439
Chicago Manual of Style (16th Edition):
Williams, Ryan Scott. ““Don’t Look Down”: Alpha-Band Activity Reveals Selection Prior to Suppression of to-be-Ignored Locations.” 2017. Masters Thesis, University of Toronto. Accessed February 27, 2021.
http://hdl.handle.net/1807/79439.
MLA Handbook (7th Edition):
Williams, Ryan Scott. ““Don’t Look Down”: Alpha-Band Activity Reveals Selection Prior to Suppression of to-be-Ignored Locations.” 2017. Web. 27 Feb 2021.
Vancouver:
Williams RS. “Don’t Look Down”: Alpha-Band Activity Reveals Selection Prior to Suppression of to-be-Ignored Locations. [Internet] [Masters thesis]. University of Toronto; 2017. [cited 2021 Feb 27].
Available from: http://hdl.handle.net/1807/79439.
Council of Science Editors:
Williams RS. “Don’t Look Down”: Alpha-Band Activity Reveals Selection Prior to Suppression of to-be-Ignored Locations. [Masters Thesis]. University of Toronto; 2017. Available from: http://hdl.handle.net/1807/79439

Univerzitet u Beogradu
17.
Gvozdenović, Vasilije P., 1971-.
Prostorno-vremenski činioci percepcije iluzornih
kontura.
Degree: Filozofski fakultet, 2014, Univerzitet u Beogradu
URL: https://fedorabg.bg.ac.rs/fedora/get/o:8110/bdef:Content/get
► Vizuelna percepcija - eksperimentalna psihologija / Visual perception - experimental psychology
Jedno od pitanja koje se može postaviti u vezi prirode procesa percepcije iluzornih kontura…
(more)
▼ Vizuelna percepcija - eksperimentalna psihologija /
Visual perception - experimental psychology
Jedno od pitanja koje se može postaviti u vezi
prirode procesa percepcije iluzornih kontura jeste nivo njihove
obrade. Fiziološke studije ubedljivo govore o tome da se ovaj
fenomen može tretirati kao osnovno svojstvo vizuelne stimulacije.
Primenom raznovrsnih tehnika registrovanja moždane aktivnosti,
neurofiziolozi su otkrili specijalizovane neurone u zoni vizuelnog
korteksa koji su osetljivi na iluzorne konture. Psihofizički,
fenomen ranog viđenja iluzornih kontura nije u potpunosti potvrđen.
U psihološkoj literaturi postoje suprostavljena stanovišta. Deo
eksperimenata govori u prilog tezi o ranom viđenju, dok drugi deo
govori suprotno. Jedna od problema našeg istraživanja je nivo
obrade iluzornih kontura, operacionalizovan kroz metodologiju
vizuelne pretrage. U okviru ovog problema proveravali smo i model
'vezivanja pozadinskih elemenata' koji je ponuđen kao jedno od
objašnjenja opažanja mete u osnovnim vizuelnim pretrsgama. Đrugi
problem rads prsdstavijs ispitivanje vremenskih karakteristika
faktora koji utiču na pretraživanje mete. To su pre svega,
karakteristike mete i njena lokacija u setu vizuelne pretrage.
Posebna tema istraživanja bilo je utvrđivanje vremenskog perioda
potrebnog za formiranje percepta iluzorne figure. Razvijena je
specifična eksperimentalna tehnika kojom smo ovaj period utvrdili.
U suprotnosti sa jednim delom psihofizičkih istraživanja, naše
istraživanje je pokazalo da se iluzorne konture ne mogu obrađivati
na nivou ranog viđenja. Međusobnim poređenjem uloge karakteristike
i lokacije mete, utvrdili smo da je lokacija ima važniju ali ne i
nezavisnu ulogu od uloge karakteristike mete. Kritično vreme,
potrebno za kompletiranje percepta iluzornih kontura iznosi oko 150
ms. Takođe, pokazalo se da su svi faktori, obuhvaćeni našim
istraživanjem relativno nezavisni od dejstava prostornih činilaca
stimulusne organizacije.
Advisors/Committee Members: search?q=%2Bpublisher%3A%22Univerzitet%20u%20Beogradu%22%20%2Bcontributor%3A%28%22Todorovi%C3%84%C2%87%2C%20Dejan%22%29&pagesize-30">Todorović, Dejan.
Subjects/Keywords: illusory contours; early vision; visual search;
priming
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Gvozdenović, Vasilije P., 1. (2014). Prostorno-vremenski činioci percepcije iluzornih
kontura. (Thesis). Univerzitet u Beogradu. Retrieved from https://fedorabg.bg.ac.rs/fedora/get/o:8110/bdef:Content/get
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Gvozdenović, Vasilije P., 1971-. “Prostorno-vremenski činioci percepcije iluzornih
kontura.” 2014. Thesis, Univerzitet u Beogradu. Accessed February 27, 2021.
https://fedorabg.bg.ac.rs/fedora/get/o:8110/bdef:Content/get.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Gvozdenović, Vasilije P., 1971-. “Prostorno-vremenski činioci percepcije iluzornih
kontura.” 2014. Web. 27 Feb 2021.
Vancouver:
Gvozdenović, Vasilije P. 1. Prostorno-vremenski činioci percepcije iluzornih
kontura. [Internet] [Thesis]. Univerzitet u Beogradu; 2014. [cited 2021 Feb 27].
Available from: https://fedorabg.bg.ac.rs/fedora/get/o:8110/bdef:Content/get.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Gvozdenović, Vasilije P. 1. Prostorno-vremenski činioci percepcije iluzornih
kontura. [Thesis]. Univerzitet u Beogradu; 2014. Available from: https://fedorabg.bg.ac.rs/fedora/get/o:8110/bdef:Content/get
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Illinois – Urbana-Champaign
18.
Ballew, Kirk Michael.
Exploring the roles of display properties and display memorability in the contextual cueing task.
