You searched for subject:(Sleep).
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3348 total matches.
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1.
Alaziz, Musaab Adil, 1980-.
A load-cell based in-bed body motion detection and classification system.
Degree: PhD, Electrical and Computer Engineering, 2017, Rutgers University
URL: https://rucore.libraries.rutgers.edu/rutgers-lib/55308/ 
► The basic necessity of sleep in our life is critically important to ensure our wellbeing. Sufficient sleep of good quality is highly desired in order…
(more)
▼ The basic necessity of
sleep in our life is critically important to ensure our wellbeing. Sufficient
sleep of good quality is highly desired in order to have enough energy to live. One of the main factors to measure
sleep quality is the amount of body motion during
sleep. In-bed motion detection is an important technique that can enable an array of applications, among which are
sleep monitoring and abnormal movement detection. When detection is combined with classification, it can be used to detect, notify, and recognize specific events, enabling us to focus on critical tasks. In this study, we present a low-cost, low-overhead, and highly robust system for in-bed movement detection and classification that uses low-end load cells. By observing the forces sensed by the load cells, placed under each bed leg, we can detect many different types of movements, and further classify them as big or small depending on magnitude of the force changes on the load cells. We have designed three different features, which we refer to as Log-Peak, Energy-Peak, and ZeroX-Valley, that can effectively extract body movement signals from load cell data that is collected through wireless links in an energy-efficient manner. After establishing feature values, we employ a simple threshold-based algorithm to detect and classify movements. We have conducted a thorough evaluation, that involves collecting data from 30 subjects who perform 27 pre-defined movements in an experiment. By comparing our detection and classification results against the ground truth captured by a video camera, we show the Log-Peak strategy can detect these 27 types of movements at an error rate of 6.3% while classifying them as big or small movements at an error rate of 4.2%. In the second part of this dissertation, we set out to achieve much finer body motion classification. Towards this goal, we define 9 classes of movements, and design a machine learning algorithm using Support Vector Machine (SVM) and Random Forest techniques to classify a movement into one of these 9 classes. In this way, we can find out which body parts are involved in every movement. For every movement, we have extracted 24 features and used them in our model. This movement classification system was evaluated on data collected from 40 subjects who performed 35 predefined movements in each experiment. The accuracy of our model is not the same for all classes of movements. On average, it correctly classifies 90% of movements. This model can be used conveniently for long-term home monitoring. To improve the classification accuracy, we investigate more machine learning techniques. We use Random Forest and XGBoost as additional classification tools. We apply multiple tree topologies for each technique to reach their best results. After examining various combinations, we achieve the final classification accuracy of 91.5%. Lastly, another in-bed motion detection system is built. We use a geophone sensor to detect body motions in bed, which we call MotionPhone.…
Advisors/Committee Members: Alaziz, Musaab Adil, 1980- (author), Zhang, Yanyong (chair), School of Graduate Studies.
Subjects/Keywords: Sleep
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APA (6th Edition):
Alaziz, Musaab Adil, 1. (2017). A load-cell based in-bed body motion detection and classification system. (Doctoral Dissertation). Rutgers University. Retrieved from https://rucore.libraries.rutgers.edu/rutgers-lib/55308/
Chicago Manual of Style (16th Edition):
Alaziz, Musaab Adil, 1980-. “A load-cell based in-bed body motion detection and classification system.” 2017. Doctoral Dissertation, Rutgers University. Accessed March 04, 2021.
https://rucore.libraries.rutgers.edu/rutgers-lib/55308/.
MLA Handbook (7th Edition):
Alaziz, Musaab Adil, 1980-. “A load-cell based in-bed body motion detection and classification system.” 2017. Web. 04 Mar 2021.
Vancouver:
Alaziz, Musaab Adil 1. A load-cell based in-bed body motion detection and classification system. [Internet] [Doctoral dissertation]. Rutgers University; 2017. [cited 2021 Mar 04].
Available from: https://rucore.libraries.rutgers.edu/rutgers-lib/55308/.
Council of Science Editors:
Alaziz, Musaab Adil 1. A load-cell based in-bed body motion detection and classification system. [Doctoral Dissertation]. Rutgers University; 2017. Available from: https://rucore.libraries.rutgers.edu/rutgers-lib/55308/
University of North Texas
2.
Sethi, Kevin J.
A Comparison of the Pittsburgh Sleep Quality Index, a New Sleep Questionnaire, and Sleep Diaries.
Degree: 2012, University of North Texas
URL: https://digital.library.unt.edu/ark:/67531/metadc177254/
► Self-report retrospective estimates of sleep behaviors are not as accurate as prospective estimates from sleep diaries, but are more practical for epidemiological studies. Therefore, it…
(more)
▼ Self-report retrospective estimates of
sleep behaviors are not as accurate as prospective estimates from
sleep diaries, but are more practical for epidemiological studies. Therefore, it is important to evaluate the validity of retrospective measures and improve upon them. The current study compared
sleep diaries to two self-report retrospective measures of
sleep, the commonly used Pittsburgh
Sleep Quality Index (PSQI) and a newly developed
sleep questionnaire (SQ), which assessed weekday and weekend
sleep separately. It was hypothesized that the new measure would be more accurate than the PSQI because it accounts for variability in
sleep throughout the week. The relative accuracy of the PSQI and SQ in obtaining estimates of total
sleep time (TST),
sleep efficiency (SE), and
sleep onset latency (SOL) was examined by comparing their mean differences from, and correlations with, estimates obtained by the
sleep diaries. Correlations of the PSQI and SQ with the
sleep diaries were moderate, with the SQ having significantly stronger correlations on the parameters of TST, SE, and
sleep quality ratings. The SQ also had significantly smaller mean differences from
sleep diaries on SOL and SE. The overall pattern of results indicated that the SQ performs better than the PSQI when compared to
sleep diaries.
Advisors/Committee Members: Taylor, Daniel J., Guarnaccia, Charles A., Boals, Adriel, 1973-.
Subjects/Keywords: Sleep; sleep diaries; sleep logs; sleep questionnaire; PSQI; Pittsburgh Sleep Quality Index; sleep measurements; validity
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NSYSU
3.
Wang, Yen-shi.
The detection of REM and Wake sleep stages by using EOG signals.
Degree: Master, Mechanical and Electro-Mechanical Engineering, 2008, NSYSU
URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0718108-170721
► To detect REM and wake stages in sleep, this study generates feature variables from the correlation of two-channel EOG signals and the amplitude of LEOG…
(more)
▼ To detect REM and wake stages in
sleep, this study generates feature variables from the correlation of two-channel EOG signals and the amplitude of LEOG signal. By using the VQ method to quantize these signals into different codewords and by calculating the number of appearances of these codewords, we are able to establish a feature vector for every epoch of the recorded EOG signals. Via a three-stage process, the personalized classification accuracy for REM and wake
sleep stages are about 95% and 86%, respectively. By combining these personalized classifiers to perform REM and wake stages detection for other unseen individuals, the classification accuracy for REM and wake
sleep stages, the classification accuracy become 85% and 92%. However, the sensitivity for the wake stage detection is merely 52%.
Advisors/Committee Members: Jiann-der Lee (chair), Chen-wen Yen (committee member), Liang-wen Hang (chair).
Subjects/Keywords: wake sleep; REM sleep
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APA ·
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Manager
APA (6th Edition):
Wang, Y. (2008). The detection of REM and Wake sleep stages by using EOG signals. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0718108-170721
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):
Wang, Yen-shi. “The detection of REM and Wake sleep stages by using EOG signals.” 2008. Thesis, NSYSU. Accessed March 04, 2021.
http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0718108-170721.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Wang, Yen-shi. “The detection of REM and Wake sleep stages by using EOG signals.” 2008. Web. 04 Mar 2021.
Vancouver:
Wang Y. The detection of REM and Wake sleep stages by using EOG signals. [Internet] [Thesis]. NSYSU; 2008. [cited 2021 Mar 04].
Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0718108-170721.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Wang Y. The detection of REM and Wake sleep stages by using EOG signals. [Thesis]. NSYSU; 2008. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0718108-170721
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Universiteit Utrecht
4.
Vijgh, B.H. van der.
A framework for sleep staging based on unobtrusive measurements.
Degree: 2011, Universiteit Utrecht
URL: http://dspace.library.uu.nl:8080/handle/1874/197304
► For diagnosis and research purposes, a person's sleep should be objectively quantified. Traditionally, sleep staging is performed by human experts via visual inspection of polysomnographic…
(more)
▼ For diagnosis and research purposes, a person's
sleep should be objectively quantified. Traditionally,
sleep staging is performed by human experts via visual inspection of polysomnographic (PSG) data
measured during the
sleep period. There are several drawbacks to this golden standard: the data are
acquired in a rather obtrusive manner and not in the natural
sleep environment of the sleeper, hereby
affecting the
sleep. Furthermore, this manual scoring is time consuming and prone to human errors.
Automatic
sleep staging models exist but typically perform binary classifications, e.g.
sleep/wake,
REM/NREM or light/deep
sleep classification and on the whole use obtrusively obtained measurements.
In this research we aim to develop a framework for classifying
sleep stages from unobtrusive
measurements, being measurements during which the participant is not disturbed and no sensors are
attached. Our current implementation is presented that constructs 3- and 4-step hypnograms (containing
wake, REM and NREM in the 3-step hypnogram and wake, REM, light
sleep and deep
sleep in the 4-step
hypnogram) utilizing body movement and respiration rate biosignals obtained during
sleep.
This current implementation of the framework consists of three modules that each use a unique way of
interpreting one or more of these biosignals and a fusion process. The modules partly employ adapted
versions of existing models for
sleep stage classification and partly newly developed models, grounded in
sleep physiology. The modules classify epochs of a person's
sleep based on one or more biosignals and
relevant
subject parameters such as age and gender. The framework ensures that each epoch is classified
by at least two different modules. A specialized fusion process analyses the output from the different
modules, merges the output into a final hypnogram and calculates a confidence level for each epoch
classification.
To compare the
sleep stages as derived from the current implementation of the framework with the
golden standard, a secondary analysis on an existing data set of 23 participants is performed. The results
are promising and show potential: the three modules perform binary classifications with 90%, 85% and
72% agreement to the golden standard, the fusion process corrects 61% of the classifications on which
the modules disagree and fuses the binary classifications in definitive 3- and 4-step hypnograms. During
this process the overall agreement drops significantly because all erroneous classifications of the
modules are added up, but due to the correction of erroneous classifications by the fusion process these
hypnograms maintain 69% and 51% agreement with the golden standard, respectively.
This degree is expected to increase significantly when the existing modules are improved, additional
modules are added to allow the fusion process to correct more erroneous classifications and the
parameterization of the modules is done simultaneously.
Also, the framework contains various technical advancements not found in other contemporary
sleep…
Advisors/Committee Members: Beun, Robbert-Jan.
Subjects/Keywords: sleep staging; unobtrusive; sleep
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APA ·
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Manager
APA (6th Edition):
Vijgh, B. H. v. d. (2011). A framework for sleep staging based on unobtrusive measurements. (Masters Thesis). Universiteit Utrecht. Retrieved from http://dspace.library.uu.nl:8080/handle/1874/197304
Chicago Manual of Style (16th Edition):
Vijgh, B H van der. “A framework for sleep staging based on unobtrusive measurements.” 2011. Masters Thesis, Universiteit Utrecht. Accessed March 04, 2021.
http://dspace.library.uu.nl:8080/handle/1874/197304.
