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McMaster University
1.
Marshall, Rachèle.
EXTRA-PERSONAL GAZE INFLUENCES ON THE EYE TO HAND SPATIAL INTERFERENCE EFFECT.
Degree: MSin Kinesiology, 2015, McMaster University
URL: http://hdl.handle.net/11375/18373
► An examination into the influence of observed gaze cues on motor output.
Richardson and colleagues (2013) demonstrated oculo-manual spatial interference by finding that the finger…
(more)
▼ An examination into the influence of observed gaze cues on motor output.
Richardson and colleagues (2013) demonstrated oculo-manual spatial interference by finding that the finger trajectory in a vertical tapping task deviated toward the direction of a concurrent saccade. It was proposed that the entrainment of the hand to the eyes was in part a function of generalized motor planning. Human action observation research has shown that cortical motor planning is also active during action observation (e.g. Buccino et al. 2001; Decety et al. 1997), which can lead to other forms of spatial interference (Kilner et al 2003). We hypothesized that because motor planning subserves both observation and execution of action, simply observing the horizontal saccades of another person would cause sufficient recruitment of oculomotor planning structures, that would result in finger tap trajectory deviations toward the direction of the observed saccade (but would not do so in a non-biological observation control condition).19 participants performed 24 trials of vertical finger taps under three different visual conditions. They were required to: a) saccade horizontally between targets; b) fixate on a biological stimulus (i.e. a video of horizontally saccading human eyes); or c) fixate on a non-biological control stimulus (horizontally moving black dots) while tapping their finger to an auditory metronome beat presented at a 750ms intervals. Results from the saccading condition replicate Richardson et al’s (2013) entrainment effect. That is, finger taps deviated to the left when participants saccaded left, and to the right when executed with a rightward saccade. Contrary to expectations however, there was no entrainment induced by observing either the biological stimulus or the control stimulus. This suggests that competing motor plans (eyes and hands) are necessary to induce interference. Further, simply observing eye movements do not recruit the same oculomotor planning networks as action execution.
Thesis
Master of Science in Kinesiology
Advisors/Committee Members: Lyons, James, Kinesiology.
Subjects/Keywords: Motor Control
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Chicago ·
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APA (6th Edition):
Marshall, R. (2015). EXTRA-PERSONAL GAZE INFLUENCES ON THE EYE TO HAND SPATIAL INTERFERENCE EFFECT. (Masters Thesis). McMaster University. Retrieved from http://hdl.handle.net/11375/18373
Chicago Manual of Style (16th Edition):
Marshall, Rachèle. “EXTRA-PERSONAL GAZE INFLUENCES ON THE EYE TO HAND SPATIAL INTERFERENCE EFFECT.” 2015. Masters Thesis, McMaster University. Accessed March 04, 2021.
http://hdl.handle.net/11375/18373.
MLA Handbook (7th Edition):
Marshall, Rachèle. “EXTRA-PERSONAL GAZE INFLUENCES ON THE EYE TO HAND SPATIAL INTERFERENCE EFFECT.” 2015. Web. 04 Mar 2021.
Vancouver:
Marshall R. EXTRA-PERSONAL GAZE INFLUENCES ON THE EYE TO HAND SPATIAL INTERFERENCE EFFECT. [Internet] [Masters thesis]. McMaster University; 2015. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/11375/18373.
Council of Science Editors:
Marshall R. EXTRA-PERSONAL GAZE INFLUENCES ON THE EYE TO HAND SPATIAL INTERFERENCE EFFECT. [Masters Thesis]. McMaster University; 2015. Available from: http://hdl.handle.net/11375/18373

Queens University
2.
Stewart, Brandie.
Investigating Motor Encoding of Potential Reach Targets
.
Degree: Neuroscience Studies, 2015, Queens University
URL: http://hdl.handle.net/1974/13766
► Neurophysiological and behavioural research has suggested that multiple potential actions are represented simultaneously. For example, neural activity associated with multiple potential actions has been observed…
(more)
▼ Neurophysiological and behavioural research has suggested that multiple potential actions are represented simultaneously. For example, neural activity associated with multiple potential actions has been observed in premotor structures of monkeys. Also, when humans are presented with two potential reach targets, they initially aim their reach toward the midpoint, or spatial average, of the targets. Within the context of the neurophysiological findings, it has been suggested that this ‘spatial averaging’ phenomena reflects competing neural activity associated with multiple motor plans being implemented simultaneously. However, it is also possible that the initial trajectory represents a perceptual average of spatial locations. The goal of this thesis was to examine these two accounts of spatial averaging. An initial experiment tested the idea that multiple motor plans specifying multiple motor parameters are prepared simultaneously. Participant's reached toward multiple potential targets, one of which was cued after movement onset as the movement target, that varied in location and orientation. Hand direction and orientation were found to be biased by both the spatial distribution and orientation; suggesting that fully specified motor plans are prepared simultaneously to potential targets. The second experiment tested whether spatial averaging behaviour reflects the use of a perceptual representation or a motor representation of potential targets. Participants preformed a rapid reaching task in which an obstacle blocked the movement to one of two potential targets. The initial movement direction was found to be a weighted average of the movement directions to each target; as opposed to being an average of the target locations. In chapter four, a visuomotor adaptation task in which individuals learned to produce identical movements to two separate visual targets allowed the perceptual representation and the motor representation of the targets to be dissociated and the predictions of each account to be tested separately. The initial movement direction was shifted in the direction of the adaptation; providing support for the idea that multiple motor plans are computed simultaneously. Taken together, the results presented herein provide support for the idea that the brain prepares multiple movement plans in advance of deciding between potential actions.
Subjects/Keywords: Motor Control
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Stewart, B. (2015). Investigating Motor Encoding of Potential Reach Targets
. (Thesis). Queens University. Retrieved from http://hdl.handle.net/1974/13766
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):
Stewart, Brandie. “Investigating Motor Encoding of Potential Reach Targets
.” 2015. Thesis, Queens University. Accessed March 04, 2021.
http://hdl.handle.net/1974/13766.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Stewart, Brandie. “Investigating Motor Encoding of Potential Reach Targets
.” 2015. Web. 04 Mar 2021.
Vancouver:
Stewart B. Investigating Motor Encoding of Potential Reach Targets
. [Internet] [Thesis]. Queens University; 2015. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/1974/13766.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Stewart B. Investigating Motor Encoding of Potential Reach Targets
. [Thesis]. Queens University; 2015. Available from: http://hdl.handle.net/1974/13766
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
3.
Johnson, Sara.
Locomotor Skill Development in Response to an Electronic Visual Exercise System in Children with Sensory Impairments.
Degree: MS, Exercise and Sport Science, 2017, Encompass Digital Archive, Eastern Kentucky University
URL: https://encompass.eku.edu/etd/534
► Children with sensory impairments associated with a physical or intellectual disability often have delay in fundamental motor skill development. The dual purpose of this…
(more)
▼ Children with sensory impairments associated with a physical or intellectual disability often have delay in fundamental motor skill development. The dual purpose of this study was to observe locomotor skill development, in response to an electronic visual exercise system, as well as interrater reliability of the assessment method. Eight children between the ages of seven and fourteen were recruited from an adapted physical education program. Pre-and post-test analysis of data collected via the Test of Gross Motor Development - Second Edition revealed no significant changes in motor skill development. Interrater reliability statistical analysis revealed a strong ICC value, suggesting excellent interrater reliability of the Test of Gross Motor Development- Second Edition.
Subjects/Keywords: Motor Control
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Johnson, S. (2017). Locomotor Skill Development in Response to an Electronic Visual Exercise System in Children with Sensory Impairments. (Masters Thesis). Encompass Digital Archive, Eastern Kentucky University. Retrieved from https://encompass.eku.edu/etd/534
Chicago Manual of Style (16th Edition):
Johnson, Sara. “Locomotor Skill Development in Response to an Electronic Visual Exercise System in Children with Sensory Impairments.” 2017. Masters Thesis, Encompass Digital Archive, Eastern Kentucky University. Accessed March 04, 2021.
https://encompass.eku.edu/etd/534.
MLA Handbook (7th Edition):
Johnson, Sara. “Locomotor Skill Development in Response to an Electronic Visual Exercise System in Children with Sensory Impairments.” 2017. Web. 04 Mar 2021.
Vancouver:
Johnson S. Locomotor Skill Development in Response to an Electronic Visual Exercise System in Children with Sensory Impairments. [Internet] [Masters thesis]. Encompass Digital Archive, Eastern Kentucky University; 2017. [cited 2021 Mar 04].
Available from: https://encompass.eku.edu/etd/534.
Council of Science Editors:
Johnson S. Locomotor Skill Development in Response to an Electronic Visual Exercise System in Children with Sensory Impairments. [Masters Thesis]. Encompass Digital Archive, Eastern Kentucky University; 2017. Available from: https://encompass.eku.edu/etd/534

Queens University
4.
Markovik, Simona.
Rapid Adaptation of Reactive Force Control When Lifting Objects
.
Degree: Neuroscience Studies, 2013, Queens University
URL: http://hdl.handle.net/1974/7802
► The control of object manipulation tasks involves the close interplay of predictive and reactive control mechanisms. For example, when lifting an object, people typically predict…
(more)
▼ The control of object manipulation tasks involves the close interplay of predictive and reactive control mechanisms. For example, when lifting an object, people typically predict the weight based on object size and material as well as sensorimotor memory obtained from previous lifts of the object. When lifting objects with a precision grip, people increase vertical load force to a target level that slightly exceeds the predicted weight. When the object is heavier than expected, the mismatch between expected and actual tactile signals associated with lift-off triggers a corrective action within ~100 ms, that involves probing increases in load force that continue until the object is lifted. Here we investigated whether this correction action can be adaptively influenced by experience. Participants repeatedly lifted an object that was instrumented with force sensors to measure the forces applied by the fingertips, with weight that could be varied without the knowledge of the participant. In 80% of trials, the weight was set to 2 N and, in different blocks of 110 trials, the remaining 20 % of trials (2 trials randomly selected from each successive 10 trials) was set to either 4 or 6 N. We found that the rate of change of the reflexively triggered increase in load force that occurred in the 4 or 6 N trials, scaled with the additional weight. That is, following the initial increase in load force to ~2 N, the subsequent increase in load force was more rapid for the 6 N object than the 4 N object. In contrast, the onset time of the reactive increase in load force was independent of the additional weight. Finally, this adaptation of reactive load force control took place quickly and was evident after only a few lifts of the heavier weight. These results indicate that the reactive increases in load force that occur when a lifted object is heavier than expected can be adapted and tuned, to refine behavior. This further suggests that multiple predictions can be generated about object weight when lifting.
Subjects/Keywords: Precision Grip
;
Reactive Motor Control
;
Motor Control
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Markovik, S. (2013). Rapid Adaptation of Reactive Force Control When Lifting Objects
. (Thesis). Queens University. Retrieved from http://hdl.handle.net/1974/7802
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):
Markovik, Simona. “Rapid Adaptation of Reactive Force Control When Lifting Objects
.” 2013. Thesis, Queens University. Accessed March 04, 2021.
http://hdl.handle.net/1974/7802.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Markovik, Simona. “Rapid Adaptation of Reactive Force Control When Lifting Objects
.” 2013. Web. 04 Mar 2021.