Degree: MS, Psychology, 2020, University of Illinois – Urbana-Champaign
URL: http://hdl.handle.net/2142/108433
► An underlying assumption of contextual cueing experiments is that repetition of a display will elicit contextual cueing, irrespective of the particular arrangement of items in…
(more)
▼ An underlying assumption of contextual cueing experiments is that repetition of a display will elicit contextual cueing, irrespective of the particular arrangement of items in the display. However, there is reason to doubt this assumption; a number of display properties have been shown to predict response times in
visual search experiments, including target eccentricity, target quadrant,
visual crowding, and
visual clutter. The effects of display properties may therefore limit the interpretability of contextual cueing effects that do not control for differences in these variables. Further, display properties may be linked to the memorability of a display. If this is the case, then it may be possible for displays with certain properties to facilitate or inhibit context learning, because such displays are more or less memorable. The present study sought to estimate the impact of the confounding influence of display properties on RTs in the contextual cueing task. A multiple regression analysis of a large contextual cueing data set confirmed that target eccentricity, target quadrant, and
visual clutter impact response times in the contextual cueing task. The first simulation study showed that significant group-level contextual cueing effects are unlikely to arise in the absence of context learning. However, display properties can influence the size of effects analyzed at the level of individual displays. A second simulation study investigated a variety of parameters that may influence RTs in the contextual cueing task. Surprisingly, the strength of association between display properties and display memorability was not predictive of contextual cueing. However, the mean of the memorability score distribution, the probability of a learned display showing an effect, and the magnitude of the effect were all predictive of contextual cueing. Crucially, interactions between these variables suggest that contextual cueing may reflect small effects that occur somewhat frequently or larger effects that occur infrequently, but not somewhere in between.
Advisors/Committee Members: search?q=%2Bpublisher%3A%22University%20of%20Illinois%26%23160%3B%26%238211%3B%20Urbana-Champaign%22%20%2Bcontributor%3A%28%22Lleras%2C%20Alejandro%22%29&pagesize-30">Lleras, Alejandro (advisor),
search?q=%2Bpublisher%3A%22University%20of%20Illinois%26%23160%3B%26%238211%3B%20Urbana-Champaign%22%20%2Bcontributor%3A%28%22Simons%2C%20Daniel%20J%22%29&pagesize-30">Simons, Daniel J (committee member).
Subjects/Keywords: contextual cueing; simulation; simulation study; visual search
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Ballew, K. M. (2020). Exploring the roles of display properties and display memorability in the contextual cueing task. (Thesis). University of Illinois – Urbana-Champaign. Retrieved from http://hdl.handle.net/2142/108433
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Ballew, Kirk Michael. “Exploring the roles of display properties and display memorability in the contextual cueing task.” 2020. Thesis, University of Illinois – Urbana-Champaign. Accessed February 27, 2021.
http://hdl.handle.net/2142/108433.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Ballew, Kirk Michael. “Exploring the roles of display properties and display memorability in the contextual cueing task.” 2020. Web. 27 Feb 2021.
Vancouver:
Ballew KM. Exploring the roles of display properties and display memorability in the contextual cueing task. [Internet] [Thesis]. University of Illinois – Urbana-Champaign; 2020. [cited 2021 Feb 27].
Available from: http://hdl.handle.net/2142/108433.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Ballew KM. Exploring the roles of display properties and display memorability in the contextual cueing task. [Thesis]. University of Illinois – Urbana-Champaign; 2020. Available from: http://hdl.handle.net/2142/108433
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Michigan Technological University
19.
Schreifels, Dave.
Visual Search in Naturalistic Imagery.
Degree: MS, Department of Cognitive and Learning Sciences, 2018, Michigan Technological University
URL: https://digitalcommons.mtu.edu/etdr/681
► Visual search has been extensively studied in the laboratory, yielding broad insights into how we search through and attend to the world around us.…
(more)
▼ Visual search has been extensively studied in the laboratory, yielding broad insights into how we
search through and attend to the world around us. In order to know if these insights are valid, however, this research must not be confined to the sanitized imagery typically found within the lab. Comparatively little research has been conducted on
visual search within naturalistic settings, and this gap must therefore be bridged in order to further our understanding of
visual search. Based on the results of Experiment 1, Experiment 2 was conducted to test three common effects observed in previous studies of
visual search: the effects of background complexity, target-background similarity, and target-distractor similarity on response time. Results show that these hypotheses carry over to the natural world, but also that there are other effects present not accounted for by current theories of
visual search. The argument is made for the modification of these theories to incorporate this naturalistic information.
Advisors/Committee Members: search?q=%2Bpublisher%3A%22Michigan%20Technological%20University%22%20%2Bcontributor%3A%28%22Shane%20T.%20Mueller%22%29&pagesize-30">Shane T. Mueller.
Subjects/Keywords: Visual Search; Naturalistic; Imagery; Vision; Attention; Psychology
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Schreifels, D. (2018). Visual Search in Naturalistic Imagery. (Masters Thesis). Michigan Technological University. Retrieved from https://digitalcommons.mtu.edu/etdr/681
Chicago Manual of Style (16th Edition):
Schreifels, Dave. “Visual Search in Naturalistic Imagery.” 2018. Masters Thesis, Michigan Technological University. Accessed February 27, 2021.
https://digitalcommons.mtu.edu/etdr/681.
MLA Handbook (7th Edition):
Schreifels, Dave. “Visual Search in Naturalistic Imagery.” 2018. Web. 27 Feb 2021.
Vancouver:
Schreifels D. Visual Search in Naturalistic Imagery. [Internet] [Masters thesis]. Michigan Technological University; 2018. [cited 2021 Feb 27].
Available from: https://digitalcommons.mtu.edu/etdr/681.
Council of Science Editors:
Schreifels D. Visual Search in Naturalistic Imagery. [Masters Thesis]. Michigan Technological University; 2018. Available from: https://digitalcommons.mtu.edu/etdr/681

University of Illinois – Urbana-Champaign
20.
Ang, Cher Wee.
Training and transfer of training in rapid visual search under high target-background similarity.
Degree: MA, 0338, 2013, University of Illinois – Urbana-Champaign
URL: http://hdl.handle.net/2142/42182
► Near-perfect transfer of training was observed in a previous study when participants trained to search for targets on camouflage backgrounds (high target-background similarity) were just…
(more)
▼ Near-perfect transfer of training was observed in a previous study when participants trained to
search for targets on camouflage backgrounds (high target-background similarity) were just as quick to find the camouflaged targets from a different set of images (Boot, Neider & Kramer, 2009). This was achieved in a free viewing paradigm. The unusually robust transfer suggested that participants were learning some general ability to recognize camouflaged targets rather than how each target image stood out against its corresponding background. To explore changes in attentional networks with training in an MRI environment in the future, a paradigm suitable for an fMRI study was tested to determine if the training and transfer benefits remained when using a rapid presentation
search paradigm that relies on covert attention. Two groups of participants were tested before and after training, and trained in either camouflage or non-camouflage background conditions. The results showed significant improvements with camouflage training and transfer benefits at the post-training camouflage background test, compared to the control group with non-camouflage training. Both groups were able to use covert attention to detect and recognize camouflaged targets in a brief display, and the camouflage training group transferred this skill to new image set.