MLA Handbook (7th Edition):
Vijgh, B H van der. “A framework for sleep staging based on unobtrusive measurements.” 2011. Web. 04 Mar 2021.
Vancouver:
Vijgh BHvd. A framework for sleep staging based on unobtrusive measurements. [Internet] [Masters thesis]. Universiteit Utrecht; 2011. [cited 2021 Mar 04].
Available from: http://dspace.library.uu.nl:8080/handle/1874/197304.
Council of Science Editors:
Vijgh BHvd. A framework for sleep staging based on unobtrusive measurements. [Masters Thesis]. Universiteit Utrecht; 2011. Available from: http://dspace.library.uu.nl:8080/handle/1874/197304
University of Cape Town
5.
Timol, Ridwana.
The relationship between elevated night-time Glucocorticoid activity and dreaming: a perspective on sleep-dependent memory consolidation.
Degree: Image, Psychology, 2017, University of Cape Town
URL: http://hdl.handle.net/11427/27382
► Background. The consolidation of episodic memory is particularly vulnerable to fluctuations in glucocorticoid levels, both during wakefulness and during sleep. Corticosteroid exposure is associated with…
(more)
▼ Background. The consolidation of episodic memory is particularly vulnerable to fluctuations in glucocorticoid levels, both during wakefulness and during
sleep. Corticosteroid exposure is associated with changes in endogenous glucocorticoid activity,
sleep disruption, episodic memory impairment, and reduced hippocampal volume. This dissertation had two primary aims. The first was to explore the relationship between corticosteroid exposure and
sleep-dependent memory processes, including dreaming, with special focus on associations between corticosteroid exposure and (a) night-time glucocorticoid activity and (b)
sleep organization. The second was to explore the neuroanatomical foundation for these relationships in young adults with asthma. To achieve these aims, I conducted three studies. Methods. Study 1 (N = 68) used a cross-sectional, matched-sample, quasiexperimental design to compare night-time salivary cortisol levels, memory performance preand post-
sleep,
sleep organization (measured using polysomnography), and dreaming in groups of asthmatics and non-asthmatics with varying degrees of corticosteroid exposure. Study 2 (N = 23) used a double-blind, randomized placebo-control true experimental design to test, in healthy young adults, the effects of a single 25 mg dose of prednisone on the same outcome measures. Study 3 (N = 19) used a quasi-experimental design to compare hippocampal volume of moderate-to-high corticosteroid-exposed asthmatics with that of matched healthy controls. That study also examined the relationship between (a) night-time cortisol levels and hippocampal volume, (b) night-time cortisol levels and declarative memory performance, (c) hippocampal volume and declarative memory performance. All participants were English-speaking university students, aged 18-39 years. Results. Studies 1 and 2 showed that, relative to healthy controls, night-time glucocorticoid activity was elevated and
sleep organization was disrupted in corticosteroidexposed individuals. Furthermore, there were significant inverse associations between glucocorticoid activity and (a) the organization of slow wave
sleep (SWS) and rapid-eye movement (REM)
sleep, (b) performance on both declarative and procedural memory tasks, and (c) the episodic memory content of dreams. There were significant positive associations between (a) the proportions and the organization of SWS and REM
sleep and performance on measures of both declarative and procedural memory, and (b) the organization of REM
sleep and the episodic content of dreams. Study 3 data analyses detected significantly smaller hippocampal volume in asthmatics relative to controls. Severity of asthma was inversely related to left hippocampal volume, but corticosteroid exposure alone was not. Furthermore, a smaller hippocampus was associated with better memory performance among healthy controls, but not among asthmatics. Conclusions. The association between the organization of SWS and REM
sleep and performance on measures of both declarative and procedural memory lends support to the…
Advisors/Committee Members: Thomas, Kevin G F (advisor).
Subjects/Keywords: Sleep Sciences; Sleep Disorders
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❌
APA ·
Chicago ·
MLA ·
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CSE |
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Manager
APA (6th Edition):
Timol, R. (2017). The relationship between elevated night-time Glucocorticoid activity and dreaming: a perspective on sleep-dependent memory consolidation. (Thesis). University of Cape Town. Retrieved from http://hdl.handle.net/11427/27382
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):
Timol, Ridwana. “The relationship between elevated night-time Glucocorticoid activity and dreaming: a perspective on sleep-dependent memory consolidation.” 2017. Thesis, University of Cape Town. Accessed March 04, 2021.
http://hdl.handle.net/11427/27382.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Timol, Ridwana. “The relationship between elevated night-time Glucocorticoid activity and dreaming: a perspective on sleep-dependent memory consolidation.” 2017. Web. 04 Mar 2021.
Vancouver:
Timol R. The relationship between elevated night-time Glucocorticoid activity and dreaming: a perspective on sleep-dependent memory consolidation. [Internet] [Thesis]. University of Cape Town; 2017. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/11427/27382.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Timol R. The relationship between elevated night-time Glucocorticoid activity and dreaming: a perspective on sleep-dependent memory consolidation. [Thesis]. University of Cape Town; 2017. Available from: http://hdl.handle.net/11427/27382
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Manchester
6.
Henry, Alasdair Lawrie.
A multi method examination of sleep disturbance in
patients with psoriasis.
Degree: 2018, University of Manchester
URL: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:314144
► Psoriasis is an immune-mediated chronic dermatological condition associated with a range of physical and psychological comorbidities, and a significant disease burden. Healthy sleep plays a…
(more)
▼ Psoriasis is an immune-mediated chronic
dermatological condition associated with a range of physical and
psychological comorbidities, and a significant disease burden.
Healthy
sleep plays a key role in maintaining health and wellbeing.
Conversely, chronic
sleep disturbance significantly increases the
risk of developing a range of physical and mental health conditions
if left untreated.
Sleep disturbance is a known feature of other
chronic conditions and is associated with disease-specific
influences and consequences. Therefore, given the links between
sleep, health and functioning, the experience of
sleep disturbance
in psoriasis was investigated using a multi-method approach.
Chapter One provides an overview of psoriasis and
sleep and the
potential impact psoriasis and
sleep disturbance can have on health
and wellbeing. Chapter Two identifies what is known from the
existing literature and the limitations of the studies reviewed.
From here a prospective research agenda was formulated. A
cross-sectional survey (Chapter Three) sought to address the gaps
in the literature by examining the extent, characteristics and
correlates of
sleep disturbance using validated measures. Chapter
Four then describes the first in-depth qualitative study exploring
the experience of
sleep disturbance in people with psoriasis. The
Common-Sense Model of Self-Regulation was used as a guiding
framework and facilitated exploration of beliefs, emotions and
behaviours associated with
sleep disturbance. This study provided
insights into the role of psoriasis specific factors, the impact of
sleep disturbance on daily life and the limited coping options
available. Using Experience Sampling Methodology, Chapter Five
examined the bi-directional and sequential relationships between
sleep disturbance and daytime variables in psoriasis. Multiple
daily assessments of psoriasis, mood, night-time experiences and
functioning were combined with actigraphy and
sleep dairies. This
study revealed possible treatment targets to improve
sleep and
daytime functioning. However, findings related to psoriasis were
contrary to previous chapters. The findings from the preceding
chapters were synthesised in Chapter Six. The methodologies used
were also critically appraised. Clinical implications were
discussed in addition to a brief overview of potential avenues for
future research.
Advisors/Committee Members: CORDINGLEY, LIS ME, CHISHOLM, ANNA A, KYLE, SIMON SD, Bundy, Christine, Cordingley, Lis, Chisholm, Anna, Kyle, Simon.
Subjects/Keywords: sleep; sleep disturbance; psoriasis
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Henry, A. L. (2018). A multi method examination of sleep disturbance in
patients with psoriasis. (Doctoral Dissertation). University of Manchester. Retrieved from http://www.manchester.ac.uk/escholar/uk-ac-man-scw:314144
Chicago Manual of Style (16th Edition):
Henry, Alasdair Lawrie. “A multi method examination of sleep disturbance in
patients with psoriasis.” 2018. Doctoral Dissertation, University of Manchester. Accessed March 04, 2021.
http://www.manchester.ac.uk/escholar/uk-ac-man-scw:314144.
MLA Handbook (7th Edition):
Henry, Alasdair Lawrie. “A multi method examination of sleep disturbance in
patients with psoriasis.” 2018. Web. 04 Mar 2021.
Vancouver:
Henry AL. A multi method examination of sleep disturbance in
patients with psoriasis. [Internet] [Doctoral dissertation]. University of Manchester; 2018. [cited 2021 Mar 04].
Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:314144.
Council of Science Editors:
Henry AL. A multi method examination of sleep disturbance in
patients with psoriasis. [Doctoral Dissertation]. University of Manchester; 2018. Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:314144
University of Manchester
7.
Henry, Alasdair.
A multi method examination of sleep disturbance in patients with psoriasis.
Degree: PhD, 2018, University of Manchester
URL: https://www.research.manchester.ac.uk/portal/en/theses/a-multi-method-examination-of-sleep-disturbance-in-patients-with-psoriasis(812759c0-79b7-47fc-b1da-b86748c038c4).html
;
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.823086
► Psoriasis is an immune-mediated chronic dermatological condition associated with a range of physical and psychological comorbidities, and a significant disease burden. Healthy sleep plays a…
(more)
▼ Psoriasis is an immune-mediated chronic dermatological condition associated with a range of physical and psychological comorbidities, and a significant disease burden. Healthy sleep plays a key role in maintaining health and wellbeing. Conversely, chronic sleep disturbance significantly increases the risk of developing a range of physical and mental health conditions if left untreated. Sleep disturbance is a known feature of other chronic conditions and is associated with disease-specific influences and consequences. Therefore, given the links between sleep, health and functioning, the experience of sleep disturbance in psoriasis was investigated using a multi-method approach. Chapter One provides an overview of psoriasis and sleep and the potential impact psoriasis and sleep disturbance can have on health and wellbeing. Chapter Two identifies what is known from the existing literature and the limitations of the studies reviewed. From here a prospective research agenda was formulated. A cross-sectional survey (Chapter Three) sought to address the gaps in the literature by examining the extent, characteristics and correlates of sleep disturbance using validated measures. Chapter Four then describes the first in-depth qualitative study exploring the experience of sleep disturbance in people with psoriasis. The Common-Sense Model of Self-Regulation was used as a guiding framework and facilitated exploration of beliefs, emotions and behaviours associated with sleep disturbance. This study provided insights into the role of psoriasis specific factors, the impact of sleep disturbance on daily life and the limited coping options available. Using Experience Sampling Methodology, Chapter Five examined the bi-directional and sequential relationships between sleep disturbance and daytime variables in psoriasis. Multiple daily assessments of psoriasis, mood, night-time experiences and functioning were combined with actigraphy and sleep dairies. This study revealed possible treatment targets to improve sleep and daytime functioning. However, findings related to psoriasis were contrary to previous chapters. The findings from the preceding chapters were synthesised in Chapter Six. The methodologies used were also critically appraised. Clinical implications were discussed in addition to a brief overview of potential avenues for future research.