Vancouver:
Markovik S. Rapid Adaptation of Reactive Force Control When Lifting Objects
. [Internet] [Thesis]. Queens University; 2013. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/1974/7802.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Markovik S. Rapid Adaptation of Reactive Force Control When Lifting Objects
. [Thesis]. Queens University; 2013. Available from: http://hdl.handle.net/1974/7802
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Texas – Austin
5.
Devine, Mary Rose.
Two-dimensional models of goal-oriented trial-to-trial error correction dynamics for a redundant goal : a constructive comparison.
Degree: MSin Kinesiology, Kinesiology, 2016, University of Texas – Austin
URL: http://hdl.handle.net/2152/41706
► Human movements are variable, even in well-learned, controlled tasks of repeated movements. Simple models of repeated movements help us understand how the control of movements…
(more)
▼ Human movements are variable, even in well-learned, controlled tasks of repeated movements. Simple models of repeated movements help us understand how the
control of movements and the inherent noise in a system interact and influence the measurable variability in the outcome movements (the task). Here, we compare contemporary models for correcting repeated movements in the presence of noise, with a redundant goal (i.e. one that has many solutions) in the two dimensional task space. We show that the models share a similar structure, and explain their differences in noise processes. We compare simulations of model behavior to data from a previously published reaching task, to understand what features of the models we need in general. Ultimately, our simulations show that the correction or controller with free parameters in two independent directions is necessary to describe two-dimensional tasks in general. However, we cannot conclude in favor of one model over the other, because simulations also show that either of the different noise processes is sufficient.
Advisors/Committee Members: Dingwell, Jonathan B. (advisor).
Subjects/Keywords: Redundancy; Motor Control
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Devine, M. R. (2016). Two-dimensional models of goal-oriented trial-to-trial error correction dynamics for a redundant goal : a constructive comparison. (Masters Thesis). University of Texas – Austin. Retrieved from http://hdl.handle.net/2152/41706
Chicago Manual of Style (16th Edition):
Devine, Mary Rose. “Two-dimensional models of goal-oriented trial-to-trial error correction dynamics for a redundant goal : a constructive comparison.” 2016. Masters Thesis, University of Texas – Austin. Accessed March 04, 2021.
http://hdl.handle.net/2152/41706.
MLA Handbook (7th Edition):
Devine, Mary Rose. “Two-dimensional models of goal-oriented trial-to-trial error correction dynamics for a redundant goal : a constructive comparison.” 2016. Web. 04 Mar 2021.
Vancouver:
Devine MR. Two-dimensional models of goal-oriented trial-to-trial error correction dynamics for a redundant goal : a constructive comparison. [Internet] [Masters thesis]. University of Texas – Austin; 2016. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/2152/41706.
Council of Science Editors:
Devine MR. Two-dimensional models of goal-oriented trial-to-trial error correction dynamics for a redundant goal : a constructive comparison. [Masters Thesis]. University of Texas – Austin; 2016. Available from: http://hdl.handle.net/2152/41706

Université Catholique de Louvain
6.
Cordova Bulens, David.
Using robust and optimal control theory to understand hand dominance and bimanual coordination.
Degree: 2017, Université Catholique de Louvain
URL: http://hdl.handle.net/2078.1/191769
► In this thesis, we study the neurophysiological basis of handedness or the individual preference for use of a hand, known as the dominant hand. Any…
(more)
▼ In this thesis, we study the neurophysiological basis of handedness or the individual preference for use of a hand, known as the dominant hand. Any motor task involves the decision of which arm to perform it with or how the two arms must coordinate. If using only one arm, humans show a preference to use their "dominant" arm, which is often more dexterous and skillful than the other one. Hand dominance also impacts bimanual coordination, as a different role is associated to each arm during a bimanual task. Such differences across the two arms cannot be explained based on anatomical aspects, since the two arms are equally strong and have the same freedom of movement. It has been reported that each arm has a specialized behavior, with the dominant arm having a better trajectory control and the non-dominant arm being more stable in front of perturbations. And yet it is still unclear why we have a dominant arm and what the neurophysiological basis of handedness is. Amounting evidence has highlighted the importance of feedback when performing skilled movements, however, there is no control framework able to account for the differences in performance across limbs. Given the importance of feedback in motor control, we suspected that handedness was likely related to distinct feedback control strategies. In this thesis, we use optimal and robust control theory to model different feedback control strategies, and show that such distinct strategies can capture the differences in behavior observed across the two arms. We also study how the central nervous system coordinates the two arms during a bimanual task. Using optimal control theory, we highlight the impact of the joint configuration of the upper-limbs on how the two arms share the effort during a bimanual task. We show that the arm with the best spatial relationship between effort and target goal is the arm that produces the most significant effort during a bimanual task. Altogether, the results of this thesis offer a new perspective on the differences in behavior across the two arms and highlight the fact that handedness arises from distinct feedback control strategies.
(FSA - Sciences de l'ingénieur) – UCL, 2017
Advisors/Committee Members: UCL - SST/ICTM/INMA - Pôle en ingénierie mathématique, UCL - SSS/IONS/COSY - Systems & cognitive Neuroscience, UCL - Ecole Polytechnique de Louvain, Lefèvre, Philippe, Crevecoeur, Frédéric, Thonnard, Jean-Louis, Jungers, Raphaël, Smeets, Jeroen, Scott, Stephen, White, Olivier.
Subjects/Keywords: Motor control; Optimal control; Robust control; Handedness
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Cordova Bulens, D. (2017). Using robust and optimal control theory to understand hand dominance and bimanual coordination. (Thesis). Université Catholique de Louvain. Retrieved from http://hdl.handle.net/2078.1/191769
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):
Cordova Bulens, David. “Using robust and optimal control theory to understand hand dominance and bimanual coordination.” 2017. Thesis, Université Catholique de Louvain. Accessed March 04, 2021.
http://hdl.handle.net/2078.1/191769.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Cordova Bulens, David. “Using robust and optimal control theory to understand hand dominance and bimanual coordination.” 2017. Web. 04 Mar 2021.
Vancouver:
Cordova Bulens D. Using robust and optimal control theory to understand hand dominance and bimanual coordination. [Internet] [Thesis]. Université Catholique de Louvain; 2017. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/2078.1/191769.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Cordova Bulens D. Using robust and optimal control theory to understand hand dominance and bimanual coordination. [Thesis]. Université Catholique de Louvain; 2017. Available from: http://hdl.handle.net/2078.1/191769
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Dalhousie University
7.
White, Justin.
The Influence of Colour on the Size-Weight Illusion:
Redefining Expectation.
Degree: MS, School of Health & Human Performance, 2010, Dalhousie University
URL: http://hdl.handle.net/10222/13032
► A size-weight illusion (SWI) occurs when a large object and small object of equal mass but different volume are lifted and the small object is…
(more)
▼ A size-weight illusion (SWI) occurs when a large
object and small object of equal mass but different volume are
lifted and the small object is perceived as heavier than the large
object. All previous studies of the SWI used similar coloured
objects and found that individuals initially use more force to lift
the large object, compared to the small object but then use similar
forces for the two objects on subsequent lifts. In contrast to the
change in lifting forces over trials, the perceptual illusion stays
consistent across all trials. The goal of the current study was to
determine if introducing different colours for the SWI stimuli
could alter participants’ expectations about the masses of the two
objects and therefore modify the perceptual SWI. Participants
lifted SWI stimuli that were either identical in colour or stimuli
of different colour.
Advisors/Committee Members: Dr. Shawn Boe (external-examiner), Dr. Anita Unruh (graduate-coordinator), Dr. John McCabe (thesis-reader), Dr. John Kozey (thesis-reader), Dr. David Westwood (thesis-supervisor), Received (ethics-approval), Not Applicable (manuscripts), Not Applicable (copyright-release).
Subjects/Keywords: Motor Control; Motor Learning; Action;
Perception
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
White, J. (2010). The Influence of Colour on the Size-Weight Illusion:
Redefining Expectation. (Masters Thesis). Dalhousie University. Retrieved from http://hdl.handle.net/10222/13032
Chicago Manual of Style (16th Edition):
White, Justin. “The Influence of Colour on the Size-Weight Illusion:
Redefining Expectation.” 2010. Masters Thesis, Dalhousie University. Accessed March 04, 2021.
http://hdl.handle.net/10222/13032.
MLA Handbook (7th Edition):
White, Justin. “The Influence of Colour on the Size-Weight Illusion:
Redefining Expectation.” 2010. Web. 04 Mar 2021.
Vancouver:
White J. The Influence of Colour on the Size-Weight Illusion:
Redefining Expectation. [Internet] [Masters thesis]. Dalhousie University; 2010. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/10222/13032.
Council of Science Editors:
White J. The Influence of Colour on the Size-Weight Illusion:
Redefining Expectation. [Masters Thesis]. Dalhousie University; 2010. Available from: http://hdl.handle.net/10222/13032

University of Melbourne
8.
FONG, JUSTIN.
Computational models of human motor movement and learning and their application to neurorehabilitation.
Degree: 2017, University of Melbourne
URL: http://hdl.handle.net/11343/192998
► Neurological impairment, commonly the result of stroke or traumatic brain injury, can have a devastating effect on lives of those who survive. This impairment can…
(more)
▼ Neurological impairment, commonly the result of stroke or traumatic brain injury, can have a devastating effect on lives of those who survive. This impairment can affect many capabilities including speech and reasoning, vision and movement. With 470,000 people in Australia currently living with the effects of stroke, and the expectation that this will rise due to our aging population, improving the efficiency and efficacy of neurorehabilitation is becoming more and more important.
Of interest in this work is the rehabilitation of motor control - that is, the recovery of basic motor function to allow the survivor to perform everyday activities such as eating, bathing and dressing; to return to work; or simply to reduce their reliance on carers and other services. The improvement of motor recovery can be aided through the investigation of models for motor control and learning, which may be leveraged to assess the presenting impairments, target specific impairments, or to develop rehabilitation exercises. Despite this promise, limited work has been done on the translation of existing models of movement for healthy persons, to those with neurological impairments.
This work therefore explores how computational models for motor control and learning may be developed and used for neurorehabilitation by:
1. Proposing a framework under which motor control, learning and recovery may be considered for neurologically impaired individuals
2. Proposing a model for motor adaptation applicable to neurologically-impaired individuals (including the proposal of appropriate algorithm which finds an iterative solution to the Finite Horizon Linear Quadratic Regulator problem)
3. Experimentally evaluating the model
Subjects/Keywords: neurorehabilitation; motor control; motor learning; stroke
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
FONG, J. (2017). Computational models of human motor movement and learning and their application to neurorehabilitation. (Doctoral Dissertation). University of Melbourne. Retrieved from http://hdl.handle.net/11343/192998
Chicago Manual of Style (16th Edition):
FONG, JUSTIN. “Computational models of human motor movement and learning and their application to neurorehabilitation.” 2017. Doctoral Dissertation, University of Melbourne. Accessed March 04, 2021.
http://hdl.handle.net/11343/192998.
MLA Handbook (7th Edition):
FONG, JUSTIN. “Computational models of human motor movement and learning and their application to neurorehabilitation.” 2017. Web. 04 Mar 2021.
Vancouver:
FONG J. Computational models of human motor movement and learning and their application to neurorehabilitation. [Internet] [Doctoral dissertation]. University of Melbourne; 2017. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/11343/192998.