Advisors/Committee Members: search?q=%2Bpublisher%3A%22University%20of%20Illinois%26%23160%3B%26%238211%3B%20Urbana-Champaign%22%20%2Bcontributor%3A%28%22Kramer%2C%20Arthur%20F.%22%29&pagesize-30">Kramer, Arthur F. (advisor).
Subjects/Keywords: Visual Search; Training; Transfer; Attention; Camouflage
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Ang, C. W. (2013). Training and transfer of training in rapid visual search under high target-background similarity. (Thesis). University of Illinois – Urbana-Champaign. Retrieved from http://hdl.handle.net/2142/42182
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Ang, Cher Wee. “Training and transfer of training in rapid visual search under high target-background similarity.” 2013. Thesis, University of Illinois – Urbana-Champaign. Accessed February 27, 2021.
http://hdl.handle.net/2142/42182.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Ang, Cher Wee. “Training and transfer of training in rapid visual search under high target-background similarity.” 2013. Web. 27 Feb 2021.
Vancouver:
Ang CW. Training and transfer of training in rapid visual search under high target-background similarity. [Internet] [Thesis]. University of Illinois – Urbana-Champaign; 2013. [cited 2021 Feb 27].
Available from: http://hdl.handle.net/2142/42182.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Ang CW. Training and transfer of training in rapid visual search under high target-background similarity. [Thesis]. University of Illinois – Urbana-Champaign; 2013. Available from: http://hdl.handle.net/2142/42182
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Clemson University
21.
Mcintyre, Scott.
APPLYING VISUAL ATTENTION THEORY TO TRANSPORTATION SAFETY RESEARCH AND DESIGN: EVALUATION OF ALTERNATIVE AUTOMOBILE REAR LIGHTING SYSTEMS.
Degree: PhD, Human Factors Psychology, 2012, Clemson University
URL: https://tigerprints.clemson.edu/all_dissertations/894
► This experiment applies methodologies and theories of visual search and attention to the subject of conspicuity in automobile rear lighting. Based on these theories, this…
(more)
▼ This experiment applies methodologies and theories of
visual search and attention to the
subject of conspicuity in automobile rear lighting. Based on these theories, this experiment has four goals. First, it is proposed that current research methods used to investigate rear lighting are inadequate and a proposed methodology based on the
visual search paradigm is introduced. Second, demonstrate that current rear lighting on automobiles does not effectively meet the stated purpose of regulators. Third, propose a more effective system for increasing the conspicuity of brake lamps. A fourth goal is to validate and extend previous simulator research on this same topic. This experiment demonstrates that detection of red automobile brake lamps will be improved if tail lamps are another color (amber) rather than red, as currently mandated. The experiment is an extension and validation of previous simulation studies. Results indicate that RT and error are reduced in detecting the presence and absence of red brake lamps with multiple lead vehicles when tail lamps are not red compared to current rear lighting which mandates red tail lamps. This performance improvement is attributed to parallel
visual processing that automatically segregates tail (amber) and brake (red) lamp colors into distractors and targets respectively.
Advisors/Committee Members: search?q=%2Bpublisher%3A%22Clemson%20University%22%20%2Bcontributor%3A%28%22Gugerty%2C%20Leo%22%29&pagesize-30">Gugerty, Leo,
search?q=%2Bpublisher%3A%22Clemson%20University%22%20%2Bcontributor%3A%28%22Muth%20%2C%20Eric%22%29&pagesize-30">Muth , Eric,
search?q=%2Bpublisher%3A%22Clemson%20University%22%20%2Bcontributor%3A%28%22Switzer%20%2C%20Fred%22%29&pagesize-30">Switzer , Fred,
search?q=%2Bpublisher%3A%22Clemson%20University%22%20%2Bcontributor%3A%28%22Tyrrell%20%2C%20Rick%22%29&pagesize-30">Tyrrell , Rick.
Subjects/Keywords: Attention; Transportation Safety; Visual Search; Psychology
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Mcintyre, S. (2012). APPLYING VISUAL ATTENTION THEORY TO TRANSPORTATION SAFETY RESEARCH AND DESIGN: EVALUATION OF ALTERNATIVE AUTOMOBILE REAR LIGHTING SYSTEMS. (Doctoral Dissertation). Clemson University. Retrieved from https://tigerprints.clemson.edu/all_dissertations/894
Chicago Manual of Style (16th Edition):
Mcintyre, Scott. “APPLYING VISUAL ATTENTION THEORY TO TRANSPORTATION SAFETY RESEARCH AND DESIGN: EVALUATION OF ALTERNATIVE AUTOMOBILE REAR LIGHTING SYSTEMS.” 2012. Doctoral Dissertation, Clemson University. Accessed February 27, 2021.
https://tigerprints.clemson.edu/all_dissertations/894.
MLA Handbook (7th Edition):
Mcintyre, Scott. “APPLYING VISUAL ATTENTION THEORY TO TRANSPORTATION SAFETY RESEARCH AND DESIGN: EVALUATION OF ALTERNATIVE AUTOMOBILE REAR LIGHTING SYSTEMS.” 2012. Web. 27 Feb 2021.
Vancouver:
Mcintyre S. APPLYING VISUAL ATTENTION THEORY TO TRANSPORTATION SAFETY RESEARCH AND DESIGN: EVALUATION OF ALTERNATIVE AUTOMOBILE REAR LIGHTING SYSTEMS. [Internet] [Doctoral dissertation]. Clemson University; 2012. [cited 2021 Feb 27].
Available from: https://tigerprints.clemson.edu/all_dissertations/894.
Council of Science Editors:
Mcintyre S. APPLYING VISUAL ATTENTION THEORY TO TRANSPORTATION SAFETY RESEARCH AND DESIGN: EVALUATION OF ALTERNATIVE AUTOMOBILE REAR LIGHTING SYSTEMS. [Doctoral Dissertation]. Clemson University; 2012. Available from: https://tigerprints.clemson.edu/all_dissertations/894

Louisiana State University
22.
Guevara Pinto, Juan D.
Constructing the Search Template: Episodic and Semantic Influences on Categorical Template Formation.