Subjects/Keywords: sleep; sleep disturbance; psoriasis
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Record Details
Similar Records
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Henry, A. (2018). A multi method examination of sleep disturbance in patients with psoriasis. (Doctoral Dissertation). University of Manchester. Retrieved from https://www.research.manchester.ac.uk/portal/en/theses/a-multi-method-examination-of-sleep-disturbance-in-patients-with-psoriasis(812759c0-79b7-47fc-b1da-b86748c038c4).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.823086
Chicago Manual of Style (16th Edition):
Henry, Alasdair. “A multi method examination of sleep disturbance in patients with psoriasis.” 2018. Doctoral Dissertation, University of Manchester. Accessed March 04, 2021.
https://www.research.manchester.ac.uk/portal/en/theses/a-multi-method-examination-of-sleep-disturbance-in-patients-with-psoriasis(812759c0-79b7-47fc-b1da-b86748c038c4).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.823086.
MLA Handbook (7th Edition):
Henry, Alasdair. “A multi method examination of sleep disturbance in patients with psoriasis.” 2018. Web. 04 Mar 2021.
Vancouver:
Henry A. A multi method examination of sleep disturbance in patients with psoriasis. [Internet] [Doctoral dissertation]. University of Manchester; 2018. [cited 2021 Mar 04].
Available from: https://www.research.manchester.ac.uk/portal/en/theses/a-multi-method-examination-of-sleep-disturbance-in-patients-with-psoriasis(812759c0-79b7-47fc-b1da-b86748c038c4).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.823086.
Council of Science Editors:
Henry A. A multi method examination of sleep disturbance in patients with psoriasis. [Doctoral Dissertation]. University of Manchester; 2018. Available from: https://www.research.manchester.ac.uk/portal/en/theses/a-multi-method-examination-of-sleep-disturbance-in-patients-with-psoriasis(812759c0-79b7-47fc-b1da-b86748c038c4).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.823086
NSYSU
8.
Lee, Yi-Jung.
Automatic Detection of REM Sleep using different combinations of EEG,EOG and EMG signals.
Degree: Master, Mechanical and Electro-Mechanical Engineering, 2010, NSYSU
URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0715110-161124
► Since studies have revealed sleeping quality is highly related to our health conditions, sleep-medicine has attracted more and more attention in recent years. Sleep staging…
(more)
▼ Since studies have revealed sleeping quality is highly related to our health conditions,
sleep-medicine has attracted more and more attention in recent years.
Sleep staging is one of the most important elements of
sleep-medicine. Traditionally, itâs done by observing the information form of EEG, EOG and EMG signals. But this is almost not possible to achieve at home.
Automatic detection of REM
sleep is the main goal of this study. Via comparing the classification performances of different combinations of EEG, EOG and EMG signals, this study also tries to simplify the number of signal channels. By using features extracted from EEG, EOG and EMG signals, the back-propagation neural networks are used to distinguish REM and NREM
sleep. By refining the outputs of the neural networks, this study extensively test the efficacy of the proposed approach by using databases from two different
sleep centers. This work also investigates the influences of the number of signal channels, REM
sleep ratio, AHI, and age on classification results.
Data acquired from the
sleep centers of China Medical University Hospital (CMUH) and Sheng-Mei Hospital are arranged in ten different groups. For our largest datasets, which consists of 1318 subjects from CMUH, the results show that the proposed method achieves 95.5% epoch-to-epoch agreement with Cohen's Kappa 0.833, sensitivity 85.9% and specificity 97.3%. The generalization accuracy is 94.1% with Cohen's Kappa 0.782, sensitivity 78.5% and specificity 97.3%.
Advisors/Committee Members: Chang-Hung Lin (chair), Liang-Wen Hang (chair), Chen-Wen Yen (committee member).
Subjects/Keywords: sleep medicine; sleep staging; REM sleep detection; sleep technology
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APA (6th Edition):
Lee, Y. (2010). Automatic Detection of REM Sleep using different combinations of EEG,EOG and EMG signals. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0715110-161124
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):
Lee, Yi-Jung. “Automatic Detection of REM Sleep using different combinations of EEG,EOG and EMG signals.” 2010. Thesis, NSYSU. Accessed March 04, 2021.
http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0715110-161124.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Lee, Yi-Jung. “Automatic Detection of REM Sleep using different combinations of EEG,EOG and EMG signals.” 2010. Web. 04 Mar 2021.
Vancouver:
Lee Y. Automatic Detection of REM Sleep using different combinations of EEG,EOG and EMG signals. [Internet] [Thesis]. NSYSU; 2010. [cited 2021 Mar 04].
Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0715110-161124.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Lee Y. Automatic Detection of REM Sleep using different combinations of EEG,EOG and EMG signals. [Thesis]. NSYSU; 2010. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0715110-161124
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of North Texas
9.
Dietch, Jessica R.
Accuracy of Three Assessments of Sleep Timing, Duration and Efficiency Compared to a Single-Channel EEG Device.
Degree: 2019, University of North Texas
URL: https://digital.library.unt.edu/ark:/67531/metadc1538787/
► Poor sleep measured across many dimensions has been linked to adverse physical and mental health outcomes including cardiovascular disease, diabetes, cancer, increased mortality, depression, and…
(more)
▼ Poor
sleep measured across many dimensions has been linked to adverse physical and mental health outcomes including cardiovascular disease, diabetes, cancer, increased mortality, depression, and anxiety. Current research typically relies upon brief, subjective, inadequately validated methods to assess limited dimensions of
sleep, resulting in inaccurate measurements and possibly faulty conclusions. Specifically, research validating objective (e.g., actigraphy) and subjective (e.g.,
sleep diaries, retrospective surveys) measurement methods against the gold standard of polysomnography (PSG, an overnight
sleep study) is primarily limited by a) a lack of reliability based on too short (e.g., 24 or 48 hours) of an assessment period to capture night-to-night variability, b) a lack of ecological validity (e.g., full PSG in a laboratory setting), and c) a lack of generalizability due to limited or special populations (e.g., individuals with insomnia). Barriers such as prohibitive cost, extensive setup time, and personnel training requirements diminish the ability of researchers to conduct measurement comparison studies using gold standard measures like traditional PSG. These barriers can be circumvented with the use of low-cost, minimally invasive single-channel EEG devices (e.g., Zmachine), but to date few studies have employed these devices. The current study evaluated the accuracy of retrospective surveys,
sleep diaries, and actigraphy compared to a single-channel EEG device for assessment of
sleep timing, duration, and efficiency in participants' homes over one week using a broad community sample (N = 80). Actigraphy generally demonstrated the best agreement with Zmachine across
sleep variables, followed by diary and then survey. Circadian midpoint was the most consistent across measures, followed by
sleep duration and then
sleep efficiency. Implications and future directions are discussed.
Advisors/Committee Members: Taylor, Daniel J., Ruggero, Camilo J., Kelly, Kimberly.
Subjects/Keywords: sleep; measurement
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Queens University
10.
Gilboord, Melody.
Naptime in Full-Day Kindergarten
.
Degree: Education, 2014, Queens University
URL: http://hdl.handle.net/1974/12204
► The Ontario Ministry of Education’s guidelines for full-day kindergarten do not specifically mention naptime (Ontario Ministry of Education, 2010). This study sought to address the…
(more)
▼ The Ontario Ministry of Education’s guidelines for full-day kindergarten do not specifically mention naptime (Ontario Ministry of Education, 2010). This study sought to address the issue of naptime in full-day kindergarten. Focus groups and interviews were conducted to understand the perspectives of eighteen parent and teacher participants. Seven of the participants were kindergarten teachers, nine were parents. Two participants qualified to be both teacher and parent.
The main findings from this study demonstrated that parents and teachers considered the following to be advantages of naptime: (1) a nap allows a break that enables students to focus on afternoon learning, (2) a nap allows the behaviour of children to improve (3) some children are young and require a nap, (4) teachers use naptime to complete preparation for the next lesson, and (5) since school is a long day for children, a nap is required to ensure students will remain awake in the afternoon. The disadvantages of kindergarten naptime were identified as: (1) an afternoon nap is not useful for all students, (2) it takes away from time devoted to academics, (3) it negatively affects bedtimes and, (4) managing naptime is problematic. Additionally, more appealing alternatives to a naptime session were suggested: (1) Down Time which refers to activities that are quiet without any expectation that children will sleep, (2) Rest Time which includes an option to sleep or participate in quiet, individual activities, and (3) Quiet Time which is a period of time dedicated to quiet, individual activities without any intention of sleeping. It was suggested that only Junior Kindergarten students need a chance to nap, since it will help them focus in the afternoon. A synthesis of my findings suggests that a 30-minute rest time could be incorporated in the full-day Junior Kindergarten, but not Senior Kindergarten, program at the midday point.
Subjects/Keywords: sleep
;
kindergarten
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APA ·
Chicago ·
MLA ·
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CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Gilboord, M. (2014). Naptime in Full-Day Kindergarten
. (Thesis). Queens University. Retrieved from http://hdl.handle.net/1974/12204
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):
Gilboord, Melody. “Naptime in Full-Day Kindergarten
.” 2014. Thesis, Queens University. Accessed March 04, 2021.
http://hdl.handle.net/1974/12204.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Gilboord, Melody. “Naptime in Full-Day Kindergarten
.” 2014. Web. 04 Mar 2021.
Vancouver:
Gilboord M. Naptime in Full-Day Kindergarten
. [Internet] [Thesis]. Queens University; 2014. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/1974/12204.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Gilboord M. Naptime in Full-Day Kindergarten
. [Thesis]. Queens University; 2014. Available from: http://hdl.handle.net/1974/12204
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
11.
Bennett, Heather L.
Loss of Notch or JNK signaling results in FOXO dependent
compensatory sleep in C. elegans.
Degree: PhD, Molecular Biology, Cell Biology, and
Biochemistry, 2015, Brown University
URL: https://repository.library.brown.edu/studio/item/bdr:419453/
► Sleep is critical for recovery from stress, optimal learning, and viability. However, many genetic pathways involved in sleep regulation are poorly defined. The nematode Caenorhabditis…
(more)
▼ Sleep is critical for recovery from stress, optimal
learning, and viability. However, many genetic pathways involved in
sleep regulation are poorly defined. The nematode Caenorhabditis
elegans is an ideal model system to investigate mechanisms of
sleep
regulation. Previous studies in C. elegans identified the Notch and
JNK-1 signaling pathways, which both contribute to stress
tolerance, as important regulators of
sleep. Reduced Notch or JNK-1
signaling results in poor quality
sleep with low arousal thresholds
and increased quantity of
sleep. We hypothesized that the increased
sleep caused by reduced Notch or JNK-1 signaling was due to
homeostatic compensation because of poor quality
sleep. To test
this hypothesis, we introduced loss-of-function mutations in
DAF-16, a FOXO transcription factor known to control
sleep
homeostasis, into strains with reduced Notch or JNK-1 signaling. We
found that mutation of DAF-16 abrogated increased
sleep, even
though double mutant animals still had poor quality
sleep.
Therefore, increased compensatory
sleep in these animals requires a
DAF-16-dependent homeostatic response, but arousal threshold
changes do not. We also determined that
sleep deprivation is lethal
only when combined with the stress of mechanical stimulation.