Council of Science Editors:
FONG J. Computational models of human motor movement and learning and their application to neurorehabilitation. [Doctoral Dissertation]. University of Melbourne; 2017. Available from: http://hdl.handle.net/11343/192998

University of Windsor
9.
Shang, Zhi.
Simulation and Experiment for Induction Motor Control Strategies.
Degree: MA, Mechanical, Automotive, and Materials Engineering, 2011, University of Windsor
URL: https://scholar.uwindsor.ca/etd/5387
► The Induction motor has been widely used in industry and is considered as the best candidate for electrical vehicle (EV) applications due to its…
(more)
▼ The Induction
motor has been widely used in industry and is considered as the best candidate for electrical vehicle (EV) applications due to its advantages such as: simple design, ruggedness, and easy maintenance. However, the precise
control of induction
motor is not easy to achieve, because it is a complicated nonlinear system, the electric rotor variables are not measurable directly, and the physical parameters could change in different operating conditions. So the
control of an induction
motor becomes a critical issue, especially for the EV applications in which both fast transient responses and excellent steady state speed performance are required. Three induction
motor control algorithms (field orientation
control, conventional direct torque
control, and stator flux orientated sensorless direct torque
control) are introduced in this thesis and a specific comparison is given among three of them. The main focus of this work is to design an induction
motor control system using the three algorithms mentioned above, to analyze the performances of different
control methods, and to validate these algorithms experimentally, comparing the simulation and experimental results.
Advisors/Committee Members: Biao Zhou.
Subjects/Keywords: Asynchronous Motor; DTC; FOC; Motor Control
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Shang, Z. (2011). Simulation and Experiment for Induction Motor Control Strategies. (Masters Thesis). University of Windsor. Retrieved from https://scholar.uwindsor.ca/etd/5387
Chicago Manual of Style (16th Edition):
Shang, Zhi. “Simulation and Experiment for Induction Motor Control Strategies.” 2011. Masters Thesis, University of Windsor. Accessed March 04, 2021.
https://scholar.uwindsor.ca/etd/5387.
MLA Handbook (7th Edition):
Shang, Zhi. “Simulation and Experiment for Induction Motor Control Strategies.” 2011. Web. 04 Mar 2021.
Vancouver:
Shang Z. Simulation and Experiment for Induction Motor Control Strategies. [Internet] [Masters thesis]. University of Windsor; 2011. [cited 2021 Mar 04].
Available from: https://scholar.uwindsor.ca/etd/5387.
Council of Science Editors:
Shang Z. Simulation and Experiment for Induction Motor Control Strategies. [Masters Thesis]. University of Windsor; 2011. Available from: https://scholar.uwindsor.ca/etd/5387

Southern Illinois University
10.
Nolan, Russell Patrick.
An External Focus of Attention Enhances Isometric Wall Sit Endurance Time: A Quantitative and Qualitative Analysis of the Attentional Focus Effect.
Degree: MSin Education, Kinesiology, 2011, Southern Illinois University
URL: https://opensiuc.lib.siu.edu/theses/590
► Recently, attentional focus studies involving force production have demonstrated that when participants focused externally motor units were recruited more efficiently and muscular communication was…
(more)
▼ Recently, attentional focus studies involving force production have demonstrated that when participants focused externally
motor units were recruited more efficiently and muscular communication was enhanced. When participants focused internally, however, increased "noise" was incorporated into the neuromuscular system resulting in energy waste. The present study explored the effects of an external or internal focus of attention in the isometric wall sit endurance test. Since
motor unit recruitment is more efficient under an external focus, it was hypothesized that participants (n = 23) would have a higher endurance time when they focused externally (ex. I want you to focus on pretending like you are sitting in a chair through the duration of the trial) rather than internally (ex. I want you to focus on keeping your knee at 90 degrees through the duration of the trial). Results revealed when participants focused externally they had a significantly higher endurance time (68.41 ± 34.12 sec) than when they focused internally (60.22 ± 34.54 sec). Participants also adopted the correct attentional focus in a majority of the endurance trials (70% and 69% for the external and internal conditions, respectively). This was the first study to demonstrate the benefits of an external focus over an internal focus in an isometric wall sit endurance test. Future studies should use biomechanical analyses such as EMG and kinematic measures and perceived force measures such as RPE to explore the reasons why an external focus provided performance benefits.
Advisors/Committee Members: Porter, Jared.
Subjects/Keywords: Fatigue; Motor Control; Motor Learning; Verbal Instructions
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APA (6th Edition):
Nolan, R. P. (2011). An External Focus of Attention Enhances Isometric Wall Sit Endurance Time: A Quantitative and Qualitative Analysis of the Attentional Focus Effect. (Masters Thesis). Southern Illinois University. Retrieved from https://opensiuc.lib.siu.edu/theses/590
Chicago Manual of Style (16th Edition):
Nolan, Russell Patrick. “An External Focus of Attention Enhances Isometric Wall Sit Endurance Time: A Quantitative and Qualitative Analysis of the Attentional Focus Effect.” 2011. Masters Thesis, Southern Illinois University. Accessed March 04, 2021.
https://opensiuc.lib.siu.edu/theses/590.
MLA Handbook (7th Edition):
Nolan, Russell Patrick. “An External Focus of Attention Enhances Isometric Wall Sit Endurance Time: A Quantitative and Qualitative Analysis of the Attentional Focus Effect.” 2011. Web. 04 Mar 2021.
Vancouver:
Nolan RP. An External Focus of Attention Enhances Isometric Wall Sit Endurance Time: A Quantitative and Qualitative Analysis of the Attentional Focus Effect. [Internet] [Masters thesis]. Southern Illinois University; 2011. [cited 2021 Mar 04].
Available from: https://opensiuc.lib.siu.edu/theses/590.
Council of Science Editors:
Nolan RP. An External Focus of Attention Enhances Isometric Wall Sit Endurance Time: A Quantitative and Qualitative Analysis of the Attentional Focus Effect. [Masters Thesis]. Southern Illinois University; 2011. Available from: https://opensiuc.lib.siu.edu/theses/590

Queens University
11.
Pruszynski, Jedrzej (Andrew).
Investigating the Sophistication of Long-Latency Stretch Responses During Postural Control of the Upper Limb
.
Degree: Neuroscience Studies, 2011, Queens University
URL: http://hdl.handle.net/1974/6278
► A recent theory of motor control, based on optimal feedback control, posits that voluntary motor behaviour involves the sophisticated manipulation of sensory feedback. Although this…
(more)
▼ A recent theory of motor control, based on optimal feedback control, posits that voluntary motor behaviour involves the sophisticated manipulation of sensory feedback. Although this theory can explain how people move in the world, it does not specifically describe how this control process is implemented by the nervous system. In this thesis, we propose and explore one physiological implication of this theory. Specifically, we hypothesize that rapid feedback responses should possess the key functional attributes of voluntary control because these two systems share a common neural pathway through motor areas of cerebral cortex.
Our first four studies were designed to elaborate the functional attributes of the long-latency stretch reflex, a fast feedback response which occurs 50-100ms following the mechanical stretch of a muscle. Consistent with our hypothesis, we found that the
long-latency response possesses many attributes commonly reserved for voluntary
control: the long-latency response is continuously modulated by subject intent (Chapter 2), it compensates for the size-recruitment principle of the motoneuron pool (Chapter 3) and it accounts for the mechanical properties of the upper-limb (Chapter 5). Further investigation revealed that the long-latency response can be decomposed into two functionally-independent processes (Chapter 4), and that one of these components contributes all of the sophistication observed in Chapters 2 and 3.
The goal of our fifth study was to investigate the neural basis of the long-latency response (Chapter 6). Our results provide strong evidence from both single-neuron recordings in non-human primates and transcranial magnetic stimulation in humans that primary motor cortex, which is known to be a critical node for voluntary control, also contributes to the sophistication of the long-latency response.
Taken together, the studies presented in this thesis demonstrate that the long-
latency response possesses several functional attributes typically reserved for voluntary control and that this sophistication likely arises via a transcortical pathway through primary motor cortex.
Subjects/Keywords: Motor Control
;
Reflex
;
Feedback
;
Motor Cortex
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Pruszynski, J. (. (2011). Investigating the Sophistication of Long-Latency Stretch Responses During Postural Control of the Upper Limb
. (Thesis). Queens University. Retrieved from http://hdl.handle.net/1974/6278
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):
Pruszynski, Jedrzej (Andrew). “Investigating the Sophistication of Long-Latency Stretch Responses During Postural Control of the Upper Limb
.” 2011. Thesis, Queens University. Accessed March 04, 2021.
http://hdl.handle.net/1974/6278.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Pruszynski, Jedrzej (Andrew). “Investigating the Sophistication of Long-Latency Stretch Responses During Postural Control of the Upper Limb
.” 2011. Web. 04 Mar 2021.
Vancouver:
Pruszynski J(. Investigating the Sophistication of Long-Latency Stretch Responses During Postural Control of the Upper Limb
. [Internet] [Thesis]. Queens University; 2011. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/1974/6278.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Pruszynski J(. Investigating the Sophistication of Long-Latency Stretch Responses During Postural Control of the Upper Limb
. [Thesis]. Queens University; 2011. Available from: http://hdl.handle.net/1974/6278
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Universiteit Utrecht
12.
Gijssel, M.P.E.
Quantifying motor control of the lumbar spine by a dynamic sitting device; a pilot reliability study.
Degree: 2011, Universiteit Utrecht
URL: http://dspace.library.uu.nl:8080/handle/1874/209674
► Introduction: Nearly everyone is affected by low back pain at some point in time. The presence of pain can cause adaptive or protective altered movement…
(more)
▼ Introduction: Nearly everyone is affected by low back pain at some point in time. The presence of pain can cause adaptive or protective altered movement and
motor control impairments. Ongoing mal-adaptive
motor control behaviour can lead to a chronic state of pain. A significant cause of non specific chronic low back pain is lumbar segmental instability. Patients with lumbar segmental instability demonstrate an inability to reposition the lumbar spine accurately. A newly introduced dynamic sitting device measures how accurately a
subject completes different tracks by using lumbar stabilizing muscles, and thereby provides insight into the ability to coordinate lower back muscles. The present study was set up to estimate the reliability and agreement parameters over the test scores given by the TBT.
Methods: Four therapists tested six patients (mean age: 43,8 SD ±7,7 years) with low back pain, on two days with at three-week intervals. Whilst sitting on a dynamic sitting device the patients had to cover a presented track. The movements in the lower back were measured by a computer, the precision with which the movements were made was scored. The inter-rater reliability was calculated using intraclass correlation (ICC), test retest data were analyzed using a paired t-test for four different tracks.
Results: The number of completed cycles showed a good to excellent reliability (ICC: 0.87-0.90). Differences in time spent between opposite sides of the track gave good reliability scores (ICC: 0.72-0.97). Over three weeks a significant (p<0.05) improvement was found in the number of cycles covered.
Conclusion: It is legitimate to compare scores measured by different raters. This instrument seems useful to objectively quantify the ability to reposition the lumbar spine. Future research needs to focus on a larger sample size of patients with LBP to enforce knowledge about this instrument as a diagnostic device.
Advisors/Committee Members: Dankaerts, W., Takken, T..