Degree: MA, Psychology, 2016, Louisiana State University
URL: etd-03312017-151949
;
https://digitalcommons.lsu.edu/gradschool_theses/4405
► Search efficiency is usually improved by presenting observers with highly detailed target cues (e.g., pictures). However, in the absence of accurate target cues, observers must…
(more)
▼ Search efficiency is usually improved by presenting observers with highly detailed target cues (e.g., pictures). However, in the absence of accurate target cues, observers must rely only on categorical information to find targets. Models of visual search suggest that guidance in a categorical search results from matching categorically-diagnostic target features in the search display to a top-down attentional set (i.e., the search template), but the mechanisms by which such attentional set is constructed have not been specified. The present investigation examined the influences of both semantic and episodic memory on search template formation. More precisely, the present study tested whether observers incorporated a recent experience with a target-category exemplar into their search template, instead of relying on long-term learned regularities about object categories (Experiment 1) or on the semantic context of the search display (Experiment 2). In both experiments participants completed a categorical search task (75% of trials) in conjunction with a dot-probe response task (25% of trials). The dot-probe response task assessed the contents of the search template by capturing spatial attention if the dot-probe was presented at an inconsistent location relative to objects matching the search template. In Experiment 1 it was shown that observers include recently encoded objects into their search templates, when given the opportunity to do so. Experiment 2, however, showed that observers rely on context semantics to construct categorical search templates, and they continue to do so in the presence of repeated target cues related to different contexts. These results suggest that observers can, and will, rely on episodic representations to construct categorical search templates when such representations are available, but only if no external cues (i.e., scene semantics) are present to identify criterial target feature.
Subjects/Keywords: visual search; episodic memory; semantic memory
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Guevara Pinto, J. D. (2016). Constructing the Search Template: Episodic and Semantic Influences on Categorical Template Formation. (Masters Thesis). Louisiana State University. Retrieved from etd-03312017-151949 ; https://digitalcommons.lsu.edu/gradschool_theses/4405
Chicago Manual of Style (16th Edition):
Guevara Pinto, Juan D. “Constructing the Search Template: Episodic and Semantic Influences on Categorical Template Formation.” 2016. Masters Thesis, Louisiana State University. Accessed February 27, 2021.
etd-03312017-151949 ; https://digitalcommons.lsu.edu/gradschool_theses/4405.
MLA Handbook (7th Edition):
Guevara Pinto, Juan D. “Constructing the Search Template: Episodic and Semantic Influences on Categorical Template Formation.” 2016. Web. 27 Feb 2021.
Vancouver:
Guevara Pinto JD. Constructing the Search Template: Episodic and Semantic Influences on Categorical Template Formation. [Internet] [Masters thesis]. Louisiana State University; 2016. [cited 2021 Feb 27].
Available from: etd-03312017-151949 ; https://digitalcommons.lsu.edu/gradschool_theses/4405.
Council of Science Editors:
Guevara Pinto JD. Constructing the Search Template: Episodic and Semantic Influences on Categorical Template Formation. [Masters Thesis]. Louisiana State University; 2016. Available from: etd-03312017-151949 ; https://digitalcommons.lsu.edu/gradschool_theses/4405

University of Cambridge
23.
Ramamoorthy, Nayantara.
Attentional Prioritisation of Another's Direct Gaze: Stimulus, Template, and Expectation.
Degree: PhD, 2021, University of Cambridge
URL: https://www.repository.cam.ac.uk/handle/1810/311171
► Another’s direct gaze, a crucial social cue, is presumed to be attentionally prioritised even in the presence of other gazes. Consistent with this notion is…
(more)
▼ Another’s direct gaze, a crucial social cue, is presumed to be attentionally prioritised even in the presence of other gazes. Consistent with this notion is the stare in the crowd effect (SITCE) — the finding that direct gazing eyes are often detected faster and more efficiently from among averted gazing ones than vice versa. An investigation of top-down influences on the SITCE, through pre-cues, revealed two dissociable effects, both in favour of direct gaze – one scaling with set size, unaffected by templates, and likely reflecting noisy parallel processing (Process 1), and the other, independent of set size, selectively applying prior knowledge to speed overall responses (Process 2) – taken as evidence for an obligatory direct gaze prior. Examination of initial saccade patterns to target gaze within this paradigm suggested ‘odd-one-out’ direct gaze does not attract exogenous attention – an averted gaze bias was revealed when task conditions highlighted gaze uniqueness, consistent with Predictive Coding models – rather, task goals may determine how expectation influences perception. Investigation of the mechanism underpinning gaze prioritisation in visual search found evidence for sophisticated socio-cognitive processing rather than simple feature-based templates — search for target eyes gazing at a salient object was more efficient than for eyes gazing away, the effect obscured by a pre-cue to target gaze. Finally, an exploration of whether autistic traits influence SITCE task performance revealed a similar tendency for individuals with higher autistic traits to preferentially select direct gaze targets over averted, both with and without top-down cues guiding attention, suggesting a propensity to apply direct gaze priors at least within the particular context of the SITCE. To conclude, findings from the present thesis reveal that a complex interplay of factors guides attentional prioritisation of direct gaze.
Subjects/Keywords: gaze perception; visual search; attentional prioritisation
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Ramamoorthy, N. (2021). Attentional Prioritisation of Another's Direct Gaze: Stimulus, Template, and Expectation. (Doctoral Dissertation). University of Cambridge. Retrieved from https://www.repository.cam.ac.uk/handle/1810/311171
Chicago Manual of Style (16th Edition):
Ramamoorthy, Nayantara. “Attentional Prioritisation of Another's Direct Gaze: Stimulus, Template, and Expectation.” 2021. Doctoral Dissertation, University of Cambridge. Accessed February 27, 2021.
https://www.repository.cam.ac.uk/handle/1810/311171.
MLA Handbook (7th Edition):
Ramamoorthy, Nayantara. “Attentional Prioritisation of Another's Direct Gaze: Stimulus, Template, and Expectation.” 2021. Web. 27 Feb 2021.
Vancouver:
Ramamoorthy N. Attentional Prioritisation of Another's Direct Gaze: Stimulus, Template, and Expectation. [Internet] [Doctoral dissertation]. University of Cambridge; 2021. [cited 2021 Feb 27].
Available from: https://www.repository.cam.ac.uk/handle/1810/311171.
Council of Science Editors:
Ramamoorthy N. Attentional Prioritisation of Another's Direct Gaze: Stimulus, Template, and Expectation. [Doctoral Dissertation]. University of Cambridge; 2021. Available from: https://www.repository.cam.ac.uk/handle/1810/311171
24.
Filipe, Ana Elisabete Chora.
As tarefas de busca visual da cor na avaliação perceção visual: um estudo exploratório com crianças com e sem necessidades educativas especiais.