Together, these results confirm that Notch and JNK-1 are required
for normal
sleep depth and that DAF-16 is a key component of C.
elegans stress response that regulates compensatory
sleep.
Advisors/Committee Members: Hart, Anne (Director), Wharton, Kristi (Reader), Reenan, Robert (Reader), Kaun, Karla (Reader), Raizen, David (Reader).
Subjects/Keywords: compensatory sleep
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Bennett, H. L. (2015). Loss of Notch or JNK signaling results in FOXO dependent
compensatory sleep in C. elegans. (Doctoral Dissertation). Brown University. Retrieved from https://repository.library.brown.edu/studio/item/bdr:419453/
Chicago Manual of Style (16th Edition):
Bennett, Heather L. “Loss of Notch or JNK signaling results in FOXO dependent
compensatory sleep in C. elegans.” 2015. Doctoral Dissertation, Brown University. Accessed March 04, 2021.
https://repository.library.brown.edu/studio/item/bdr:419453/.
MLA Handbook (7th Edition):
Bennett, Heather L. “Loss of Notch or JNK signaling results in FOXO dependent
compensatory sleep in C. elegans.” 2015. Web. 04 Mar 2021.
Vancouver:
Bennett HL. Loss of Notch or JNK signaling results in FOXO dependent
compensatory sleep in C. elegans. [Internet] [Doctoral dissertation]. Brown University; 2015. [cited 2021 Mar 04].
Available from: https://repository.library.brown.edu/studio/item/bdr:419453/.
Council of Science Editors:
Bennett HL. Loss of Notch or JNK signaling results in FOXO dependent
compensatory sleep in C. elegans. [Doctoral Dissertation]. Brown University; 2015. Available from: https://repository.library.brown.edu/studio/item/bdr:419453/
University of Connecticut
12.
Burbridge, Caitlin.
The Impact of Breast Cancer Screening on Sleep, Affect, and Immune Functioning.
Degree: MA, Psychology, 2011, University of Connecticut
URL: https://opencommons.uconn.edu/gs_theses/195
► Despite great strides that have been made over the past several decades in terms of diagnosis and treatment, breast cancer remains the most commonly…
(more)
▼ Despite great strides that have been made over the past several decades in terms of diagnosis and treatment, breast cancer remains the most commonly diagnosed cancer in American women and the second leading cause of cancer-related mortality for women in the United States. Although the benefits of early detection of breast cancer have been clearly established, the advantages of screening must also be weighed against a potential corresponding negative psychological impact of screening procedures. The purpose of the present study was to further investigate the impact of breast cancer screening on previously unstudied or understudied aspects of psychological and physiological health, including
sleep quality, negative and positive affect, and biomarkers of immune system response and to explore between-group differences in these markers based on diagnostic status over the course of time between surgical consult and diagnosis following breast biopsy. Results indicated substantially impaired
sleep quality as well as elevations in negative affect across the study sample. Higher levels of a biological marker of inflammation were shown to be associated with poorer
sleep quality. Positive and negative affect were also associated in the study sample, which is thought to be indicative of a high level of emotional activation during breast cancer screening and diagnosis. Counter to study hypotheses, results indicated neither improvements in
sleep quality or affect nor decreased levels of serum cytokines were noted in women who received a benign diagnosis. Conversely, results for several scales indicated improved
sleep quality for women diagnosed with breast cancer relative to women who received a benign diagnosis, providing support for the argument that it is the experience of uncertainty that leads to the acute psychological distress consistently shown in women undergoing breast cancer screening and breast biopsy.
Advisors/Committee Members: Sarah Hodgson, Jayesh Kamath, Dean Cruess.
Subjects/Keywords: sleep; immune
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APA ·
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MLA ·
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CSE |
Export
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Manager
APA (6th Edition):
Burbridge, C. (2011). The Impact of Breast Cancer Screening on Sleep, Affect, and Immune Functioning. (Masters Thesis). University of Connecticut. Retrieved from https://opencommons.uconn.edu/gs_theses/195
Chicago Manual of Style (16th Edition):
Burbridge, Caitlin. “The Impact of Breast Cancer Screening on Sleep, Affect, and Immune Functioning.” 2011. Masters Thesis, University of Connecticut. Accessed March 04, 2021.
https://opencommons.uconn.edu/gs_theses/195.
MLA Handbook (7th Edition):
Burbridge, Caitlin. “The Impact of Breast Cancer Screening on Sleep, Affect, and Immune Functioning.” 2011. Web. 04 Mar 2021.
Vancouver:
Burbridge C. The Impact of Breast Cancer Screening on Sleep, Affect, and Immune Functioning. [Internet] [Masters thesis]. University of Connecticut; 2011. [cited 2021 Mar 04].
Available from: https://opencommons.uconn.edu/gs_theses/195.
Council of Science Editors:
Burbridge C. The Impact of Breast Cancer Screening on Sleep, Affect, and Immune Functioning. [Masters Thesis]. University of Connecticut; 2011. Available from: https://opencommons.uconn.edu/gs_theses/195
University of Houston
13.
Meers, Jessica M.
Sleep Spindle Density in Generally-Anxious Children and Healthy Controls.
Degree: MA, Psychology, Clinical, 2019, University of Houston
URL: http://hdl.handle.net/10657/4635
► Childhood generalized anxiety disorder (GAD) is impairing and elevates risk for long-term psychopathology. Precise mechanisms underlying maladaptive versus adaptive developmental trajectories are largely unknown and…
(more)
▼ Childhood generalized anxiety disorder (GAD) is impairing and elevates risk for long-term psychopathology. Precise mechanisms underlying maladaptive versus adaptive developmental trajectories are largely unknown and neurophysiological characteristics that serve as markers of long-term psychiatric risk have not been identified. Investigations of ‘micro’ aspects of
sleep have been found to be associated with emotional health and may provide greater understanding of
sleep and emotional dysfunction in anxious youth, and help to identify children at the highest levels of long-term risk.
Sleep spindles, defined as short bursts of cortical activity that predominate non-REM stage 2
sleep, reflect one such micro-architectural feature of
sleep. A few studies indicate depressed and anxious youth show less frequent spindle activity compared to controls, with the highest spindle activity observed in healthy girls. The objective of the current study was to evaluate spindles in children with GAD compared to healthy controls. Non-REM spindle activity a sample of 58 children aged 7 to 11 who completed diagnostic assessments and overnight polysomnography was examined for sex and diagnostic group differences. The relationship between spindle activity, symptom severity, and subjective
sleep quality was also explored. Results indicated no diagnostic or group differences in
sleep spindle activity and spindles did not predict
sleep quality.
Sleep spindles were, however, positively associated with worry symptoms in all children. These findings suggest that rather than a marker for general emotional pathology,
sleep spindle activity may be a neurological product of specific type of cognitive-affective symptoms.
Advisors/Committee Members: Alfano, Candice A. (committee member), Leasure, J. Leigh (committee member), Bick, Johanna R. (committee member).
Subjects/Keywords: Sleep; Anxiety
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Meers, J. M. (2019). Sleep Spindle Density in Generally-Anxious Children and Healthy Controls. (Masters Thesis). University of Houston. Retrieved from http://hdl.handle.net/10657/4635
Chicago Manual of Style (16th Edition):
Meers, Jessica M. “Sleep Spindle Density in Generally-Anxious Children and Healthy Controls.” 2019. Masters Thesis, University of Houston. Accessed March 04, 2021.
http://hdl.handle.net/10657/4635.
MLA Handbook (7th Edition):
Meers, Jessica M. “Sleep Spindle Density in Generally-Anxious Children and Healthy Controls.” 2019. Web. 04 Mar 2021.
Vancouver:
Meers JM. Sleep Spindle Density in Generally-Anxious Children and Healthy Controls. [Internet] [Masters thesis]. University of Houston; 2019. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/10657/4635.
Council of Science Editors:
Meers JM. Sleep Spindle Density in Generally-Anxious Children and Healthy Controls. [Masters Thesis]. University of Houston; 2019. Available from: http://hdl.handle.net/10657/4635
University of Adelaide
14.
Biggs, Sarah N.
Sleep/wake patterns and sleep problems in South Australian children aged 5-10 years: biopsychosocial determinants and effects on behaviour.
Degree: 2010, University of Adelaide
URL: http://hdl.handle.net/2440/61910
► In 1913, Lewis Terman and his colleague, Adeline Hocking published a paper asking a seemingly simple question “But exactly how much sleep is required by…
(more)
▼ In 1913, Lewis Terman and his colleague, Adeline Hocking published a paper asking a seemingly simple question “But exactly how much
sleep is required by this developing organism (child) for its healthy functioning and growth?” (Bracketed italics added). Almost 100 years later, this question remains largely unanswered. Whilst it is well acknowledged that
sleep duration decreases as a child ages, changing
sleep practices are determined not only by biological processes, but also by cultural and social influences. Few studies to date have adequately addressed this. It is also well acknowledged that
sleep problems in childhood are common, yet research is limited due to lack of standard methodological protocols. Accurate knowledge of poor
sleep/wake habits and prevalence of
sleep problems may be vital to ensuring the behavioural well-being of many children.
The following thesis presents the results of the South Australian Paediatric
Sleep Survey (SAPSS); a study designed to address the above limitations and examine
sleep/wake patterns,
sleep problems and behavioural associates in a large community sample of school-aged children in Australia. Using a combination of previous tools and author devised items, a
sleep, health and behaviour questionnaire was developed and subjected to rigourous psychometric testing. Exploratory factor analysis revealed six robust factors:
Sleep Routine, Bedtime Anxiety, Morning Tiredness, Night Arousals,
Sleep Disordered Breathing, and Restless
Sleep. These sub-scales demonstrated good internal reliability, face validity, and test-retest reliability at 6, 12 and 18 m The SAPSS questionnaire was distributed to parents of children through schools and provides the first indication of normative
sleep/wake patterns in a representative sample of school-aged children in Australia (N=1904; mean age 7.7±1.7yrs). The results of this study add to the discussion that the process of
sleep is embedded in cultural and social norms, with differences reported between Non-Caucasian and Caucasian children, as well as between weekend and school nights. These results also confirm the postulation that
sleep and behaviour are inextricably linked. Bedtime anxiety, restless
sleep, night arousals, bruxism, hyperhydrosis and sleepwalking were all associated with behavioural deficits, either independently or comorbidly.
Moreover, the SAPSS adds considerably to the current state of knowledge by revealing a regular
sleep routine, in otherwise healthy children, has the strongest effect on daytime functioning. In addition to the traditional indicators of
sleep/wake patterns, the current study examined
sleep schedules, in particular the consistency of bedtimes, risetimes and
sleep duration. More children reported poor
sleep schedules than traditional indicators of poor
sleep habits and a change in bedtimes greater than 2 hours across the week or a poor
sleep routine resulted in up to four times the risk of reported behavioural problems.
The current paradigm regarding
sleep in children is that ‘one size fits all’, however…
Advisors/Committee Members: van den Heuvel, Cameron Jay (advisor), School of Paediatrics and Reproductive Health : Paediatrics (school).