Subjects/Keywords: motor; control; lumbar; spine; measurement
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Gijssel, M. P. E. (2011). Quantifying motor control of the lumbar spine by a dynamic sitting device; a pilot reliability study. (Masters Thesis). Universiteit Utrecht. Retrieved from http://dspace.library.uu.nl:8080/handle/1874/209674
Chicago Manual of Style (16th Edition):
Gijssel, M P E. “Quantifying motor control of the lumbar spine by a dynamic sitting device; a pilot reliability study.” 2011. Masters Thesis, Universiteit Utrecht. Accessed March 04, 2021.
http://dspace.library.uu.nl:8080/handle/1874/209674.
MLA Handbook (7th Edition):
Gijssel, M P E. “Quantifying motor control of the lumbar spine by a dynamic sitting device; a pilot reliability study.” 2011. Web. 04 Mar 2021.
Vancouver:
Gijssel MPE. Quantifying motor control of the lumbar spine by a dynamic sitting device; a pilot reliability study. [Internet] [Masters thesis]. Universiteit Utrecht; 2011. [cited 2021 Mar 04].
Available from: http://dspace.library.uu.nl:8080/handle/1874/209674.
Council of Science Editors:
Gijssel MPE. Quantifying motor control of the lumbar spine by a dynamic sitting device; a pilot reliability study. [Masters Thesis]. Universiteit Utrecht; 2011. Available from: http://dspace.library.uu.nl:8080/handle/1874/209674
13.
Bissmarck, Fredrik.
Real-time constraints to learning and control of voluntary movement : 随意運動の学習と制御における実時間の制約; ズイイ ウンドウ ノ ガクシュウ ト セイギョ ニ オケル ジツジカン ノ セイヤク.
Degree: Nara Institute of Science and Technology / 奈良先端科学技術大学院大学
URL: http://hdl.handle.net/10061/4629
Subjects/Keywords: motor control
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Bissmarck, F. (n.d.). Real-time constraints to learning and control of voluntary movement : 随意運動の学習と制御における実時間の制約; ズイイ ウンドウ ノ ガクシュウ ト セイギョ ニ オケル ジツジカン ノ セイヤク. (Thesis). Nara Institute of Science and Technology / 奈良先端科学技術大学院大学. Retrieved from http://hdl.handle.net/10061/4629
Note: this citation may be lacking information needed for this citation format:
No year of publication.
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Bissmarck, Fredrik. “Real-time constraints to learning and control of voluntary movement : 随意運動の学習と制御における実時間の制約; ズイイ ウンドウ ノ ガクシュウ ト セイギョ ニ オケル ジツジカン ノ セイヤク.” Thesis, Nara Institute of Science and Technology / 奈良先端科学技術大学院大学. Accessed March 04, 2021.
http://hdl.handle.net/10061/4629.
Note: this citation may be lacking information needed for this citation format:
No year of publication.
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Bissmarck, Fredrik. “Real-time constraints to learning and control of voluntary movement : 随意運動の学習と制御における実時間の制約; ズイイ ウンドウ ノ ガクシュウ ト セイギョ ニ オケル ジツジカン ノ セイヤク.” Web. 04 Mar 2021.
Note: this citation may be lacking information needed for this citation format:
No year of publication.
Vancouver:
Bissmarck F. Real-time constraints to learning and control of voluntary movement : 随意運動の学習と制御における実時間の制約; ズイイ ウンドウ ノ ガクシュウ ト セイギョ ニ オケル ジツジカン ノ セイヤク. [Internet] [Thesis]. Nara Institute of Science and Technology / 奈良先端科学技術大学院大学; [cited 2021 Mar 04].
Available from: http://hdl.handle.net/10061/4629.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
No year of publication.
Council of Science Editors:
Bissmarck F. Real-time constraints to learning and control of voluntary movement : 随意運動の学習と制御における実時間の制約; ズイイ ウンドウ ノ ガクシュウ ト セイギョ ニ オケル ジツジカン ノ セイヤク. [Thesis]. Nara Institute of Science and Technology / 奈良先端科学技術大学院大学; Available from: http://hdl.handle.net/10061/4629
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
No year of publication.
14.
Marko, Mollie K.
Sensitivity to Motor Error in Children with Autism.
Degree: 2014, Johns Hopkins University
URL: http://jhir.library.jhu.edu/handle/1774.2/37171
► When making a movement, the brain receives sensory feedback about the consequences of that action. If sensory feedback differs from predicted, the brain experiences an…
(more)
▼ When making a movement, the brain receives sensory feedback about the consequences of that action. If sensory feedback differs from predicted, the brain experiences an error, driving adaptation and improving subsequent movements. How much the brain adapts to error is governed by its sensitivity. Computationally, sensitivity is a scaling factor, specifying the relative amount of adaptation that occurs, while theoretically it is a quantification of the error’s value. In children with autism spectrum disorder (ASD), the response to sensory feedback appears abnormal. In particular, they are hyperresponsive to proprioceptive feedback and hyporesponsive to visual feedback. Here, we hypothesized that these sensory abnormalities would be manifested as an increased sensitivity to proprioceptive error and a decreased sensitivity to visual error. Further, we hypothesized that this pattern of error sensitivity would be related to anatomical abnormalities in the cerebellum, known
to be a neural substrate of
motor learning. Typical models of adaptation assume sensitivity to error to be a constant; however several studies contradict this, reporting a non-linear relationship between adaptation and error. Therefore, we first characterized sensitivity in healthy adults with a reach adaptation task, in which we perturbed their movements both proprioceptively and visually. By normalizing the trial-to-trial change in
motor commands by the error size, we isolated sensitivity to error. We found that, for both visual and proprioceptive errors, sensitivity declined with increasing error size. Interestingly, the probability of a complex spike in cerebellar Purkinje cells, previously believed to be a neural representation of an error, declined with increasing error as well. We therefore posited that complex spikes represent sensitivity to error during cerebellar adaptation. We then repeated our paradigm on children with ASD. As hypothesized, we found increased sensitivity
to proprioceptive error and decreased sensitivity to visual error, relative to healthy
control children. In these same subjects, we used anatomical MRI to measure the volume of the senosorimotor region of the cerebellum. We found this region was significantly smaller in children with ASD, and that sensitivity was a predictor of volume, identifying a potential neural substrate for the sensorimotor abnormalities seen in ASD.
Advisors/Committee Members: Shadmehr, Reza (advisor).
Subjects/Keywords: Motor Control; Autism Spectrum Disorder
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APA ·
Chicago ·
MLA ·
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CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Marko, M. K. (2014). Sensitivity to Motor Error in Children with Autism. (Thesis). Johns Hopkins University. Retrieved from http://jhir.library.jhu.edu/handle/1774.2/37171
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):
Marko, Mollie K. “Sensitivity to Motor Error in Children with Autism.” 2014. Thesis, Johns Hopkins University. Accessed March 04, 2021.
http://jhir.library.jhu.edu/handle/1774.2/37171.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Marko, Mollie K. “Sensitivity to Motor Error in Children with Autism.” 2014. Web. 04 Mar 2021.
Vancouver:
Marko MK. Sensitivity to Motor Error in Children with Autism. [Internet] [Thesis]. Johns Hopkins University; 2014. [cited 2021 Mar 04].
Available from: http://jhir.library.jhu.edu/handle/1774.2/37171.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Marko MK. Sensitivity to Motor Error in Children with Autism. [Thesis]. Johns Hopkins University; 2014. Available from: http://jhir.library.jhu.edu/handle/1774.2/37171
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Anna University
15.
Mahendiran T V.
Certain investigations on speed Control of electrical
motors using Soft computing techniques;.
Degree: Certain investigations on speed Control of electrical
motors using Soft computing techniques, 2015, Anna University
URL: http://shodhganga.inflibnet.ac.in/handle/10603/49382
► In this world, sixty percentage of energy from power generation is newlineconsumed by electrical motors This percentage may be increased due to the advancement of…
(more)
▼ In this world, sixty percentage of energy from
power generation is newlineconsumed by electrical motors This
percentage may be increased due to the advancement of power
electronics devices and rapid development in newlineautomation
technology The future world may be fully automated for each and
every process Electrical motor is an essential part of automation
unit Every second is very important to achieve the desired task
without any issue for which the efficient speed control techniques
for electrical motors in automation is crucial Most of the
manufacturing units in the world depend on electric motors for
their production thus highlighting the need for efficient speed
control of motors to increase the production An electrical motor
with a brilliant speed control consume only less energy Hence all
engineers and manufacturers seek fast and efficient speed control
techniques This laid the foundation for more research being carried
out in the speed control of motors newlineIn recent years the
conventional controllers are replaced by artificial
newlineintelligence based controllers due to their robustness and
adaptive nature to improve the performance of the motor newline
newline newline
appendix p111-180, reference
p181-186.
Advisors/Committee Members: Thanushkodi K.
Subjects/Keywords: Electrical motor; Speed control techniques
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
V, M. T. (2015). Certain investigations on speed Control of electrical
motors using Soft computing techniques;. (Thesis). Anna University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/49382
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):
V, Mahendiran T. “Certain investigations on speed Control of electrical
motors using Soft computing techniques;.” 2015. Thesis, Anna University. Accessed March 04, 2021.
http://shodhganga.inflibnet.ac.in/handle/10603/49382.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
V, Mahendiran T. “Certain investigations on speed Control of electrical
motors using Soft computing techniques;.” 2015. Web. 04 Mar 2021.
Vancouver:
V MT. Certain investigations on speed Control of electrical
motors using Soft computing techniques;. [Internet] [Thesis]. Anna University; 2015. [cited 2021 Mar 04].
Available from: http://shodhganga.inflibnet.ac.in/handle/10603/49382.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
V MT. Certain investigations on speed Control of electrical
motors using Soft computing techniques;. [Thesis]. Anna University; 2015. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/49382
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Penn State University
16.
Tomlinson, Tucker.
the dynamic dominance hypothesis as a general theory of human motor control.
Degree: 2012, Penn State University
URL: https://submit-etda.libraries.psu.edu/catalog/13979
► The role of lateralization in the control of human motion is difficult to assess. Lateralization of skilled control, or handedness is a readily observable yet…
(more)
▼ The role of lateralization in the
control of human motion is difficult to assess. Lateralization of skilled
control, or handedness is a readily observable yet incompletely understood facet of human
control of the upper extremity. Despite the ease with which hand preference is identified, the specific mechanisms producing these differences in
control are difficult to integrate into existing models of
control. The Dynamic Dominance hypothesis of human
motor control, builds a general theory of human
motor control from descriptions of the lateralization of hand and arm
control. The Dynamic Dominance hypothesis stipulates that the advantage displayed by the dominant limb is in the anticipation and utilization of the dynamics of movement across multiple segments. Additionally the Dynamic Dominance hypothesis proposes that the non-dominant arm has an advantage for specifying limb postures, which often results in advantages in final position accuracy. Further these advantages are due to the lateralization of neural circuits specialized to regulate different aspects of movement. Importantly, the Dynamic Dominance hypothesis proposes that movement of each arm relies on both contralateral and ipsilateral cortex to supply different aspects of
control.