Degree: 2015, Universidade de Évora
URL: https://www.rcaap.pt/detail.jsp?id=oai:dspace.uevora.pt:10174/16681
► A presente investigação traduziu-se na exploração da utilização das tarefas de busca visual na avaliação da perceção da cor em crianças, procurando saber se é…
(more)
▼ A presente investigação traduziu-se na exploração da utilização das tarefas de busca
visual na avaliação da perceção da cor em crianças, procurando saber se é possível objetivar algum dos construtos da felicidade. Para isso, partiu-se do pressuposto de que a busca
visual dijuntiva da cor é uma medida objetiva que permite indagar acerca do funcionamento mental (e.g., Fodor, 1985; Treisman, 1986, 1999; Colaço, 2005) e este, por sua vez, um indicador do bem estar subjetivo, como constructo da felicidade. Admitindo que a cor é uma característica que é processada de forma paralela, autónoma e pré-atentivamente, sendo apenas integrada numa fase posterior (Treisman & Gelade, 1980; Treisman, 1986; Wolfe, 1998), foram levadas a cabo duas experiências cujo objetivo era detetar o alvo entre distratores, presentes em cenários visuais digitais. Para a primeira experiência, utilizaram-se as assimetrias (Theeuwes, 1991; Treisman & Gormican, 1988; Wolfe, 2001) das cores azul e amarelo (pertencentes ao mesmo canal cor-oponente) e para a segunda experiência, utilizaram-se as cores verde e azul (pertencentes a diferentes pares cor-oponente).
A amostra, por conveniência e exploratória, foi constituída por 38 crianças de ambos os sexos (n = 38), entre os 6 e os 12 anos de idade (M = 9 anos), residentes no distrito de Santarém e que constituíram dois grupos: um grupo reuniu as crianças que beneficiavam de programas educativos especiais, dado estarem abrangidos pelo decreto lei nº 3/2008, de 7 janeiro, e um segundo grupo, onde as crianças não beneficiavam de qualquer apoio no que diz respeito à adaptação de currículos específicos, logo, sem necessidades educativas especiais.
Os resultados do modelo geral linear de medidas repetidas não mostraram diferenças significativas entre os grupos, mostrando apenas diferenças significativas dos tempos de reação médios no que ao processamento da cor diz respeito, independentemente do grupo a que pertenciam as crianças. Pode-se pensar que nas crianças com necessidades educativas especiais, a intervenção implícita no processo permitiu que o processamento de informação cor atingisse os tempos de reação esperados ou que as crianças com necessidades educativas especiais não apresentam dificuldades cognitivas de base; The
visual color
search tasks in the evaluation of
visual perception: An exploratory study with children with and without special educational needs
Abstract:
This research resulted in the exploration of the use of
visual search tasks in evaluating the perception of color in children, in order to know whether it is possible to objectify any happiness constructs. Therefore, we start with the assumption that the disjunctive
visual color
search is an objective measure that allows us to question the mental functioning (eg, Fodor, 1985; Treisman, 1986, 1999; Colaco, 2005) and this in turn, is an indicator of subjective well-being, and happiness of the construct. Assuming that the color is a feature that is processed in parallel, separate and pre-attentively and only integrated at a later stage…
Advisors/Committee Members: search?q=%2Bpublisher%3A%22Universidade%20de%20%26%23201%3Bvora%22%20%2Bcontributor%3A%28%22Cola%C3%83%C2%A7o%2C%20Nuno%20Miguel%20Rosa%20Valente%22%29&pagesize-30">Colaço, Nuno Miguel Rosa Valente.
Subjects/Keywords: Busca visual dijuntiva; Perceção visual; Cor; Felicidade; Disjunctive visual search; Visual perception; Color; Happiness
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Filipe, A. E. C. (2015). As tarefas de busca visual da cor na avaliação perceção visual: um estudo exploratório com crianças com e sem necessidades educativas especiais. (Thesis). Universidade de Évora. Retrieved from https://www.rcaap.pt/detail.jsp?id=oai:dspace.uevora.pt:10174/16681
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Filipe, Ana Elisabete Chora. “As tarefas de busca visual da cor na avaliação perceção visual: um estudo exploratório com crianças com e sem necessidades educativas especiais.” 2015. Thesis, Universidade de Évora. Accessed February 27, 2021.
https://www.rcaap.pt/detail.jsp?id=oai:dspace.uevora.pt:10174/16681.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Filipe, Ana Elisabete Chora. “As tarefas de busca visual da cor na avaliação perceção visual: um estudo exploratório com crianças com e sem necessidades educativas especiais.” 2015. Web. 27 Feb 2021.
Vancouver:
Filipe AEC. As tarefas de busca visual da cor na avaliação perceção visual: um estudo exploratório com crianças com e sem necessidades educativas especiais. [Internet] [Thesis]. Universidade de Évora; 2015. [cited 2021 Feb 27].
Available from: https://www.rcaap.pt/detail.jsp?id=oai:dspace.uevora.pt:10174/16681.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Filipe AEC. As tarefas de busca visual da cor na avaliação perceção visual: um estudo exploratório com crianças com e sem necessidades educativas especiais. [Thesis]. Universidade de Évora; 2015. Available from: https://www.rcaap.pt/detail.jsp?id=oai:dspace.uevora.pt:10174/16681
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Kansas State University
25.
Peterson, Jared Joel.
The
interaction between visual resolution and task-relevance in guiding
visual selective attention.
Degree: PhD, Department of Psychological
Sciences, 2018, Kansas State University
URL: http://hdl.handle.net/2097/39309
► Visual resolution (i.e., blur or clarity) is a natural aspect of vision. It has been used by film makers to direct their audience’s attention by…
(more)
▼ Visual resolution (i.e., blur or clarity) is a natural
aspect of vision. It has been used by film makers to direct their
audience’s attention by focusing the depth of field such that the
critical region in a scene is uniquely clear and the surrounding is
blurred. Resolution contrast can focus attention towards unique
clarity, as supported by previous eye tracking and
visual search
research (Enns & MacDonald, 2013; Kosara, Miksch, Hauser,
Schrammel, Giller, & Tscheligi, 2002; & McConkie, 2002;
Peterson, 2016; Smith & Tadmor, 2012). However, little is known
about how unique blur is involved in guiding attention (e.g.,
capture, repel, or be ignored). Peterson (2016) provided reaction
time (RT) evidence that blur is ignored by selective attention when
resolution is not task-relevant. Perhaps
visual resolution is a
search asymmetry where unique clarity can be used to guide
selective attention during
search, but unique blur cannot guide
attention. Yet, perhaps the RT evidence was not sensitive enough
with Peterson’s (2016) methodology to observe unique blur capturing
or repelling attention. Eye movements (e.g., letter first fixated)
may be more sensitive than RT as it measures blur and clarity’s
influence on guiding attention earlier in a trial.