Subjects/Keywords: sleep; children; behaviour; Sleep.; Sleep disorders in children.; Children Sleep
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Biggs, S. N. (2010). Sleep/wake patterns and sleep problems in South Australian children aged 5-10 years: biopsychosocial determinants and effects on behaviour. (Thesis). University of Adelaide. Retrieved from http://hdl.handle.net/2440/61910
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):
Biggs, Sarah N. “Sleep/wake patterns and sleep problems in South Australian children aged 5-10 years: biopsychosocial determinants and effects on behaviour.” 2010. Thesis, University of Adelaide. Accessed March 04, 2021.
http://hdl.handle.net/2440/61910.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Biggs, Sarah N. “Sleep/wake patterns and sleep problems in South Australian children aged 5-10 years: biopsychosocial determinants and effects on behaviour.” 2010. Web. 04 Mar 2021.
Vancouver:
Biggs SN. Sleep/wake patterns and sleep problems in South Australian children aged 5-10 years: biopsychosocial determinants and effects on behaviour. [Internet] [Thesis]. University of Adelaide; 2010. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/2440/61910.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Biggs SN. Sleep/wake patterns and sleep problems in South Australian children aged 5-10 years: biopsychosocial determinants and effects on behaviour. [Thesis]. University of Adelaide; 2010. Available from: http://hdl.handle.net/2440/61910
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Oxford
15.
Purple, Ross.
Sleep physiology, circadian rhythms, and the risk for developing psychosis.
Degree: PhD, 2017, University of Oxford
URL: http://ora.ox.ac.uk/objects/uuid:788031c2-62ef-44f1-9dd7-8b3a7be53057
;
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.736062
► Sleep and circadian rhythm disruption (SCRD) is frequently found to co-occur in psychotic disorders. This can include a range of phenotypes such as insomnia, circadian…
(more)
▼ Sleep and circadian rhythm disruption (SCRD) is frequently found to co-occur in psychotic disorders. This can include a range of phenotypes such as insomnia, circadian delays, deficits in sleep spindles, and sleep-dependent cognitive impairments. However, increasing evidence suggests that psychosis occurs across a continuum of severity within the general population, yet few studies have investigated sleep and circadian rhythms prior to clinical diagnosis. Furthermore, SCRD and psychosis are posited to share underlying neuropathologies and although increasing evidence implicates shared genetic influence, little is known of the shared environmental risk. This thesis investigates sleep and circadian rhythms at multiple levels, from their occurrence in the general population, their disruption in high risk individuals, and a focus on sleep spindle oscillations in the brain. Firstly, the relationship between subjective measures of sleep and circadian rhythms, risk factors for psychosis, and psychotic-like experiences (PLEs) were studied in a large population sample. All three were highly related, with a subset of risk factors showing a strong association to both PLEs and SCRD. Secondly, sleep and circadian rhythms were assessed in individuals at high risk for developing psychosis based upon having a high load of risk factors and sub-clinical psychotic symptoms. High risk individuals showed subjective SCRD but this was not reflected in objective measures assessed by actigraphy and polysomnography. A subset of high risk individuals further showed substantially later melatonin rhythms compared to a low risk group. Thirdly, high and low risk individuals were assessed for measures of declarative and procedural sleep dependent memory consolidation. High risk individuals showed no evidence for sleep dependent cognitive impairment but did show a potential sensitivity in performance to the amount of sleep, not seen in low risk individuals. Finally, recordings in the somatosensory cortex (SCx) of mice were used as a model to explore the spatio-temporal dynamics and functional significance of sleep spindles. Distinct highly localised spindle events were discovered in the anterior SCx, with their complete absence just a fraction of a millimetre away, and their occurrence of which coincided with unique responses to global vigilance states. Together, this work pioneers research into sleep and circadian phenotypes associated with both sub-clinical psychotic symptoms and risk factors for disease and furthers our knowledge of particular sleep processes which could collectively help us to understand why SCRD and psychosis develop.
Subjects/Keywords: 616.89; Sleep
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Purple, R. (2017). Sleep physiology, circadian rhythms, and the risk for developing psychosis. (Doctoral Dissertation). University of Oxford. Retrieved from http://ora.ox.ac.uk/objects/uuid:788031c2-62ef-44f1-9dd7-8b3a7be53057 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.736062
Chicago Manual of Style (16th Edition):
Purple, Ross. “Sleep physiology, circadian rhythms, and the risk for developing psychosis.” 2017. Doctoral Dissertation, University of Oxford. Accessed March 04, 2021.
http://ora.ox.ac.uk/objects/uuid:788031c2-62ef-44f1-9dd7-8b3a7be53057 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.736062.
MLA Handbook (7th Edition):
Purple, Ross. “Sleep physiology, circadian rhythms, and the risk for developing psychosis.” 2017. Web. 04 Mar 2021.
Vancouver:
Purple R. Sleep physiology, circadian rhythms, and the risk for developing psychosis. [Internet] [Doctoral dissertation]. University of Oxford; 2017. [cited 2021 Mar 04].
Available from: http://ora.ox.ac.uk/objects/uuid:788031c2-62ef-44f1-9dd7-8b3a7be53057 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.736062.
Council of Science Editors:
Purple R. Sleep physiology, circadian rhythms, and the risk for developing psychosis. [Doctoral Dissertation]. University of Oxford; 2017. Available from: http://ora.ox.ac.uk/objects/uuid:788031c2-62ef-44f1-9dd7-8b3a7be53057 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.736062
University of Oxford
16.
Guillaumin, Mathilde.
Investigating the genetic basis of sleep using forward genetics.
Degree: PhD, 2018, University of Oxford
URL: http://ora.ox.ac.uk/objects/uuid:126e9ed6-d0f8-4100-9f09-a39c2add9d4f
;
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.770736
► The alternation between waking and sleep is regulated by the internal circadian clock and sleep-wake history, and is also influenced by the external environment. Although…
(more)
▼ The alternation between waking and sleep is regulated by the internal circadian clock and sleep-wake history, and is also influenced by the external environment. Although our understanding of the circadian aspect of sleep regulation has increased, the mechanisms underlying sleep homeostasis are still largely unknown. Independent of the circadian clock, only a limited number of genes have been associated with specific sleep-wake properties. Forward genetics provides an unbiased approach, which seeks to identify genes involved in specific biological processes. This project has focused on the Sleepy6 mouse line which was obtained via a forward genetics sleep screen. This model has a mutation in synaptobrevin 2, which results in a decreased sleep duration. We aimed to further characterise the sleep phenotype of this line, at a molecular and behavioural level, to gain novel insights into the regulation of sleep. Using molecular techniques to evaluate neurotransmitter levels and gene expression, we found no significant differences in the neurotransmitter pathways investigated. Behavioural assays highlighted hyperactivity, with a mild learning deficit. Electrophysiology recordings from the motor (M1) and visual (V1) cortical areas revealed that Sleepy6 homozygous mice have reduced amounts of rapid-eye movement sleep (REMS) and a strong decrease in the amplitude of electroencephalography (EEG) and local field potential (LFP) signals, especially during non-REMS when traces are reminiscent of the burst suppression patterns often observed during anaesthesia, rather than natural sleep. At a local level, neuronal firing in Sleepy6 homozygotes ceased for seconds at a time during non-REMS, coinciding with very low-amplitude EEG and LFP traces. Sleepy6 homozygous mice also displayed a longer latency to switch between vigilance states. Finally, the successful adaption of an elaborated version of the "two-process" model of sleep regulation to recordings performed in mice suggests that sleep pressure decreases at a slower rate in Sleepy6 homozygotes. This result should be interpreted in light of the above findings, as the model relies on power in the slow-wave (0.5-4 Hz) range during non-REMS, which is affected by the very low-amplitude oscillations observed in this state in Sleepy6 homozygotes. This combination of in vivo and computational work using the Sleepy6 line provides new insights into the mechanisms that underlie sleep architecture and the alternation between vigilance states. It also has the potential to further our understanding of the mechanisms underpinning the generation of slow-waves and anaesthesia.
Subjects/Keywords: Neurosciences; Sleep
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APA (6th Edition):
Guillaumin, M. (2018). Investigating the genetic basis of sleep using forward genetics. (Doctoral Dissertation). University of Oxford. Retrieved from http://ora.ox.ac.uk/objects/uuid:126e9ed6-d0f8-4100-9f09-a39c2add9d4f ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.770736
Chicago Manual of Style (16th Edition):
Guillaumin, Mathilde. “Investigating the genetic basis of sleep using forward genetics.” 2018. Doctoral Dissertation, University of Oxford. Accessed March 04, 2021.
http://ora.ox.ac.uk/objects/uuid:126e9ed6-d0f8-4100-9f09-a39c2add9d4f ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.770736.
MLA Handbook (7th Edition):
Guillaumin, Mathilde. “Investigating the genetic basis of sleep using forward genetics.” 2018. Web. 04 Mar 2021.
Vancouver:
Guillaumin M. Investigating the genetic basis of sleep using forward genetics. [Internet] [Doctoral dissertation]. University of Oxford; 2018. [cited 2021 Mar 04].
Available from: http://ora.ox.ac.uk/objects/uuid:126e9ed6-d0f8-4100-9f09-a39c2add9d4f ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.770736.
Council of Science Editors:
Guillaumin M. Investigating the genetic basis of sleep using forward genetics. [Doctoral Dissertation]. University of Oxford; 2018. Available from: http://ora.ox.ac.uk/objects/uuid:126e9ed6-d0f8-4100-9f09-a39c2add9d4f ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.770736
17.
Perez, Michael Helio.
The role of 5-aminolevulinic acid (5-ALA) and sleep.
Degree: 2016, University of Hawaii – Manoa
URL: http://hdl.handle.net/10125/101989
► Ph.D. University of Hawaii at Manoa 2013.
Objective: To determine if there is a relationship between the administration of the dietary supplement containing 5-Aminolevulinic Acid…
(more)
▼ Ph.D. University of Hawaii at Manoa 2013.
Objective: To determine if there is a relationship between the administration of the dietary supplement containing 5-Aminolevulinic Acid (5-ALA) and sleep.
Methods: A double-blind, randomized parallel-group study was conducted. It was a 4 month study of 40 participants between the ages of 40 and 70. Males and females were recruited equally. There were 20 in each group who had existing sleep disorders, excluding sleep apnea and Restless Leg Syndrome (RLS). The tools used to measure participant sleep improvement included: the Body Mass Index (BMI-a measure of body fat based on height and weight), a daily diary and the Pittsburgh Insomnia Rating Scale – 20 Question (PIRS-20). The PIRS-20 design suggests improved sleep when the total score is lower.
Results: Improvement in sleep in the group taking 50 mg 5-ALA, compared to controls, was significant. The mean change, from baseline through week 6, was-5.67 units less on the sleep scale than the control group with a p value of .001.
The mean change from week 6 to week 10 when the participant was no longer taking the supplement was 4.55 units higher than the control with a p value of .062, which is of borderline significance.
Conclusion: There appears to be a relationship between the administration of dietary supplements containing 5-ALA and sleep. The results of this study suggest that 5-ALA does in fact improve sleep. The mechanism for sleep improvement needs to be explored.
Subjects/Keywords: sleep
…Sodium Ferrous Citrate
SSS
Supplement Sleep Study
5-ALA
5-Aminolevulinic Acid
vii… …potential relationship between 5-ALA and improved sleep and its mode of action
will then be… …exists between the administration of
dietary supplements containing 5-ALA and sleep.