The studies presented in this dissertation explore the generalizability of Dynamic Dominance as a model of
control. These studies address three specific limitations of past work. First, since Dynamic Dominance was developed based upon data collected from constrained, planar reaches, we wished to test how well the hypothesis generalized to conditions in which gravity must be accounted for. Second, we tested the feasibility of a simple
control model that simulated the discrete contribution of the two proposed hemisphere mechanisms to
control to of a single movement. We were particularly interested in the ability of such a model to describe the differences in
control observed in dominant and non-dominant arm movements. Finally, we examined predictions of how each hemisphere is activated during unilateral reaching. Based upon the
control requirements of the task, we predicted the activity over specific areas of cortex, based upon dynamic Dominance. These studies extend our understanding of lateralization of the human
motor control system.
Advisors/Committee Members: Robert L Sainburg, Dissertation Advisor/Co-Advisor, Stephen Jacob Piazza, Committee Member, Vladimir M Zatsiorsky, Committee Member, Henry Joseph Sommer Iii, Committee Member.
Subjects/Keywords: motor control; lateralization; handedness
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Tomlinson, T. (2012). the dynamic dominance hypothesis as a general theory of human motor control. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/13979
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):
Tomlinson, Tucker. “the dynamic dominance hypothesis as a general theory of human motor control.” 2012. Thesis, Penn State University. Accessed March 04, 2021.
https://submit-etda.libraries.psu.edu/catalog/13979.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Tomlinson, Tucker. “the dynamic dominance hypothesis as a general theory of human motor control.” 2012. Web. 04 Mar 2021.
Vancouver:
Tomlinson T. the dynamic dominance hypothesis as a general theory of human motor control. [Internet] [Thesis]. Penn State University; 2012. [cited 2021 Mar 04].
Available from: https://submit-etda.libraries.psu.edu/catalog/13979.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Tomlinson T. the dynamic dominance hypothesis as a general theory of human motor control. [Thesis]. Penn State University; 2012. Available from: https://submit-etda.libraries.psu.edu/catalog/13979
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Penn State University
17.
Martin, Joel Ryan.
CONTROL OF MULTI-FINGER PRESSING: STUDIED WITH MECHANICAL AND HYPOTHETICAL CONTROL VARIABLES.
Degree: 2012, Penn State University
URL: https://submit-etda.libraries.psu.edu/catalog/15160
► One of the central issues in the field of motor control is how movements are controlled, or more specifically, what is controlled by the central…
(more)
▼ One of the central issues in the field of
motor control is how movements are controlled, or more specifically, what is controlled by the central nervous system (CNS). Typically, movements involve the interaction of multiple effectors to produce a desired output. An attractive approach to addressing this problem is studying the interaction of fingers in multi-finger tasks. One issue that arises when studying finger interaction is that single finger force production cannot be performed independently of the other fingers. A behavior known as enslaving occurs when one tries to press with a single finger – the other fingers also produce force. The dissertation was divided into two parts. The purpose of the first part of the dissertation was to use single- and multi-finger pressing paradigms to investigate: 1) anatomical changes induced in fingers due to changes in configuration and force production of a single finger; 2) force changes of fingers due to an involuntary perturbation of a single finger during a four-finger pressing task; and 3) force changes of fingers due to voluntary pressing of a single finger which followed a task that required establishing a total force stabilizing synergy among the four fingers. The main findings from the first part of the dissertation were: 1) the changes in configuration and force production of a single finger resulted in no significant anatomical changes in the other fingers; 2) an involuntary perturbation of a single finger resulted in the non-perturbed fingers displaying changes in force that acted to stabilize task performance; and 3) following the establishment of a force stabilizing synergy the CNS was able to quickly abolish that synergy such that typical finger enslaving was observed during voluntary pressing with a single finger. The second part of the dissertation investigated whether it is plausible the CNS uses hypothetical
control variables (called neural commands) instead of the mechanical variables (force in our case) to
control and regulate movements. The neural commands are essentially free of the enslaving effects. Estimating neural commands is non-trivial and a methodological study was performed to determine the best procedure for computing neural commands. It was determined that a neural network model provided the most accurate estimation of neural commands. Analytical inverse optimization (ANIO) and uncontrolled manifold analysis (UCM) were used to compare performance of neural commands to finger forces in a multi-finger pressing task. Based on the experimental results it appears plausible that the CNS may operate in the space of neural commands. The neural commands performed equally as well to the forces in terms of optimality and outperformed forces in terms of the structure of variance. These findings agree with the notion that the CNS controls patterns of muscle activity, not individual muscles and the findings also support a synergistic hierarchical organization of the elemental variables.
Advisors/Committee Members: Vladimir M Zatsiorsky, Dissertation Advisor/Co-Advisor, Mark Latash, Committee Member, Jinger Gottschall, Committee Member, Andris Freivalds, Special Member.
Subjects/Keywords: Biomechanics; Motor Control; Finger Interaction
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Martin, J. R. (2012). CONTROL OF MULTI-FINGER PRESSING: STUDIED WITH MECHANICAL AND HYPOTHETICAL CONTROL VARIABLES. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/15160
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):
Martin, Joel Ryan. “CONTROL OF MULTI-FINGER PRESSING: STUDIED WITH MECHANICAL AND HYPOTHETICAL CONTROL VARIABLES.” 2012. Thesis, Penn State University. Accessed March 04, 2021.
https://submit-etda.libraries.psu.edu/catalog/15160.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Martin, Joel Ryan. “CONTROL OF MULTI-FINGER PRESSING: STUDIED WITH MECHANICAL AND HYPOTHETICAL CONTROL VARIABLES.” 2012. Web. 04 Mar 2021.
Vancouver:
Martin JR. CONTROL OF MULTI-FINGER PRESSING: STUDIED WITH MECHANICAL AND HYPOTHETICAL CONTROL VARIABLES. [Internet] [Thesis]. Penn State University; 2012. [cited 2021 Mar 04].
Available from: https://submit-etda.libraries.psu.edu/catalog/15160.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Martin JR. CONTROL OF MULTI-FINGER PRESSING: STUDIED WITH MECHANICAL AND HYPOTHETICAL CONTROL VARIABLES. [Thesis]. Penn State University; 2012. Available from: https://submit-etda.libraries.psu.edu/catalog/15160
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Delft University of Technology
18.
Geers, Matthijs (author).
Optimising Motor Control in Actuator Alignment.
Degree: 2018, Delft University of Technology
URL: http://resolver.tudelft.nl/uuid:88f32499-d2a7-4822-8c19-c64d4fd1d235
► The automation of replanting seedlings into bigger trays (transplanting) has been a major industrialisation step in the horticultural sector. Modern machines are abundant in large…
(more)
▼ The automation of replanting seedlings into bigger trays (transplanting) has been a major industrialisation step in the horticultural sector. Modern machines are abundant in large companies and are quite effective, but they are very expensive both in purchase and maintenance. With major clients taking these costs for granted, designers have not stopped to consider ways to alleviate them. This work introduces an affordable electronic system that makes transplanters wireless, allowing for hot-swappable actuators and thus greatly reducing the cost of technicians and downtime as well as procurement. The expensive servo
motor drives are replaced by dedicated microcontrollers, allowing the actuators to make their own decisions based on the constraints imposed by various standards of tray sizes and other circumstances. A method is presented to derive the most favourable trajectories, which are then enforced on the system through a closed-loop feedback system. The resulting performance approaches that of the system's predecessor, but at a much more reasonable price. This makes transplanters more affordable for small companies, allowing a broader market to reap the harvest of technological development and increasing worldwide horticultural yield as a result.
Advisors/Committee Members: van Genderen, Arjan (mentor), Neuteboom, Jasper (mentor), Al-Ars, Zaid (graduation committee), de Groot, Joost (graduation committee), Delft University of Technology (degree granting institution).
Subjects/Keywords: transplanting; trajectory planning; motor control
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APA ·
Chicago ·
MLA ·
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CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Geers, M. (. (2018). Optimising Motor Control in Actuator Alignment. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:88f32499-d2a7-4822-8c19-c64d4fd1d235
Chicago Manual of Style (16th Edition):
Geers, Matthijs (author). “Optimising Motor Control in Actuator Alignment.” 2018. Masters Thesis, Delft University of Technology. Accessed March 04, 2021.
http://resolver.tudelft.nl/uuid:88f32499-d2a7-4822-8c19-c64d4fd1d235.
MLA Handbook (7th Edition):
Geers, Matthijs (author). “Optimising Motor Control in Actuator Alignment.” 2018. Web. 04 Mar 2021.
Vancouver:
Geers M(. Optimising Motor Control in Actuator Alignment. [Internet] [Masters thesis]. Delft University of Technology; 2018. [cited 2021 Mar 04].
Available from: http://resolver.tudelft.nl/uuid:88f32499-d2a7-4822-8c19-c64d4fd1d235.
Council of Science Editors:
Geers M(. Optimising Motor Control in Actuator Alignment. [Masters Thesis]. Delft University of Technology; 2018. Available from: http://resolver.tudelft.nl/uuid:88f32499-d2a7-4822-8c19-c64d4fd1d235
19.
竹腰, 貴成.
音響デバイスとしてのモータ制御システムの開発.
Degree: 2011, Hosei University / 法政大学
URL: http://hdl.handle.net/10114/6885
► Electric motors are widely used in many home electric system thatproduce actuating task such as home appliance vacuum cleaner. The mainproblems for vacuum cleaner is…
(more)
▼ Electric motors are widely used in many home electric system thatproduce actuating task such as home appliance vacuum cleaner. The mainproblems for vacuum cleaner is large noise when at high-speed rotation.Therefore many researchers and companies are developed new technologyfor suppressing motor noise. Generally speaking, it is very difficult tosuppress noise, since the motor noise is generated by various factors. In thispaper, we focus on characteristics of human perception from ears. Insteadof suppress motor noise, we control motor noise spectrum according tohuman perception. To control motor noise spectrum, motor control driverthat may control motor rotational speed and motor noise spectrumindependently is necessary. In order to confirm the basic idea of proposedmotor control driver, we develop basic prototype and validate simpleexperiments.
Subjects/Keywords: Motor; Human perception; noise control
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
竹腰, . (2011). 音響デバイスとしてのモータ制御システムの開発. (Thesis). Hosei University / 法政大学. Retrieved from http://hdl.handle.net/10114/6885
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):
竹腰, 貴成. “音響デバイスとしてのモータ制御システムの開発.” 2011. Thesis, Hosei University / 法政大学. Accessed March 04, 2021.
http://hdl.handle.net/10114/6885.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
竹腰, 貴成. “音響デバイスとしてのモータ制御システムの開発.” 2011. Web. 04 Mar 2021.
Vancouver:
竹腰 . 音響デバイスとしてのモータ制御システムの開発. [Internet] [Thesis]. Hosei University / 法政大学; 2011. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/10114/6885.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
竹腰 . 音響デバイスとしてのモータ制御システムの開発. [Thesis]. Hosei University / 法政大学; 2011. Available from: http://hdl.handle.net/10114/6885
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Wilfrid Laurier University
20.
Mitchell, Jaime.
Differences in perceptions of aperture crossing during a virtual reality choice reaction task between non-athletes and varsity athletes.