The current
study conducted three experiments that investigated: a) how
visual
resolution guides attention when it is task-irrelevant (Exp. 1), b)
whether
visual resolution is a
search asymmetry, by manipulating
resolution’s task-relevance (Use Blur, Use Clarity, Do Not Use
Unique Blur or Clarity, & No Instructions) (Exp. 2), and c)
whether blur and/or clarity are processed preattentively or require
attention (Exp. 3). Experiments 1 and 2 manipulated blur and
clarity (Exp. 1 Resolution = Task-irrelevant & Exp. 2
Resolution = Task-relevant), during a rotated L and T
visual search
measuring RT and eye movements. Experiment 1 found with the more
sensitive eye movement measures that unique clarity strongly
captured attention while unique blur weakly repelled attention
towards nearby clarity (or clarity, especially that close to blur,
captured attention). Experiment 2 found evidence that
visual
resolution is not a
search asymmetry because the influence of
resolution on selective attention was contingent upon its
task-relevance, which theoretically supports the presence of a
reconfigurable resolution feature detector. Experiment 3 used a
feature
search for either blur or clarity (i.e., resolution was
task-relevant) and compared RT x Set Size
search slopes. Both
blurred and clear target present RT x Set Size
search slopes were ~
1 msec/item. The results strongly supported that blur and clarity
are both processed preattentively, and provided additional evidence
that resolution is not a
search asymmetry.
Overall, the current
studies shed light on how
visual resolution is processed and guides
selective attention. The results revealed that
visual resolution is
processed preattentively and has a dynamic relationship with
selective attention. Predicting how resolution will guide attention…
Advisors/Committee Members: search?q=%2Bpublisher%3A%22Kansas%20State%20University%22%20%2Bcontributor%3A%28%22Lester%20C.%20Loschky%22%29&pagesize-30">Lester C. Loschky.
Subjects/Keywords: Visual
resolution; Visual
selective attention; Visual
Blur; Visual
Search;
Task-relevance; Eye
movements
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Peterson, J. J. (2018). The
interaction between visual resolution and task-relevance in guiding
visual selective attention. (Doctoral Dissertation). Kansas State University. Retrieved from http://hdl.handle.net/2097/39309
Chicago Manual of Style (16th Edition):
Peterson, Jared Joel. “The
interaction between visual resolution and task-relevance in guiding
visual selective attention.” 2018. Doctoral Dissertation, Kansas State University. Accessed February 27, 2021.
http://hdl.handle.net/2097/39309.
MLA Handbook (7th Edition):
Peterson, Jared Joel. “The
interaction between visual resolution and task-relevance in guiding
visual selective attention.” 2018. Web. 27 Feb 2021.
Vancouver:
Peterson JJ. The
interaction between visual resolution and task-relevance in guiding
visual selective attention. [Internet] [Doctoral dissertation]. Kansas State University; 2018. [cited 2021 Feb 27].
Available from: http://hdl.handle.net/2097/39309.
Council of Science Editors:
Peterson JJ. The
interaction between visual resolution and task-relevance in guiding
visual selective attention. [Doctoral Dissertation]. Kansas State University; 2018. Available from: http://hdl.handle.net/2097/39309

Duke University
26.
Adamo, Stephen Hunter.
Grabbing Your Attention: The Impact of Finding a First Target in Multiple-Target Search
.
Degree: 2016, Duke University
URL: http://hdl.handle.net/10161/12255
► For over 50 years, the Satisfaction of Search effect, and more recently known as the Subsequent Search Miss (SSM) effect, has plagued the field…
(more)
▼ For over 50 years, the Satisfaction of
Search effect, and more recently known as the Subsequent
Search Miss (SSM) effect, has plagued the field of radiology. Defined as a decrease in additional target accuracy after detecting a prior target in a
visual search, SSM errors are known to underlie both real-world
search errors (e.g., a radiologist is more likely to miss a tumor if a different tumor was previously detected) and more simplified, lab-based
search errors (e.g., an observer is more likely to miss a target ‘T’ if a different target ‘T’ was previously detected). Unfortunately, little was known about this phenomenon’s cognitive underpinnings and SSM errors have proven difficult to eliminate. However, more recently, experimental research has provided evidence for three different theories of SSM errors: the Satisfaction account, the Perceptual Set account, and the Resource Depletion account. A series of studies examined performance in a multiple-target
visual search and aimed to provide support for the Resource Depletion account—a first target consumes cognitive resources leaving less available to process additional targets. To assess a potential mechanism underlying SSM errors, eye movements were recorded in a multiple-target
visual search and were used to explore whether a first target may result in an immediate decrease in second-target accuracy, which is known as an attentional blink. To determine whether other known attentional distractions amplified the effects of finding a first target has on second-target detection, distractors within the immediate vicinity of the targets (i.e., clutter) were measured and compared to accuracy for a second target. To better understand which characteristics of attention were impacted by detecting a first target, individual differences within four characteristics of attention were compared to second-target misses in a multiple-target
visual search. The results demonstrated that an attentional blink underlies SSM errors with a decrease in second-target accuracy from 135ms-405ms after detection or re-fixating a first target. The effects of clutter were exacerbated after finding a first target causing a greater decrease in second-target accuracy as clutter increased around a second-target. The attentional characteristics of modulation and vigilance were correlated with second- target misses and suggest that worse attentional modulation and vigilance are predictive of more second-target misses. Taken together, these result are used as the foundation to support a new theory of SSM errors, the Flux Capacitor theory. The Flux Capacitor theory predicts that once a target is found, it is maintained as an attentional template in working memory, which consumes attentional resources that could otherwise be used to detect additional targets. This theory not only proposes why attentional resources are consumed by a first target, but encompasses the research in support of all three SSM theories in an effort to establish a grand, unified theory of SSM errors.
Advisors/Committee Members: search?q=%2Bpublisher%3A%22Duke%20University%22%20%2Bcontributor%3A%28%22Mitroff%2C%20Stephen%20R%22%29&pagesize-30">Mitroff, Stephen R (advisor),
search?q=%2Bpublisher%3A%22Duke%20University%22%20%2Bcontributor%3A%28%22Egner%2C%20Tobias%22%29&pagesize-30">Egner, Tobias (advisor).