The… …production might provide evidence that
explains why 5-ALA has a relationship with sleep.
3… …investigation.
Sleep and 5-ALA
In a previous study conducted to examine the relationship between 5-ALA…
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APA (6th Edition):
Perez, M. H. (2016). The role of 5-aminolevulinic acid (5-ALA) and sleep. (Thesis). University of Hawaii – Manoa. Retrieved from http://hdl.handle.net/10125/101989
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):
Perez, Michael Helio. “The role of 5-aminolevulinic acid (5-ALA) and sleep.” 2016. Thesis, University of Hawaii – Manoa. Accessed March 04, 2021.
http://hdl.handle.net/10125/101989.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Perez, Michael Helio. “The role of 5-aminolevulinic acid (5-ALA) and sleep.” 2016. Web. 04 Mar 2021.
Vancouver:
Perez MH. The role of 5-aminolevulinic acid (5-ALA) and sleep. [Internet] [Thesis]. University of Hawaii – Manoa; 2016. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/10125/101989.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Perez MH. The role of 5-aminolevulinic acid (5-ALA) and sleep. [Thesis]. University of Hawaii – Manoa; 2016. Available from: http://hdl.handle.net/10125/101989
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Brock University
18.
Martin, Cory Roy.
A microanalysis of EMG and EEG changes during the sleep onset period (SOP) : a theoretical investigation with practical applications
.
Degree: Department of Psychology, 2002, Brock University
URL: http://hdl.handle.net/10464/2727
► The present study has both theoretical and practical aspects. The theoretical intent of the study was to closely examine the relationship between muscle activity (EMG)…
(more)
▼ The present study has both theoretical and practical aspects. The theoretical intent
of the study was to closely examine the relationship between muscle activity (EMG) and
EEG state during the process of falling asleep. Sleep stages during sleep onset (SO) have
been generally defined with regards to brain wave activity (Recht schaff en & Kales
(1968); and more precisely by Hori, Hayashi, & Morikawa (1994)). However, no
previous study has attempted to quantify the changes in muscle activity during this same
process.
The practical aspect of the study examined the reliability ofa commercially
developed wrist-worn alerting device (NovAlert™) that utilizes changes in muscle
activity/tension in order to alert its user in the event that he/she experiences reduced
wakefulness that may result in dangerous consequences.
Twelve female participants (aged 18-42) sp-ent three consecutive nights in the
sleep lab ("Adaptation", "EMG", and "NOVA" nights). Each night participants were
given 5, twenty-minute nap opportunities. On the EMG night, participants were allowed
to fall asleep freely. On the NOV A night, participants wore the Nov Alert™ wrist device
that administered a Psychomotor Vigilance Test (PVT) when it detected that muscle
activity levels had dropped below baseline.
Nap sessions were scored using Hori's 9-stage scoring system (Hori et aI, 1994).
Power spectral analyses (FFT) were also performed. Effects ofthe PVT administration on
EMG and EEG frequencies were also examined.
Both chin and wrist EMG activity showed reliable and significant decline during
the early stages ofHori staging (stages HO to H3 characterized by decreases in alpha activity). All frequency bands studied went through significant changes as the
participants progressed through each ofHori's 9 SO stages. Delta, theta, and sigma
activity increased later in the SO continuum while a clear alpha dominance shift was
noted as alpha activity shifted from the posterior regions of the brain (during Hori stages
HO to H3) to the anterior portions (during Hori stages H7 to H9). Administration of the
PVT produced significant increases in EMG activity and was effective in reversing
subjective drowsiness experienced during the later stages of sleep onset. Limitations of
the alerting effects of the PVTs were evident following 60 to 75 minutes of use in that
PVTs delivered afterwards were no longer able to significantly increase EMG levels.
The present study provides a clearer picture of the changes in EMG and EEG
during the sleep onset period while testing the efficacy of a commercially developed
alerting device. EMG decreases were found to begin during Hori stage 0 when EEG was
-
dominated by alpha wave activity and were maximal as Hori stages 2 to 5 were traversed
(coincident with alpha and beta activity). This signifies that EMG decrements and the
loss of resting alpha activity are closely related. Since decreased alpha has long been
associated with drowsiness and impending sleep, this investigation links drops in muscle
tone…
Subjects/Keywords: Sleep
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Manager
APA (6th Edition):
Martin, C. R. (2002). A microanalysis of EMG and EEG changes during the sleep onset period (SOP) : a theoretical investigation with practical applications
. (Thesis). Brock University. Retrieved from http://hdl.handle.net/10464/2727
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, Cory Roy. “A microanalysis of EMG and EEG changes during the sleep onset period (SOP) : a theoretical investigation with practical applications
.” 2002. Thesis, Brock University. Accessed March 04, 2021.
http://hdl.handle.net/10464/2727.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Martin, Cory Roy. “A microanalysis of EMG and EEG changes during the sleep onset period (SOP) : a theoretical investigation with practical applications
.” 2002. Web. 04 Mar 2021.
Vancouver:
Martin CR. A microanalysis of EMG and EEG changes during the sleep onset period (SOP) : a theoretical investigation with practical applications
. [Internet] [Thesis]. Brock University; 2002. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/10464/2727.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Martin CR. A microanalysis of EMG and EEG changes during the sleep onset period (SOP) : a theoretical investigation with practical applications
. [Thesis]. Brock University; 2002. Available from: http://hdl.handle.net/10464/2727
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Rutgers University
19.
Peters, Suzanne E.
Dense array EEG measures of infant sleep: microstructure and topography as biomarkers of cognitive development.
Degree: PhD, Behavioral and Neural Sciences, 2017, Rutgers University
URL: https://rucore.libraries.rutgers.edu/rutgers-lib/55284/
► The research presented here addresses topical and critical questions regarding the role of sleep as a facilitator of brain maturation and cognitive outcomes and examines…
(more)
▼ The research presented here addresses topical and critical questions regarding the role of sleep as a facilitator of brain maturation and cognitive outcomes and examines how the topography and microstructure (i.e. sleep spindles and slow waves) of infant sleep brain rhythms may support these developmental processes. Although extensive research has been conducted on sleep in animal models, in adults and in premature neonates, very little is known about the neurophysiology of sleep in healthy human infants. Current research suggests that alterations in sleep pattern or duration play a role in almost all known mental disorders and furthermore, that virtually all of these disorders are rooted in a miswiring of the brain during development. Therefore, it is understandable that variability in sleep patterns has gained attention as a possible early biomarker for a number of neurodevelopmental disorders. Identification of reliable biomarkers could lead to targeted diagnostic tools that would be useful in diagnosing a number of developmental disorders. This dissertation is a first step toward a more comprehensive understanding of sleep microstructure (e.g. sleep spindles and slow waves), which is hypothesized to play a critical role in infant brain maturation. We have examined infant daytime sleep (non-rapid-eye-movement, NREM) in a rarely studied age group (3.5 and 6.5 months), using advanced dense-array electroencephalographic recording (dEEG) and analytic techniques seldom used in sleep studies, in combination with concurrent standardized assessments of cognition, language, and motor skill development. In this thesis, we have characterized spectral power and frequency changes of brain activity across the frequency spectrum (0.25-35Hz), in both a cross-sectional and a longitudinal group. From these analyses, we demonstrate that both maturational and trait-like aspects of regional NREM sleep oscillations are present in our sample of typically developing infants. Further, at 6.5 months-of-age, sleep spindle topography is sexually dimorphic, correlated with language measures, and functionally left-lateralized. In both the cross-sectional and longitudinal groups, and in both age ranges, there are significant positive and negative correlations of spectral power at different frequencies with differing behavioral measures. We anticipate that the outcomes of this ongoing study will accelerate our understanding of infant brain development across the first year of life, delineating the emergence, function and maturation of changing oscillatory sleep patterns, while simultaneously facilitating future translational approaches (e.g. interventional strategies for slow wave and spindle enhancement) targeting developmental sleep as it relates to the prevention of neuropsychiatric disorders.
Advisors/Committee Members: Krekelberg, Bart (chair).
Subjects/Keywords: Sleep; Neurosciences
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APA ·
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Manager
APA (6th Edition):
Peters, S. E. (2017). Dense array EEG measures of infant sleep: microstructure and topography as biomarkers of cognitive development. (Doctoral Dissertation). Rutgers University. Retrieved from https://rucore.libraries.rutgers.edu/rutgers-lib/55284/
Chicago Manual of Style (16th Edition):
Peters, Suzanne E. “Dense array EEG measures of infant sleep: microstructure and topography as biomarkers of cognitive development.” 2017. Doctoral Dissertation, Rutgers University. Accessed March 04, 2021.
https://rucore.libraries.rutgers.edu/rutgers-lib/55284/.
MLA Handbook (7th Edition):
Peters, Suzanne E. “Dense array EEG measures of infant sleep: microstructure and topography as biomarkers of cognitive development.” 2017. Web. 04 Mar 2021.
Vancouver:
Peters SE. Dense array EEG measures of infant sleep: microstructure and topography as biomarkers of cognitive development. [Internet] [Doctoral dissertation]. Rutgers University; 2017. [cited 2021 Mar 04].
Available from: https://rucore.libraries.rutgers.edu/rutgers-lib/55284/.
Council of Science Editors:
Peters SE. Dense array EEG measures of infant sleep: microstructure and topography as biomarkers of cognitive development. [Doctoral Dissertation]. Rutgers University; 2017. Available from: https://rucore.libraries.rutgers.edu/rutgers-lib/55284/
Rutgers University
20.
Narasimhan, Sarulatha.
Sleep in the cardiothoracic intensive care unit.
Degree: Adult-Gerontology Acute Care Nurse Practitioner, 2020, Rutgers University
URL: https://rucore.libraries.rutgers.edu/rutgers-lib/65098/
Subjects/Keywords: Sleep
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Export
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Manager
APA (6th Edition):
Narasimhan, S. (2020). Sleep in the cardiothoracic intensive care unit. (Thesis). Rutgers University. Retrieved from https://rucore.libraries.rutgers.edu/rutgers-lib/65098/
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):
Narasimhan, Sarulatha. “Sleep in the cardiothoracic intensive care unit.” 2020. Thesis, Rutgers University. Accessed March 04, 2021.
https://rucore.libraries.rutgers.edu/rutgers-lib/65098/.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Narasimhan, Sarulatha. “Sleep in the cardiothoracic intensive care unit.” 2020. Web. 04 Mar 2021.
Vancouver:
Narasimhan S. Sleep in the cardiothoracic intensive care unit. [Internet] [Thesis]. Rutgers University; 2020. [cited 2021 Mar 04].
Available from: https://rucore.libraries.rutgers.edu/rutgers-lib/65098/.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Narasimhan S. Sleep in the cardiothoracic intensive care unit. [Thesis]. Rutgers University; 2020. Available from: https://rucore.libraries.rutgers.edu/rutgers-lib/65098/
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
NSYSU
21.
Tsai, Tung-yuan.
Automatic classification of Wake and Light Sleep using different combinations of EEG, EOG and EMG signals.