Degree: 2018, Wilfrid Laurier University
URL: https://scholars.wlu.ca/etd/2056
► Background: Vision will guide the actions and behaviors that allow us to circumvent environmental obstacles. When passing through a gap, individuals will consistently elicit a…
(more)
▼ Background: Vision will guide the actions and behaviors that allow us to circumvent environmental obstacles. When passing through a gap, individuals will consistently elicit a shoulder rotation (SR) if the gap is 1.4 times their shoulder width (SW) or narrower, with this behaviour being produced under various environmental conditions. Although a few studies have investigated perceptual predictions regarding gap passage, the effect of physical activity and the differences between trained and untrained athlete’s behaviours has not been examined. This study investigated the perceptual judgements of non-athletes and varsity athletes regarding the action they would utilize to pass through a dynamically converging gap, and whether varsity athletes experienced any sport-specific benefits from a bout of physical activity.
Methods: Part 1) Eleven non-athletes walked (in VR) along a 7.5 m path while two avatars moved towards them on converging angles, creating perceived aperture widths of 0.8, 1, 1.2, 1.4, 1.6, and 1.8 x SW at the theoretical time of crossing. At 2 seconds prior to contact the screen went blank and the subjects identified whether they would rotate their shoulders to pass through the two or not. The non-athletes completed the study on two counterbalanced days, the exercise day involved a 14-minute exercise protocol (a 2-min warm-up, 10-min graded exercise bout, and a 2-min cool down), before repeating the task again. On the rest day participants sat quietly for 15 min before competing the task a second time. Part 2) Eighteen varsity athletes were randomized into an exercise or rest group. Both groups completed a single protocol from Part 1 (either the exercise or rest day).
Results: Both the non-athletes and varsity athletes’ perceptions were modulated to body-scaled judgments, such that smaller apertures were perceived to require significantly more rotations then larger ones. After exercise, the non-athletes critical point became more conservative (from 1.13 to 1.25 x SW), while the varsity athletes critical point got closer to their true SW (from 1.21 x SW to 1.17 x SW). Exercise had no effect on non-athlete’s response time (p=.47) or accuracy (p=.22) but shortened the varsity athletes response time (p=.033) and improved their accuracy (p=.046) from 69% to 82% correct perceptual judgements.
Conclusion: Overall, the results of the current study demonstrated that both non-athletes and varsity athletes successfully modulated their perceived SRs to gap width. It is possible the arousal following physical activity allowed the athletes enhanced visuomotor skills to be transferable to the current task by making it more sport-specific. The results from this study provide insight as to how individuals perceptually circumvent apertures without producing actions and provides further understanding as to how perceptions and actions work together to guide locomotion.
Subjects/Keywords: Exercise Science; Motor Control
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Mitchell, J. (2018). Differences in perceptions of aperture crossing during a virtual reality choice reaction task between non-athletes and varsity athletes. (Thesis). Wilfrid Laurier University. Retrieved from https://scholars.wlu.ca/etd/2056
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):
Mitchell, Jaime. “Differences in perceptions of aperture crossing during a virtual reality choice reaction task between non-athletes and varsity athletes.” 2018. Thesis, Wilfrid Laurier University. Accessed March 04, 2021.
https://scholars.wlu.ca/etd/2056.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Mitchell, Jaime. “Differences in perceptions of aperture crossing during a virtual reality choice reaction task between non-athletes and varsity athletes.” 2018. Web. 04 Mar 2021.
Vancouver:
Mitchell J. Differences in perceptions of aperture crossing during a virtual reality choice reaction task between non-athletes and varsity athletes. [Internet] [Thesis]. Wilfrid Laurier University; 2018. [cited 2021 Mar 04].
Available from: https://scholars.wlu.ca/etd/2056.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Mitchell J. Differences in perceptions of aperture crossing during a virtual reality choice reaction task between non-athletes and varsity athletes. [Thesis]. Wilfrid Laurier University; 2018. Available from: https://scholars.wlu.ca/etd/2056
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
21.
LUDVIGSSON, ADRIAN.
Styrning av borstlös DC-motor med GR716 mikrokontroller
.
Degree: Chalmers tekniska högskola / Institutionen för data och informationsteknik, 2020, Chalmers University of Technology
URL: http://hdl.handle.net/20.500.12380/301952
► Projektets mål är att använda GR716 för styrning av en borstlös likströmsmotor. GR716 är en mikrokontroller utvecklad av Cobham Gaisler AB i Göteborg för att…
(more)
▼ Projektets mål är att använda GR716 för styrning av en borstlös likströmsmotor. GR716 är en mikrokontroller
utvecklad av Cobham Gaisler AB i Göteborg för att användas inom rymdindustrin.
Motorstyrningen är baserad på positionering med hall-sensorer och utan sensorer genom mätning av BEMF.
Resultaten visar ett fungerande program för körning med hall-sensorer. Utöver det visas resultat från mätningar
av BEMF med ADC i GR716.
En fungerade motorstyrning utan sensorer uppnåddes inte. Det orsakades delvis av problem med att synkro-
nisera ADC och PWM.
Subjects/Keywords: GR716;
BLDC;
BEMF;
Motor Control
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
LUDVIGSSON, A. (2020). Styrning av borstlös DC-motor med GR716 mikrokontroller
. (Thesis). Chalmers University of Technology. Retrieved from http://hdl.handle.net/20.500.12380/301952
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):
LUDVIGSSON, ADRIAN. “Styrning av borstlös DC-motor med GR716 mikrokontroller
.” 2020. Thesis, Chalmers University of Technology. Accessed March 04, 2021.
http://hdl.handle.net/20.500.12380/301952.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
LUDVIGSSON, ADRIAN. “Styrning av borstlös DC-motor med GR716 mikrokontroller
.” 2020. Web. 04 Mar 2021.
Vancouver:
LUDVIGSSON A. Styrning av borstlös DC-motor med GR716 mikrokontroller
. [Internet] [Thesis]. Chalmers University of Technology; 2020. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/20.500.12380/301952.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
LUDVIGSSON A. Styrning av borstlös DC-motor med GR716 mikrokontroller
. [Thesis]. Chalmers University of Technology; 2020. Available from: http://hdl.handle.net/20.500.12380/301952
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Arizona State University
22.
Semken, Keith.
The Effects of Assisted Cycle Therapy on Executive and Motor
Functioning in Older Adults.
Degree: Exercise and Wellness, 2015, Arizona State University
URL: http://repository.asu.edu/items/34911
► This study examines cognitive and motor function in typical older adults following acute exercise. Ten older adults (Mage = 65.1) completed a single session of…
(more)
▼ This study examines cognitive and motor function in
typical older adults following acute exercise. Ten older adults
(Mage = 65.1) completed a single session of assisted cycling (AC)
(i.e., exercise accomplished through the use of a motor), voluntary
cycling (VC) (self-selected cadence), and a no cycling (NC) control
group. These sessions were randomized and separated by
approximately one week. Both ACT and VC groups rode a stationary
bicycle for 30-minutes each session. These sessions were separated
by at least two days. Participants completed cognitive testing that
assessed information processing and set shifting and motor testing
including gross and fine motor performance at the beginning and at
the end of each session. Consistent with our hypothesis concerning
manual dexterity, the results showed that manual dexterity improved
following the ACT session more than the VC or NC sessions.
Improvements in set shifting were also found for the ACT session
but not for the VC or NC sessions. The results are interpreted with
respect to improvements in neurological function in older adults
following acute cycling exercise. These improvements are balance,
manual dexterity, and set shifting which have a positive effects on
activities of daily living; such as, decrease risk of falls,
improve movements like eating and handwriting, and increase ability
to multitask.
Subjects/Keywords: Kinesiology; Executive Function; Motor Control
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Semken, K. (2015). The Effects of Assisted Cycle Therapy on Executive and Motor
Functioning in Older Adults. (Masters Thesis). Arizona State University. Retrieved from http://repository.asu.edu/items/34911
Chicago Manual of Style (16th Edition):
Semken, Keith. “The Effects of Assisted Cycle Therapy on Executive and Motor
Functioning in Older Adults.” 2015. Masters Thesis, Arizona State University. Accessed March 04, 2021.
http://repository.asu.edu/items/34911.
MLA Handbook (7th Edition):
Semken, Keith. “The Effects of Assisted Cycle Therapy on Executive and Motor
Functioning in Older Adults.” 2015. Web. 04 Mar 2021.
Vancouver:
Semken K. The Effects of Assisted Cycle Therapy on Executive and Motor
Functioning in Older Adults. [Internet] [Masters thesis]. Arizona State University; 2015. [cited 2021 Mar 04].
Available from: http://repository.asu.edu/items/34911.
Council of Science Editors:
Semken K. The Effects of Assisted Cycle Therapy on Executive and Motor
Functioning in Older Adults. [Masters Thesis]. Arizona State University; 2015. Available from: http://repository.asu.edu/items/34911

University of Minnesota
23.
Srivatchan, Lakshmi Narayanan.
Parameter estimation and indirect vector control of AC induction motor.
Degree: MS, Electrical Engineering, 2014, University of Minnesota
URL: http://hdl.handle.net/11299/162835
► Industrial motor drive applications are usually complex and expensive. Most industries invest time and effort to implement drives which are low-cost, reliable, energy efficient and…
(more)
▼ Industrial motor drive applications are usually complex and expensive. Most industries invest time and effort to implement drives which are low-cost, reliable, energy efficient and require low maintenance. In this field, the Induction motor (IM) is popular for its superior performance compared to its counterparts. There are two types of IM- squirrel cage IM and wound rotor IM both widely used. The popularity of the squirrel cage induction machine is attributed to its ruggedness (high output power to size ratio) and simplicity of construction. Recent advances in power electronics such as the Voltage Source Inverter (VSI) based drives have enabled variable speed control of IM's. VSI based drive converts DC voltage into three phase voltage of variable magnitude and frequency based on requirements for motor control. Well established knowledge in the fields of Digital Signal Processing (DSP), high performance microcontrollers, and analog sensors has aided the growth of motor controllers. This thesis has its foundation on a certain form of control called Indirect Vector control based on frame transformations, estimators and error based controllers. Chapter 1 discusses the basics of frame transformations, its advantages and modeling the IM in a new frame called the dq-frame. Chapter 2 examines the indirect vector control on the dq- frame and lays the foundation for simulation study. Chapter 3 deals with the method used to arrive at motor parameters and discusses the importance of accuracy of these values. It also expands on the vector control foundation by building a mathematical model of some of the components of the control used for simulation studies. Chapter 4 discusses in detail the design of error based controllers and presents a simple comparative study between different controllers. Chapter 5 talks about the simulation and hardware setup and provides the respective results.
Subjects/Keywords: FOC; Motor controls; Vector control
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Srivatchan, L. N. (2014). Parameter estimation and indirect vector control of AC induction motor. (Masters Thesis). University of Minnesota. Retrieved from http://hdl.handle.net/11299/162835
Chicago Manual of Style (16th Edition):
Srivatchan, Lakshmi Narayanan. “Parameter estimation and indirect vector control of AC induction motor.” 2014. Masters Thesis, University of Minnesota. Accessed March 04, 2021.
http://hdl.handle.net/11299/162835.
MLA Handbook (7th Edition):
Srivatchan, Lakshmi Narayanan. “Parameter estimation and indirect vector control of AC induction motor.” 2014. Web. 04 Mar 2021.
Vancouver:
Srivatchan LN. Parameter estimation and indirect vector control of AC induction motor. [Internet] [Masters thesis]. University of Minnesota; 2014. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/11299/162835.