Subjects/Keywords: Cognitive psychology;
Attention;
Attentional Blink;
Subsequent Search Misses;
Visual Search
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Adamo, S. H. (2016). Grabbing Your Attention: The Impact of Finding a First Target in Multiple-Target Search
. (Thesis). Duke University. Retrieved from http://hdl.handle.net/10161/12255
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Adamo, Stephen Hunter. “Grabbing Your Attention: The Impact of Finding a First Target in Multiple-Target Search
.” 2016. Thesis, Duke University. Accessed February 27, 2021.
http://hdl.handle.net/10161/12255.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Adamo, Stephen Hunter. “Grabbing Your Attention: The Impact of Finding a First Target in Multiple-Target Search
.” 2016. Web. 27 Feb 2021.
Vancouver:
Adamo SH. Grabbing Your Attention: The Impact of Finding a First Target in Multiple-Target Search
. [Internet] [Thesis]. Duke University; 2016. [cited 2021 Feb 27].
Available from: http://hdl.handle.net/10161/12255.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Adamo SH. Grabbing Your Attention: The Impact of Finding a First Target in Multiple-Target Search
. [Thesis]. Duke University; 2016. Available from: http://hdl.handle.net/10161/12255
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of California – Irvine
27.
Winter, Amy Nicole.
Visual Search Does Not Fully Characterize Feature-Based Selective Attention: Evidence from the Centroid Paradigm.
Degree: Psychology, 2017, University of California – Irvine
URL: http://www.escholarship.org/uc/item/1707c8z7
► While the visual search task has been instrumental in the study of feature-based attention (i.e., how attentional mechanisms increase the salience of relevant features), no…
(more)
▼ While the visual search task has been instrumental in the study of feature-based attention (i.e., how attentional mechanisms increase the salience of relevant features), no single methodology can tell the whole story. This dissertation investigates the contributions that a complementary methodology, the centroid task, can make to our understanding of feature-based attention. The first chapter directly compares the search and centroid tasks. It replicates the expected search results, finding that performance is always worse for conjunctive targets than it is for feature targets. However, it reports a different pattern of centroid results: conjunctive target centroid judgments can actually outperform constituent-feature centroid judgments. The second chapter examines the role of target-distractor similarity in centroid estimations. It finds that, given sufficiently salient feature contrasts, conjunctive target conditions are better than or equal to both constituent-feature conditions, suggesting that there is not necessarily any cost to conjunctive centroid judgments. The third chapter reviews an equisalience analysis of an 8-item centroid task and an analogous 2-item task. The different equisalience functions for the two tasks suggest that they access information differently. Together, these chapters provide compelling evidence that the centroid paradigm allows us to study aspects of feature-based attention that visual search cannot capture.
Subjects/Keywords: Psychology; centroid; feature-based attention; visual attention; visual search
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Winter, A. N. (2017). Visual Search Does Not Fully Characterize Feature-Based Selective Attention: Evidence from the Centroid Paradigm. (Thesis). University of California – Irvine. Retrieved from http://www.escholarship.org/uc/item/1707c8z7
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Winter, Amy Nicole. “Visual Search Does Not Fully Characterize Feature-Based Selective Attention: Evidence from the Centroid Paradigm.” 2017. Thesis, University of California – Irvine. Accessed February 27, 2021.
http://www.escholarship.org/uc/item/1707c8z7.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Winter, Amy Nicole. “Visual Search Does Not Fully Characterize Feature-Based Selective Attention: Evidence from the Centroid Paradigm.” 2017. Web. 27 Feb 2021.
Vancouver:
Winter AN. Visual Search Does Not Fully Characterize Feature-Based Selective Attention: Evidence from the Centroid Paradigm. [Internet] [Thesis]. University of California – Irvine; 2017. [cited 2021 Feb 27].
Available from: http://www.escholarship.org/uc/item/1707c8z7.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Winter AN. Visual Search Does Not Fully Characterize Feature-Based Selective Attention: Evidence from the Centroid Paradigm. [Thesis]. University of California – Irvine; 2017. Available from: http://www.escholarship.org/uc/item/1707c8z7
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Vanderbilt University
28.
Arita, Jason Tadashi.
Templates for rejection: Configuring attention to ignore task-irrelevant features.
Degree: MS, Psychology, 2012, Vanderbilt University
URL: http://hdl.handle.net/1803/10926
► Theories of attention are compatible with the idea that we can bias attention to avoid selecting objects that have known nontarget features. Although this may…
(more)
▼ Theories of attention are compatible with the idea that we can bias attention to avoid selecting objects that have known nontarget features. Although this may underlie several existing phenomena, the explicit guidance of attention away from known nontargets has yet to be demonstrated. Here we show that observers can use feature cues (i.e., color) to bias attention away from nontarget items during
visual search. These negative cues were used to quickly instantiate a template for rejection that reliably facilitated
search across the cue-to-
search stimulus onset asynchronies (SOAs), although negative cues were not as potent as cues that guide attention toward target features. Furthermore, by varying the
search set size we show a template for rejection is increasingly effective in facilitating
search as scene complexity increases. Our findings demonstrate that knowing what not to look for can be used to configure attention to avoid certain features, complimenting what is known about setting attention to select certain target features.
Advisors/Committee Members: search?q=%2Bpublisher%3A%22Vanderbilt%20University%22%20%2Bcontributor%3A%28%22Sean%20M.%20Polyn%22%29&pagesize-30">Sean M. Polyn (committee member),
search?q=%2Bpublisher%3A%22Vanderbilt%20University%22%20%2Bcontributor%3A%28%22Geoffrey%20F.%20Woodman%22%29&pagesize-30">Geoffrey F. Woodman (Committee Chair).
Subjects/Keywords: visual attention; working memory; memory template; visual search; attention
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Arita, J. T. (2012). Templates for rejection: Configuring attention to ignore task-irrelevant features. (Thesis). Vanderbilt University. Retrieved from http://hdl.handle.net/1803/10926
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Arita, Jason Tadashi. “Templates for rejection: Configuring attention to ignore task-irrelevant features.” 2012. Thesis, Vanderbilt University. Accessed February 27, 2021.
http://hdl.handle.net/1803/10926.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Arita, Jason Tadashi. “Templates for rejection: Configuring attention to ignore task-irrelevant features.” 2012. Web. 27 Feb 2021.
Vancouver:
Arita JT. Templates for rejection: Configuring attention to ignore task-irrelevant features. [Internet] [Thesis]. Vanderbilt University; 2012. [cited 2021 Feb 27].
Available from: http://hdl.handle.net/1803/10926.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Arita JT. Templates for rejection: Configuring attention to ignore task-irrelevant features. [Thesis]. Vanderbilt University; 2012. Available from: http://hdl.handle.net/1803/10926
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
29.
Darling, Cale M.
Using preview information to facilitate complex visual search.