Degree: Master, Mechanical and Electro-Mechanical Engineering, 2010, NSYSU
URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0722110-180601
► Currently, sleep staging is accomplished is by clinical polysomnography (PSG). By extracting features from different combinations of electroencephalogram (EEG), electrooculogram (EOG) and electromyogram (EMG) signals,…
(more)
▼ Currently,
sleep staging is accomplished is by clinical polysomnography (PSG). By extracting features from different combinations of electroencephalogram (EEG), electrooculogram (EOG) and electromyogram (EMG) signals, this study uses neural network to perform
sleep staging.
A whole night and complete
sleep stage contains wake stage, rapid eye movement (REM) stage, stage 1, stage 2, and slow wave
sleep (SWS) stage. This project focuses on the classification of wake stage and light-
sleep (stage 1 and 2). These three stages are classified by a two-step process. At first, wake stage and light-
sleep are divided into two parts. Second, light
sleep is divided into stage 1 and stage 2. For a fixed number of channels, this work identifies the best combination of signal channels. In addition, by simultaneously considering the Neighboring epochs Rule classifier, this work also introduces an empirical rule to improve the classification accuracy.
Among the tested databases which contain two Medicine center and sixteen sets of different signal channels, the best results are obtained from the group of patients with the low average RDI value. They include the group that has a mean 15% SWS and the group that uses CPAP. As a whole, the combinative features of four channels are better results of classification. For our best results, the sensitivity and PPV of wake and stage 2 varies from 85%~88%, and those of stage 1 are respective 44.84% and 53.61%. And the total classification of
sleep staging is 84.59%. Apparently, the research has satisfactory results on
sleep staging.
Keywords:
Sleep Medicine,
Sleep stage, Neural Networks
Advisors/Committee Members: Jiann-Der Lee (chair), Chen-Wen Yen (committee member), Pei-Chung Chen (chair).
Subjects/Keywords: Neural Networks; Sleep stage; Sleep Medicine
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APA (6th Edition):
Tsai, T. (2010). Automatic classification of Wake and Light Sleep using different combinations of EEG, EOG and EMG signals. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0722110-180601
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):
Tsai, Tung-yuan. “Automatic classification of Wake and Light Sleep using different combinations of EEG, EOG and EMG signals.” 2010. Thesis, NSYSU. Accessed March 04, 2021.
http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0722110-180601.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Tsai, Tung-yuan. “Automatic classification of Wake and Light Sleep using different combinations of EEG, EOG and EMG signals.” 2010. Web. 04 Mar 2021.
Vancouver:
Tsai T. Automatic classification of Wake and Light Sleep using different combinations of EEG, EOG and EMG signals. [Internet] [Thesis]. NSYSU; 2010. [cited 2021 Mar 04].
Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0722110-180601.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Tsai T. Automatic classification of Wake and Light Sleep using different combinations of EEG, EOG and EMG signals. [Thesis]. NSYSU; 2010. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0722110-180601
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Universiteit Utrecht
22.
Houdt, C.A. van.
The effect of treatment of sleep disorders on symptom severity in children with ADHD: a selective review.
Degree: 2015, Universiteit Utrecht
URL: http://dspace.library.uu.nl:8080/handle/1874/303619
► Background: ADHD is a disorder with a high comorbidity rate and one of the frequent co-occuring disorders are sleep disorders. Sleep deprived children show a…
(more)
▼ Background: ADHD is a disorder with a high comorbidity rate and one of the frequent co-occuring disorders are
sleep disorders.
Sleep deprived children show a range of problem behaviors including inattentive and hyperactive behavior. Since these behaviors are very similar to core ADHD symptoms,
sleep problems might aggravate ADHD symptomatology or mimic ADHD symptoms, thus leading to misdiagnosis. This suggests that treating
sleep disorders in children with ADHD might reduce ADHD symptom severity.
Objective: to investigate whether treatment of
sleep disorders (
sleep-onset insomnia, restless legs syndrome or
sleep disordered breathing) in children with ADHD reduces ADHD symptom severity.
Methods: PubMed was searched using descriptions of
sleep disorders or specific
sleep disorders (i.e.
sleep disorder,
sleep disturbance,
sleep problems,
sleep-onset insomnia, restless legs syndrome,
sleep disordered breathing, obstructive
sleep apnea) and ADHD (i.e. attention-deficit/hyperactivity disorder, hyperactivity). Furthermore, references of found articles were checked for more relevant papers.
Results: there seems to be some evidence suggesting that the treatment of
sleep disorders in children with ADHD reduces ADHD symptom severity.
Conclusion: regarding all three
sleep disorders investigated, studies using longer baseline to follow-up designs seem to show more promising results. This suggests that ADHD symptoms do not suddenly appear after short periods of
sleep deprivation and suddenly disappear after short periods of normal
sleep, but that ADHD symptoms grow over a longer period of
sleep deprivation in children and therefore also disappear gradually over a longer period of normal
sleep, regardless of what is causing the
sleep deprivation. However, larger, double-blind placebo-controlled studies with a longer baseline to follow-up design should be carried out to generate more robust and unbiased findings. Designs for two such studies are proposed.
Advisors/Committee Members: Oranje, B., Zeeuw, P. de.
Subjects/Keywords: ADHD; sleep disorders; sleep problems; hyperactivity; inattention
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APA ·
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to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Houdt, C. A. v. (2015). The effect of treatment of sleep disorders on symptom severity in children with ADHD: a selective review. (Masters Thesis). Universiteit Utrecht. Retrieved from http://dspace.library.uu.nl:8080/handle/1874/303619
Chicago Manual of Style (16th Edition):
Houdt, C A van. “The effect of treatment of sleep disorders on symptom severity in children with ADHD: a selective review.” 2015. Masters Thesis, Universiteit Utrecht. Accessed March 04, 2021.
http://dspace.library.uu.nl:8080/handle/1874/303619.
MLA Handbook (7th Edition):
Houdt, C A van. “The effect of treatment of sleep disorders on symptom severity in children with ADHD: a selective review.” 2015. Web. 04 Mar 2021.
Vancouver:
Houdt CAv. The effect of treatment of sleep disorders on symptom severity in children with ADHD: a selective review. [Internet] [Masters thesis]. Universiteit Utrecht; 2015. [cited 2021 Mar 04].
Available from: http://dspace.library.uu.nl:8080/handle/1874/303619.
Council of Science Editors:
Houdt CAv. The effect of treatment of sleep disorders on symptom severity in children with ADHD: a selective review. [Masters Thesis]. Universiteit Utrecht; 2015. Available from: http://dspace.library.uu.nl:8080/handle/1874/303619
23.
木下, 円我.
歯科医師の睡眠状態と日中の活動 : Sleep and daytime activity of dentists.
Degree: 博士（歯学）, 2016, Osaka Dental University / 大阪歯科大学
URL: http://id.nii.ac.jp/1392/00000056/
歯科医師の睡眠不良は,自身の健康のみならず医療事故にもつながると考えられる.本研究では歯科医師の睡眠と日常生活を調査し,歯科医師自身の健康を維持し,かつ良好な歯科医療を施すための生活リズムを検討した.被験者は,大学臨床系教員4名,大学院生2名および開業医4名の10名の男性歯科医師とし,平均年齢は40.3歳であった.研究にはアクチグラフィを用いた.アクチグラフィは3次元の加速度計と照度計を内蔵した腕時計に似た小型の検査装置で,作動を測定して,睡眠・覚醒を高い精度で判定する.被験者の非利き腕にアクチグラフィを装着させて連続した7日間の活動量を記録した.そして,専用解析ソフトウェアを用いて総就床時間,総睡眠時間,中途覚醒時間,中途覚醒回数,平均覚醒時間,睡眠効率および日中活動量を求めた.また,被験者には入床時刻,食事時間,診療時間,離床時刻などの日中の活動を「睡眠および活動日誌」に記録させた.入床時刻は24時台と1時台が多く,日付が変わってから入床することが多い結果となった.離床時刻は7時台が最も多かった.入床時刻が常に24時を超えている被験者が5名あった.平均の総就床時間は6時間9分であったが,覚醒回数が19.8回あり,64分の中途覚醒時間があった.平均の睡眠時間は,5時間0分,睡眠効率は81.7%であった.前夜の中途覚醒時間が長くなると診療時の1分あたりの平均活動量は有意(p<0.01)に増加した.また,前夜の睡眠効率が大きくなると診療時の1分あたりの平均活動量は有意(p<0.01)に減少した.総就床時間,総睡眠時間および中途覚醒回数との関係は認められなかった.以上の結果より,歯科医師の睡眠状態は良好とはいえず,睡眠状態が診療に影響を与えることが示唆された.
2013
Subjects/Keywords: Dentist; Sleep; Activity; Dentist; Sleep; Activity
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APA (6th Edition):
木下, . (2016). 歯科医師の睡眠状態と日中の活動 : Sleep and daytime activity of dentists. (Thesis). Osaka Dental University / 大阪歯科大学. Retrieved from http://id.nii.ac.jp/1392/00000056/
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):
木下, 円我. “歯科医師の睡眠状態と日中の活動 : Sleep and daytime activity of dentists.” 2016. Thesis, Osaka Dental University / 大阪歯科大学. Accessed March 04, 2021.
http://id.nii.ac.jp/1392/00000056/.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
木下, 円我. “歯科医師の睡眠状態と日中の活動 : Sleep and daytime activity of dentists.” 2016. Web. 04 Mar 2021.
Vancouver:
木下 . 歯科医師の睡眠状態と日中の活動 : Sleep and daytime activity of dentists. [Internet] [Thesis]. Osaka Dental University / 大阪歯科大学; 2016. [cited 2021 Mar 04].
Available from: http://id.nii.ac.jp/1392/00000056/.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
木下 . 歯科医師の睡眠状態と日中の活動 : Sleep and daytime activity of dentists. [Thesis]. Osaka Dental University / 大阪歯科大学; 2016. Available from: http://id.nii.ac.jp/1392/00000056/
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Tasmania
24.
Colrain, Ian M(Ian Michael).
Ventilation during sleep onset.
Degree: 1988, University of Tasmania
URL: https://eprints.utas.edu.au/18925/1/whole_ColrainIanMichael1988_thesis.pdf
► Many aspects of human respiration are known to change from wakefulness to NREM sleep, including the level of ventilation, and the responsiveness to chemical respiratory…
(more)
▼ Many aspects of human respiration are known to change from wakefulness to
NREM sleep, including the level of ventilation, and the responsiveness to chemical
respiratory stimuli. The differences in ventilation between wakefulness and sleep are due
to a number of factors, one of which has been hypothesised to be the cessation of a
wakefulness drive to respiration. Such an hypothesis would link the stimulation of
respiration to the activity within the ascending reticular activating system, activity which
varies greatly during the period of sleep onset, and which is responsible for the changes
in activity seen at the cerebral cortex. The hypothesis allows the prediction that cessation
of the wakefulness drive would occur rapidly and with a consistent relationship to EEG
changes during the sleep onset period.
The present literature lacks an accurate description of the relationship between
changes in ventilation and alterations in cortical arousal as measured by the EEG. This
thesis reports three experiments designed to investigate ventilation during sleep onset and
to provide such a description, in both males and females. An assessment is also made of
the extent to which respiratory data collected over the sleep onset period is influenced by
the measurement devices used.