Council of Science Editors:
Srivatchan LN. Parameter estimation and indirect vector control of AC induction motor. [Masters Thesis]. University of Minnesota; 2014. Available from: http://hdl.handle.net/11299/162835
24.
Leonardi, Giuseppa.
L'apprendimento delle abilità posturali genera schemi di controllo specifici.
Degree: 2011, Università degli Studi di Catania
URL: http://hdl.handle.net/10761/147
► La stabilità della stazione eretta di un gruppo di ballerine professioniste è stata comparata con quella di un gruppo di soggetti sedentari per verificare l'influenza…
(more)
▼ La stabilità della stazione eretta di un gruppo di ballerine professioniste è stata comparata con quella di un gruppo di soggetti sedentari per verificare l'influenza dell'apprendimento di posture complesse su altre forme di stazione eretta. Sono state considerante un set di 5 posture diverse: in due configurazioni i piedi erano paralleli e distanza intermalleolare di 10 e di 20 cm; in altre due i piedi erano leggermente extra ruotati con angolo di apertura di 20° e distanza intermalleolare di 15 cm e fortemente extra ruotati con angolo di apertura di 140° con i talloni accostati; nell'ultima configurazione i piedi erano allineati lungo il piano sagittale con tallone e punta accostati. Le varie posizioni presentavano diversi livelli d' instabilità ma solo le ultime due erano configurazioni poco comuni per il gruppo di sedentari mentre solo l'ultima era poco familiare per le ballerine. La stabilità posturale è stata valutata anche in condizioni dinamiche: i soggetti erano invitati ad eseguire l'elevazione laterale o la flessione in avanti di un arto rimanendo in equilibrio sull' arto controlaterale. La quantificazione della stabilità posturale veniva effettuata tramite una pedana dinamometrica determinando la posizione del Centro di Pressione (CoP). La ricostruzione della traiettoria del CoP permetteva la determinazione di parametri spaziali (area complessiva del CoP, lunghezza della sua traiettoria), parametri relativi alla variabilità temporale sull'asse antero-posteriore e medio laterale (Root Mean Square Distance e Approximate Entropy) e parametri riguardanti il contenuto in frequenze del segnale oscillatorio (Mean Power Frequency). La quantificazione della stabilità posturale, sia in condizioni statiche che dinamiche, ha evidenziato differenze significative tra il gruppo delle ballerine e quello dei soggetti di controllo solo nel caso in cui i piedi erano completamente extraruotati per la condizione statica e nel caso dell'elevazione dell'arto lateralmente per la condizione dinamica. Le ballerine, quindi, mostravano un miglioramento importante solo in quelle condizioni specificatamente associate alla pratica della danza classica mentre non sono state osservate differenze tra i due gruppi nel caso delle posture piu' comuni o della postura con i piedi allineati. I dati sperimentali riportati in questa tesi permettono di affermare che la pratica della danza classica permette l'apprendimento di posture strettamente specifiche agli esercizi praticati senza alcuna generalizzazione verso altre forme di stazione eretta.
Subjects/Keywords: Motor control; posturografia; transfer
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Leonardi, G. (2011). L'apprendimento delle abilità posturali genera schemi di controllo specifici. (Thesis). Università degli Studi di Catania. Retrieved from http://hdl.handle.net/10761/147
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):
Leonardi, Giuseppa. “L'apprendimento delle abilità posturali genera schemi di controllo specifici.” 2011. Thesis, Università degli Studi di Catania. Accessed March 04, 2021.
http://hdl.handle.net/10761/147.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Leonardi, Giuseppa. “L'apprendimento delle abilità posturali genera schemi di controllo specifici.” 2011. Web. 04 Mar 2021.
Vancouver:
Leonardi G. L'apprendimento delle abilità posturali genera schemi di controllo specifici. [Internet] [Thesis]. Università degli Studi di Catania; 2011. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/10761/147.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Leonardi G. L'apprendimento delle abilità posturali genera schemi di controllo specifici. [Thesis]. Università degli Studi di Catania; 2011. Available from: http://hdl.handle.net/10761/147
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Arkansas
25.
Merk, Lauren Marie.
Comparing Reaction Time and Postural Stabilization based on Activity Groups in Older Adults.
Degree: MS, 2017, University of Arkansas
URL: https://scholarworks.uark.edu/etd/2411
► The purpose of this study was to compare reaction time and postural stabilization between activity groups in older adults. These variables are important because…
(more)
▼ The purpose of this study was to compare reaction time and postural stabilization between activity groups in older adults. These variables are important because older adults are at a high fall risk and two major contributors to fall risk are postural stabilization and reaction time. This study examined if the activity group of an older adult had any influence on reaction time and postural stabilization. Fifty-nine older adults aged 66.46 ± 9.47 years old were used in the study. Thirteen subjects were in the master’s athletes which are individuals over the age of 40 who competed in a nationally sanctioned event within the last 6 months and complete at least 150 minutes of aerobic exercise per week, 27 were in recreationally active, which are individuals who complete at least 150 minutes of aerobic exercise per week but do not compete, and 19 were in sedentary activity group, which are individuals who do not exercise at least 150 minutes per week of aerobic exercise. Choice and simple reaction time were measured to determined how quickly the individual could respond to a stimulus. Postural stabilization was measured using a Biodex Balance System. After comparing the activity groups using one-way ANOVA’s, no statistically significant differences were found between activity groups in simple reaction time, F(2, 56) = 2.77, p = .07, choice reaction time F(2, 56) = 2.29, p = .11, or postural stabilization scores F(2, 48) = .697, p = .51. The cohen’s f test found moderate effect sizes in the simple reaction time, f = 0.31, and choice reaction time, f = 0.29. The cohen’s d test found the effect size was largest, d > 0.50 between sedentary and master’s athletes activity groups and between recreationally active and master’s athletes activity groups for all three variables. The main conclusion is that there were no significant differences between activity groups but that may be from the small number of subjects. The effect sizes showed a trend that master’s athletes had the best scores overall for each variable.
Advisors/Committee Members: Michelle Gray, Robert Elbin, Kaitlin Gallagher.
Subjects/Keywords: Exercise Science; Motor Control
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APA (6th Edition):
Merk, L. M. (2017). Comparing Reaction Time and Postural Stabilization based on Activity Groups in Older Adults. (Masters Thesis). University of Arkansas. Retrieved from https://scholarworks.uark.edu/etd/2411
Chicago Manual of Style (16th Edition):
Merk, Lauren Marie. “Comparing Reaction Time and Postural Stabilization based on Activity Groups in Older Adults.” 2017. Masters Thesis, University of Arkansas. Accessed March 04, 2021.
https://scholarworks.uark.edu/etd/2411.
MLA Handbook (7th Edition):
Merk, Lauren Marie. “Comparing Reaction Time and Postural Stabilization based on Activity Groups in Older Adults.” 2017. Web. 04 Mar 2021.
Vancouver:
Merk LM. Comparing Reaction Time and Postural Stabilization based on Activity Groups in Older Adults. [Internet] [Masters thesis]. University of Arkansas; 2017. [cited 2021 Mar 04].
Available from: https://scholarworks.uark.edu/etd/2411.
Council of Science Editors:
Merk LM. Comparing Reaction Time and Postural Stabilization based on Activity Groups in Older Adults. [Masters Thesis]. University of Arkansas; 2017. Available from: https://scholarworks.uark.edu/etd/2411

Queens University
26.
Zheng, Zane.
Perceptual processing of auditory feedback during speech production and its neural substrates
.
Degree: Neuroscience Studies, 2012, Queens University
URL: http://hdl.handle.net/1974/7403
► One enduring question in the study of speech concerns the nature of the link between speech perception and production. Although accumulating evidence suggests that these…
(more)
▼ One enduring question in the study of speech concerns the nature of the link between speech perception and production. Although accumulating evidence suggests that these two facets of spoken language are tightly coupled, the cognitive structure and neural organization underlying the interactions between the two processes are not well understood.
In this thesis, I focus on questions that arise from observations related to when individuals are both talking and listening, and assess the sensitivity of talkers and listeners to the same change in the acoustics of speech. First, I aim to elucidate the neural substrates of auditory feedback control during vocalization by examining the brain response to acoustic perturbations towards auditory concomitants of speech using functional magnetic resonance imaging (fMRI) (Chapters 2 and 3). I demonstrate, for the first time, an extensive network of brain regions involved in the detection and correction of auditory feedback errors during speech production, for which three functionally differentiated neural systems can be delineated. Then I set out to address the online perception of own voice identity as individuals are talking. Chapters 4 and 5 measure the perceptual sensitivity of individuals to the auditory concomitants of their own speech by presenting temporally gated auditory feedback in stranger’s voices during talking. The results show that people perceive stranger’s voices as a modified version of their own voice and adjust their vocal production accordingly, when their utterances and heard feedback are phonetically congruent. Chapter 6 further examines this perceptual effect by using experimental paradigms in the domain of body ownership and shows that the misattribution of the stranger’s voice, is not predicted by individual differences in suggestibility; rather it is related to the integration of multimodal cues.
In summary, by focusing on how the acoustics of speech are simultaneously processed for both the perception and production sides of spoken language, the series of studies add significantly to our understanding of the psychophysical, cognitive and anatomical relationships between speech perception and production, and are relevant to a wide range of clinical pathologies (e.g., stuttering, schizophrenia).
Subjects/Keywords: Speech Motor Control
;
Cognitive Neuroscience
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Zheng, Z. (2012). Perceptual processing of auditory feedback during speech production and its neural substrates
. (Thesis). Queens University. Retrieved from http://hdl.handle.net/1974/7403
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):
Zheng, Zane. “Perceptual processing of auditory feedback during speech production and its neural substrates
.” 2012. Thesis, Queens University. Accessed March 04, 2021.
http://hdl.handle.net/1974/7403.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Zheng, Zane. “Perceptual processing of auditory feedback during speech production and its neural substrates
.” 2012. Web. 04 Mar 2021.
Vancouver:
Zheng Z. Perceptual processing of auditory feedback during speech production and its neural substrates
. [Internet] [Thesis]. Queens University; 2012. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/1974/7403.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Zheng Z. Perceptual processing of auditory feedback during speech production and its neural substrates
. [Thesis]. Queens University; 2012. Available from: http://hdl.handle.net/1974/7403
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Queens University
27.
Mitsuya, Takashi.
The control of speech motor targets
.
Degree: Psychology, 2013, Queens University
URL: http://hdl.handle.net/1974/8358
► Studies of speech production and its control have traditionally focused on acoustic parameters and/or articulatory configurations of the end result of the production process as…
(more)
▼ Studies of speech production and its control have traditionally focused on acoustic parameters and/or articulatory configurations of the end result of the production process as the target of speech production. The representations of production target, however, are far richer than the stereotypical acoustic/articulatory features that have been identified from those traditional studies. Speech production is a process through which mental representations of a language are transformed into vocal tract movements and sounds as physical entities. Thus, the speech production target includes these complete representations, and in order to fully understand how the target is controlled, we need to perturb the production process. This paradigm allows us to see how the production system as a whole corrects behavior in response to the perturbation. By systematically introducing perturbation, it is possible to examine what is needed for the system to detect an error, and how such an error is reduced. This, in turn, enables us to have a better understanding of what the speech production target is and how it is defined. A series of experiments were carried out to examine this issue in this thesis, using a real-time auditory perturbation paradigm. This paradigm perturbs the auditory feedback speakers receive while they are producing a speech segment. In response to the perturbation, subjects spontaneously change their articulation to compensate. The results showed that 1) the speech production target is not a list of independently controlled acoustic features but is a multi-dimensionally defined category that is language dependent 2) spectral and temporal aspects of speech motor control show the same results 3) similar compensation behavior is observed even with using an unfamiliar tool to produce a vowel-like sounds, and 4) an intention to produce a speech category may be manifested in ways that are different than behavior in other motor control studies such as reaching.