Degree: MS, Psychology, 2014, Georgia Tech
URL: http://hdl.handle.net/1853/53034
► The complex visual search involved in baggage screening requires operators to determine quickly whether a bag contains threatening objects that are embedded in a high…
(more)
▼ The complex
visual search involved in baggage screening requires operators to determine quickly whether a bag contains threatening objects that are embedded in a high degree of
visual clutter. Methods for calculating
visual clutter have been developed, and research has demonstrated the negative impact of clutter on
search performance. The current study examined whether leveraging
visual clutter information on the display during
search could improve baggage screening performance above and beyond the conventional screening process. Ninety undergraduates searched x-ray images of bags for weapon items in a low fidelity baggage screening simulation; two clutter-based preview conditions displayed a limited portion of the bag to the participant before the entire bag was displayed. Eye movement data confirmed that the preview process guided the participant's attention to the corresponding previewed region. However, analysis of the baggage screening performance data showed there were no significant benefits associated with either clutter-based preview conditions compared with a control condition in which the entire bag was displayed for the duration of the trial. Thus, the results suggest that using clutter-based preview to guide
visual attention does not substantially improve weapon detection performance. Despite this null effect, the current study provides additional evidence regarding the impact of
visual clutter on complex
search performance by demonstrating significant reductions in weapon detection accuracy and
search efficiency due to increasing levels of
visual clutter. Further research should explore methods for improving complex
visual search by considering the negative impacts of
visual clutter and ensuring that both attention guidance and object recognition processes are facilitated during
search.
Advisors/Committee Members: search?q=%2Bpublisher%3A%22Georgia%20Tech%22%20%2Bcontributor%3A%28%22Durso%2C%20Francis%20T.%22%29&pagesize-30">Durso, Francis T. (advisor),
search?q=%2Bpublisher%3A%22Georgia%20Tech%22%20%2Bcontributor%3A%28%22Walker%2C%20Bruce%20N.%22%29&pagesize-30">Walker, Bruce N. (committee member),
search?q=%2Bpublisher%3A%22Georgia%20Tech%22%20%2Bcontributor%3A%28%22Schumacher%2C%20Eric%20H.%22%29&pagesize-30">Schumacher, Eric H. (committee member).
Subjects/Keywords: Visual search; Visual clutter
…SUMMARY
The complex visual search involved in baggage screening requires operators to… …leveraging visual clutter information on the display during search
could improve baggage screening… …impact of visual clutter on complex search performance
by demonstrating significant reductions… …in weapon detection accuracy and search
efficiency due to increasing levels of visual… …clutter. Further research should explore
methods for improving complex visual search by…
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Darling, C. M. (2014). Using preview information to facilitate complex visual search. (Masters Thesis). Georgia Tech. Retrieved from http://hdl.handle.net/1853/53034
Chicago Manual of Style (16th Edition):
Darling, Cale M. “Using preview information to facilitate complex visual search.” 2014. Masters Thesis, Georgia Tech. Accessed February 27, 2021.
http://hdl.handle.net/1853/53034.
MLA Handbook (7th Edition):
Darling, Cale M. “Using preview information to facilitate complex visual search.” 2014. Web. 27 Feb 2021.
Vancouver:
Darling CM. Using preview information to facilitate complex visual search. [Internet] [Masters thesis]. Georgia Tech; 2014. [cited 2021 Feb 27].
Available from: http://hdl.handle.net/1853/53034.
Council of Science Editors:
Darling CM. Using preview information to facilitate complex visual search. [Masters Thesis]. Georgia Tech; 2014. Available from: http://hdl.handle.net/1853/53034

University of Waterloo
30.
Malcolmson, Kelly.
Towards a Theory of Visual Concealment.
Degree: 2010, University of Waterloo
URL: http://hdl.handle.net/10012/5394
► The goal of this dissertation is to take initial steps towards understanding concealment behaviour and ultimately developing a theory of visual concealment. Since there are…
(more)
▼ The goal of this dissertation is to take initial steps towards understanding concealment behaviour and ultimately developing a theory of visual concealment. Since there are relatively few studies of concealment in the literature and given the natural relationship between search and concealment, five strategies used in the development of traditional visual search theory and scene-based search theory were applied to the study of concealment. These strategies are: 1) establish a methodology, 2) identify dimensions, 3) categorize dimensions, 4) prioritize dimensions, and 5) integrate results into a theoretical framework that may involve inferences about the mechanisms involved. In Chapter 2, participants placed target objects within luggage in locations that were easy or hard to find (i.e., the placement task). Participants’ subjective reports of their thought processes and strategies were analyzed to identify dimensions that are important during concealment in real-world settings. Once a list of dimensions was generated, the dimensions were then categorized into three categories: Stimulus Properties dimensions such as visual similarity, Embodiment dimensions such as confrontation, and Higher Order dimensions such as schema. In Chapter 3, the dimensions uncovered in Chapter 2 were used in a forced-choice task, and participants’ choices were evaluated to determine whether the dimensions affected hiding behaviour. To further develop the methodological techniques available to study concealment behaviour and to examine the generalizability of previous findings, in Chapter 4, the placement task was used in another context – an office environment – and the locations chosen by participants to make objects easy or hard to find were coded on relevant dimensions. In Chapter 5, an initial attempt was made to prioritize the dimensions. The forced-choice task was used in a new way to explore the relative importance of the dimensions by examining which dimensions participants chose to use over other dimensions. Finally in the General Discussion in Chapter 6, an attempt was made to integrate available results and previous theories and to make inferences about the mechanisms involved in visual concealment. Methodological considerations and future directions for the study of visual concealment are also discussed.
Subjects/Keywords: visual concealment; hiding; visual search
Record Details
Similar Records
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Share »
Record Details
Similar Records
Cite
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Malcolmson, K. (2010). Towards a Theory of Visual Concealment. (Thesis). University of Waterloo. Retrieved from http://hdl.handle.net/10012/5394
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Malcolmson, Kelly. “Towards a Theory of Visual Concealment.” 2010. Thesis, University of Waterloo. Accessed February 27, 2021.
http://hdl.handle.net/10012/5394.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Malcolmson, Kelly. “Towards a Theory of Visual Concealment.” 2010. Web. 27 Feb 2021.
Vancouver:
Malcolmson K. Towards a Theory of Visual Concealment. [Internet] [Thesis]. University of Waterloo; 2010. [cited 2021 Feb 27].
Available from: http://hdl.handle.net/10012/5394.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Malcolmson K. Towards a Theory of Visual Concealment. [Thesis]. University of Waterloo; 2010. Available from: http://hdl.handle.net/10012/5394
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
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