Subjects/Keywords: Speech motor control
;
Speech production
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Mitsuya, T. (2013). The control of speech motor targets
. (Thesis). Queens University. Retrieved from http://hdl.handle.net/1974/8358
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):
Mitsuya, Takashi. “The control of speech motor targets
.” 2013. Thesis, Queens University. Accessed March 04, 2021.
http://hdl.handle.net/1974/8358.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Mitsuya, Takashi. “The control of speech motor targets
.” 2013. Web. 04 Mar 2021.
Vancouver:
Mitsuya T. The control of speech motor targets
. [Internet] [Thesis]. Queens University; 2013. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/1974/8358.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Mitsuya T. The control of speech motor targets
. [Thesis]. Queens University; 2013. Available from: http://hdl.handle.net/1974/8358
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Montana
28.
Donahue, Seth.
Are maximum ground forces and leg compression in phase? A test of the classical spring mass model of running gaits.
Degree: MS, 2017, University of Montana
URL: https://scholarworks.umt.edu/etd/11058
► The mechanical understanding of human running has classically been described as a spring-mass system, with subsequent models predicting the movements of the body’s center…
(more)
▼ The mechanical understanding of human running has classically been described as a spring-mass system, with subsequent models predicting the movements of the body’s center of mass and the forces applied by the leg against the ground. A central requirement of any spring system is the phasic relationship between the length of the elastic elements and the forces applied to these structures. Specifically, elastic elements compress under load and extend as the load is released. We tested whether this model applies to individuals with specialization for extreme performance in human gait. Recent work from elite level sprint runners suggest that their patterns of force application differ from those used during slow speed running, and similarly differ between individuals capable of high speed running and those that are not. We measured force application and center of mass movements in collegiate sprinters (n=7; top speed 10.1 ± 0.7 m s-1) and recreational runners (n=9; top speed 8.4 ± 0.1m s-1) as they ran on an instrumented force treadmill at speeds spanning each individual’s range. Between these groups we found sprinters applied greater stance average forces at common speeds (mean difference = 11 ± 0.2%) and used an asymmetrical pattern of force application to do so when running at speeds great than 7.0 m s-1. Further at speeds greater than this threshold peak force application preceded minimum center of mass height by 13±1% when expressed relative to the duration of foot-ground contact. This result produced force-length relationships, a method to describe the elastic properties of the leg, that were unique among terrestrial species displaying increased compression of the leg despite lesser levels of force application. We conclude sprint runners use novel gait mechanics to obtain increased whole-body performance rather than a reliance on the storage and release of elastic energy, classically documented at low speeds and for recreational runners.
Subjects/Keywords: Biomechanics; Exercise Science; Motor Control
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Donahue, S. (2017). Are maximum ground forces and leg compression in phase? A test of the classical spring mass model of running gaits. (Masters Thesis). University of Montana. Retrieved from https://scholarworks.umt.edu/etd/11058
Chicago Manual of Style (16th Edition):
Donahue, Seth. “Are maximum ground forces and leg compression in phase? A test of the classical spring mass model of running gaits.” 2017. Masters Thesis, University of Montana. Accessed March 04, 2021.
https://scholarworks.umt.edu/etd/11058.
MLA Handbook (7th Edition):
Donahue, Seth. “Are maximum ground forces and leg compression in phase? A test of the classical spring mass model of running gaits.” 2017. Web. 04 Mar 2021.
Vancouver:
Donahue S. Are maximum ground forces and leg compression in phase? A test of the classical spring mass model of running gaits. [Internet] [Masters thesis]. University of Montana; 2017. [cited 2021 Mar 04].
Available from: https://scholarworks.umt.edu/etd/11058.
Council of Science Editors:
Donahue S. Are maximum ground forces and leg compression in phase? A test of the classical spring mass model of running gaits. [Masters Thesis]. University of Montana; 2017. Available from: https://scholarworks.umt.edu/etd/11058
29.
Tolbert, Derek.
Trunk Stability and Postural Stability in People with Multiple Sclerosis.
Degree: MS, Health and Nutritional Sciences, 2018, South Dakota State University
URL: https://openprairie.sdstate.edu/etd/2487
► Multiple Sclerosis is a neurological disease which affects an estimated 2.5million people worldwide. People with Multiple Sclerosis often experience high rates of falls, which…
(more)
▼ Multiple Sclerosis is a neurological disease which affects an estimated 2.5million people worldwide. People with Multiple Sclerosis often experience high rates of falls, which have been associated with age, disability, and increased postural sway. Additionally, people with Multiple Sclerosis often exhibit muscular weakness and poor responses to perturbations. PURPOSE: To determine if trunk stability and postural
control are altered among PwMS and if trunk muscle activity is correlated with postural stability. METHODS: Ten participants with a physician's diagnosis of Multiple Sclerosis (9 female, 1 male) were included in this study. Ten healthy controls were matched for age, height, weight, and gender. To analyze postural sway, participants stood quietly on a force platform for 30s with eyes closed and 30s with eyes open. Participants were then administered anticipated and unanticipated perturbations to the trunk while in a semiseated position. Finally, participants underwent three maximum isometric contractions. Surface electromyography was collected at the erector spinae muscle group 3cm lateral to the L3 spinous process. High speed motion capture was used to determine peak accelerations of a reflective marker placed approximately at the C7 vertebrae. RESULTS: No statistical differences were observed in trunk accelerations following perturbations. However, people with multiple sclerosis exhibit significantly greater trunk muscle activity following anticipated perturbations (p = 0.04, d = 0.98). Additionally, numerous large significant correlations were found between trunk muscle activity and postural sway. People with Multiple Sclerosis who experience falls appear to have greater trunk muscle activity following unanticipated perturbations than non-fallers (p = 0.07, d = 1.47). However, non-fallers may be better able to anticipate perturbations than fallers (p = 0.10, d = 1.29). CONCLUSION: People with Multiple Sclerosis demonstrate greater trunk muscle activity in response to perturbations than healthy controls. Trunk muscle activity is significantly correlated to postural sway in people with multiple sclerosis. People with Multiple Sclerosis who experience falls show greater trunk muscle activity following perturbations than non-fallers. However, non-fallers may be better able to anticipate perturbations than fallers.
Advisors/Committee Members: Bradley Bowser.
Subjects/Keywords: Biomechanics; Kinesiology; Motor Control
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Tolbert, D. (2018). Trunk Stability and Postural Stability in People with Multiple Sclerosis. (Masters Thesis). South Dakota State University. Retrieved from https://openprairie.sdstate.edu/etd/2487
Chicago Manual of Style (16th Edition):
Tolbert, Derek. “Trunk Stability and Postural Stability in People with Multiple Sclerosis.” 2018. Masters Thesis, South Dakota State University. Accessed March 04, 2021.
https://openprairie.sdstate.edu/etd/2487.
MLA Handbook (7th Edition):
Tolbert, Derek. “Trunk Stability and Postural Stability in People with Multiple Sclerosis.” 2018. Web. 04 Mar 2021.
Vancouver:
Tolbert D. Trunk Stability and Postural Stability in People with Multiple Sclerosis. [Internet] [Masters thesis]. South Dakota State University; 2018. [cited 2021 Mar 04].
Available from: https://openprairie.sdstate.edu/etd/2487.
Council of Science Editors:
Tolbert D. Trunk Stability and Postural Stability in People with Multiple Sclerosis. [Masters Thesis]. South Dakota State University; 2018. Available from: https://openprairie.sdstate.edu/etd/2487

University of Texas – Austin
30.
Lewis, Melissa Marie.
Effects of varying force levels and combinations of force application and release during an isometric pinch force task.
Degree: MSin Kinesiology, Kinesiology, 2014, University of Texas – Austin
URL: http://hdl.handle.net/2152/61671
► Fine motor control is important for the completion of many activities of daily living, such as writing, eating, buttoning a shirt, and texting. All these…
(more)
▼ Fine
motor control is important for the completion of many activities of daily living, such as writing, eating, buttoning a shirt, and texting. All these tasks require a high amount of continuous coordination and regulation of increasing and decreasing forces between multiple digits using sub-maximal force levels to successfully accomplish the task. Thus understanding the coordination of force regulation by the thumb and index finger at these sub-maximal force levels is a relevant topic especially for rehabilitation and instrumentation. This study was designed to investigate how accuracy and smoothness of performance of an isometric pinch force tracking task is affected by changing the level of forces required to perform the task and by different combinations of application and release of force by the thumb and index finger. Twenty two healthy, right handed adult participants between the ages of 18-30 were asked to manipulate a cursor to track a moving target ball counterclockwise around a prescribed path using the thumb and index finger of the right hand only. The goal of the task was to keep the cursor as close as possible to the moving target throughout the entire trial. Each participant was given 50 practice trials: 25 at 24% MVC and 25 at 12% MVC. For the 40 experimental trials, participants returned 24 hours later to complete 10 trials at each of the following force levels: 4%, 8%, 16%, and 32%. RMSE and CVE were calculated for each digit (thumb and index finger) as well as the combined digits and were used as indicators of accuracy and smoothness, respectively. Results showed significant differences in all dependent variables with p-values less than 0.05. Task performance accuracy was found to decrease as force level increased, whereas smoothness was found to decrease as force level decreased for all three. These findings suggest that varying force levels and combinations of force application and force release can change performance of this fine
motor task and should be further investigated in order to better understand mechanisms involved and for implementing new designs of equipment and diagnostic tools.
Advisors/Committee Members: Abraham, Lawrence D. (advisor), Jensen, Jody (committee member).
Subjects/Keywords: Fine motor control; Visuomotor tracking
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Lewis, M. M. (2014). Effects of varying force levels and combinations of force application and release during an isometric pinch force task. (Masters Thesis). University of Texas – Austin. Retrieved from http://hdl.handle.net/2152/61671
Chicago Manual of Style (16th Edition):
Lewis, Melissa Marie. “Effects of varying force levels and combinations of force application and release during an isometric pinch force task.” 2014. Masters Thesis, University of Texas – Austin. Accessed March 04, 2021.
http://hdl.handle.net/2152/61671.
MLA Handbook (7th Edition):
Lewis, Melissa Marie. “Effects of varying force levels and combinations of force application and release during an isometric pinch force task.” 2014. Web. 04 Mar 2021.
Vancouver:
Lewis MM. Effects of varying force levels and combinations of force application and release during an isometric pinch force task. [Internet] [Masters thesis]. University of Texas – Austin; 2014. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/2152/61671.
Council of Science Editors:
Lewis MM. Effects of varying force levels and combinations of force application and release during an isometric pinch force task. [Masters Thesis]. University of Texas – Austin; 2014. Available from: http://hdl.handle.net/2152/61671
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