In the first study, sleep onsets were studied in five young male adults in a series of
single subject designs in which sleep onsets were replications. The results indicated that
during sleep onset, the commencement of continuous theta activity in the EEG was
associated with a substantial, rapid and highly predictable reduction in ventilation. The
change in ventilation was typically due to a reduction in tidal volume, and was in part
secondary to a reduction in metabolic rate. It was speculated that the non-metabolic
component may reflect the loss of a wakefulness drive to respiration, though other
interpretations were not eliminated. Sex differences exist in the incidence of sleep related respiratory dysfunction. In
addition, there is uncertainty as to whether females show sleep related decreases in the
responsiveness to chemical stimuli. This uncertainty has often been explained in terms of
different subjects being in different cycles of the menstrual cycle when investigated.
These data led to doubt as to whether females possess a wakefulness drive to respiration
and, if so, whether it is affected by progesterone levels.
The second experiment sought to investigate ventilation during sleep onset in normal
young females, during both phases of the menstrual cycle. Sleep onsets were studied in
five subjects in a series of single subject designs. The results obtained supported those
of the male subjects. That is, decreases in ventilation were associated with the onset of
theta activity in the EEG. Further, no menstrual phase differences existed in the
magnitude of the ventilation decrease or in its timing relative to EEG variations. Thus,
females demonstrated the same pattern of ventilation change as males, indicating that
…
Subjects/Keywords: Sleep; Sleep; Respiration
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APA (6th Edition):
Colrain, I. M. M. (1988). Ventilation during sleep onset. (Thesis). University of Tasmania. Retrieved from https://eprints.utas.edu.au/18925/1/whole_ColrainIanMichael1988_thesis.pdf
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):
Colrain, Ian M(Ian Michael). “Ventilation during sleep onset.” 1988. Thesis, University of Tasmania. Accessed March 04, 2021.
https://eprints.utas.edu.au/18925/1/whole_ColrainIanMichael1988_thesis.pdf.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Colrain, Ian M(Ian Michael). “Ventilation during sleep onset.” 1988. Web. 04 Mar 2021.
Vancouver:
Colrain IMM. Ventilation during sleep onset. [Internet] [Thesis]. University of Tasmania; 1988. [cited 2021 Mar 04].
Available from: https://eprints.utas.edu.au/18925/1/whole_ColrainIanMichael1988_thesis.pdf.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Colrain IMM. Ventilation during sleep onset. [Thesis]. University of Tasmania; 1988. Available from: https://eprints.utas.edu.au/18925/1/whole_ColrainIanMichael1988_thesis.pdf
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
McMaster University
25.
Owais, Sawayra.
THE IMPACT OF A POST-DELIVERY SLEEP PROTECTION INTERVENTION ON POSTPARTUM MATERNAL MENTAL HEALTH.
Degree: MSc, 2018, McMaster University
URL: http://hdl.handle.net/11375/23402
► INTRODUCTION: Poor sleep quality is a significant risk factor for the development of postpartum depression. This thesis examined the impact of a post-delivery intervention which…
(more)
▼ INTRODUCTION: Poor sleep quality is a significant risk factor for the development of postpartum depression. This thesis examined the impact of a post-delivery intervention which promoted and protected sleep during the immediate postpartum period on maternal mood, sleep quality, and anxiety.
METHODS: 41 women with lifetime or current mood and/or anxiety disorders (12 receiving the intervention) were enrolled in this prospective naturalistic cohort study from the third trimester of pregnancy until 24 weeks postpartum. Depression, the primary outcome, was measured using the Edinburgh Postnatal Depression Scale at 12 weeks postpartum. Remaining outcomes (sleep quality and anxiety) were measured using self-report questionnaires (Insomnia Severity Index and State-Trait Anxiety Inventory, respectfully), and objective measures (i.e., actigraphy for sleep quality).
RESULTS: There were no significant differences between the comparison and intervention group in depressive symptomatology at postpartum week 12 (primary outcome). On our secondary outcomes, we found that there were no significant differences in subjective and objective sleep quality at postpartum week two, or anxiety symptomatology at postpartum week eight between the two groups. There were also no significant differences in breastfeeding rates between the two groups at postpartum week 24.
CONCLUSION AND FUTURE DIRECTIONS: Floor effects, specialized perinatal psychiatric treatment for a specific population, and low statistical power offer explanations for the observed null results. Strengths of our study include diagnosis of mood/anxiety disorders using the gold-standard (i.e., clinician diagnosis), and use of objective sleep measures. Future studies may benefit from implementing this intervention in resource-poor settings, using adequately powered research designs.
Thesis
Master of Science (MSc)
While the arrival of a child is a celebrated and joyous occasion, it can also be a source of duress and anguish, particularly for the mother. Postpartum depression is a mood disorder experienced by 10-15% of mothers after childbirth. One of the strongest risk factors for the development of postpartum depression is disrupted postpartum sleep quality. This thesis examined the impact of an intervention designed to protect and promote sleep of mothers during the postpartum period in an effort to improve mood, sleep quality, and anxiety symptomatology. By improving maternal mental health, not only do women benefit, but their children, their partners, and the healthcare system.
Advisors/Committee Members: Frey, Benicio, Neuroscience.
Subjects/Keywords: postpartum; maternal; sleep quality; sleep intervention
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APA (6th Edition):
Owais, S. (2018). THE IMPACT OF A POST-DELIVERY SLEEP PROTECTION INTERVENTION ON POSTPARTUM MATERNAL MENTAL HEALTH. (Masters Thesis). McMaster University. Retrieved from http://hdl.handle.net/11375/23402
Chicago Manual of Style (16th Edition):
Owais, Sawayra. “THE IMPACT OF A POST-DELIVERY SLEEP PROTECTION INTERVENTION ON POSTPARTUM MATERNAL MENTAL HEALTH.” 2018. Masters Thesis, McMaster University. Accessed March 04, 2021.
http://hdl.handle.net/11375/23402.
MLA Handbook (7th Edition):
Owais, Sawayra. “THE IMPACT OF A POST-DELIVERY SLEEP PROTECTION INTERVENTION ON POSTPARTUM MATERNAL MENTAL HEALTH.” 2018. Web. 04 Mar 2021.
Vancouver:
Owais S. THE IMPACT OF A POST-DELIVERY SLEEP PROTECTION INTERVENTION ON POSTPARTUM MATERNAL MENTAL HEALTH. [Internet] [Masters thesis]. McMaster University; 2018. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/11375/23402.
Council of Science Editors:
Owais S. THE IMPACT OF A POST-DELIVERY SLEEP PROTECTION INTERVENTION ON POSTPARTUM MATERNAL MENTAL HEALTH. [Masters Thesis]. McMaster University; 2018. Available from: http://hdl.handle.net/11375/23402
Leiden University
26.
Weber, Nina.
De rol van slaapduur in de relatie tussen slaapproblemen en het gedrag van kinderen.
Degree: 2015, Leiden University
URL: http://hdl.handle.net/1887/34865
► Sleep problems in children are common and can affect their health. This study examined whether sleep duration mediates the association between sleep problems and behavioral…
(more)
▼ Sleep problems in children are common and can affect their health. This study examined whether
sleep duration mediates the association between
sleep problems and behavioral problems in children from nine to eleven years. The study consisted of a research among a group of 482 children, 220 boys and 260 girls (two unknown). The mean age of the children was 10.5 years (SD = 0.83). Their parents were asked to fill out the
Sleep Disturbance Scale for Children (SDSC) and the Strengths and Difficulties Questionnaire (SDQ), which were used to measure
sleep disturbances and internalizing and externalizing behavioral problems of the children respectively. In addition, parents kept an online
sleep diary for a week to collect information about the
sleep duration of the child. Regression analyses showed a significant association between
sleep problems and both internalizing (β = .24) and externalizing behavioral problems (β = .26), as well as a significant negative association between
sleep problems and
sleep duration (β = -.21).
Sleep duration and - both internalizing and externalizing - behavioral problems were not significantly related. The results therefore suggest that
sleep duration did not mediate the association between
sleep problems and behavioral problems. The overall findings highlight the importance that parents should be aware of
sleep problems underlying the behavioral problems of their child. Besides,
sleep problems may serve as a warning for a higher risk of developing behavior problems. The findings of this study may be useful in interventions to treat, control or prevent
sleep and behavioral problems. It should however be noted that other factors could influence the association between
sleep problems and behavioral problems and more research is needed to further explore this association.
Advisors/Committee Members: Vermeulen, M.C.M (advisor), Heijden, K. B. van der (advisor).
Subjects/Keywords: sleep problems; sleep duration; behavioral problems
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APA (6th Edition):
Weber, N. (2015). De rol van slaapduur in de relatie tussen slaapproblemen en het gedrag van kinderen. (Masters Thesis). Leiden University. Retrieved from http://hdl.handle.net/1887/34865
Chicago Manual of Style (16th Edition):
Weber, Nina. “De rol van slaapduur in de relatie tussen slaapproblemen en het gedrag van kinderen.” 2015. Masters Thesis, Leiden University. Accessed March 04, 2021.
http://hdl.handle.net/1887/34865.
MLA Handbook (7th Edition):
Weber, Nina. “De rol van slaapduur in de relatie tussen slaapproblemen en het gedrag van kinderen.” 2015. Web. 04 Mar 2021.
Vancouver:
Weber N. De rol van slaapduur in de relatie tussen slaapproblemen en het gedrag van kinderen. [Internet] [Masters thesis]. Leiden University; 2015. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/1887/34865.
Council of Science Editors:
Weber N. De rol van slaapduur in de relatie tussen slaapproblemen en het gedrag van kinderen. [Masters Thesis]. Leiden University; 2015. Available from: http://hdl.handle.net/1887/34865
Leiden University
27.
Diemers, I.M.
Temperamental profiles predicting sleep quality and quantity in 9- to 11-year-old children.
Degree: 2012, Leiden University
URL: http://hdl.handle.net/1887/20168
► Sleeping difficulties have a negative influence on cognitive functioning and behavioral problems, in both children and adults (Alhola & Polo-Kantola, 2007; Astill et al., 2012).…
(more)
▼ Sleeping difficulties have a negative influence on cognitive functioning and behavioral problems, in both children and adults (Alhola & Polo-Kantola, 2007; Astill et al., 2012). Studies have revealed that temperament might be a predictor of
sleep disturbances in children. The aim of the current study was to examine the association between different temperament traits and
sleep disturbances,
sleep onset latency,
sleep duration and subjective
sleep quality in children. Participants were 113 children, aged 9 – 11 years (M = 10.47 years; SD = .72). Parents kept track of a
sleep diary and both parents and children completed several questionnaires, regarding
sleep and temperament. Significant associations were found between the different
sleep disturbances and effortful control, high intensity pleasure/surgency, frustration, affiliation, and fear.
Sleep duration was related to affiliation and fear. Subjective
sleep quality was associated with affiliation and shyness. The current study provides evidence for the association between and
sleep and temperament.
Advisors/Committee Members: Heijden, K.B. van der (advisor).
Subjects/Keywords: Sleep; Sleep disturbances; Temperament; school-aged children
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APA ·
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APA (6th Edition):
Diemers, I. M. (2012). Temperamental profiles predicting sleep quality and quantity in 9- to 11-year-old children. (Masters Thesis). Leiden University. Retrieved from http://hdl.handle.net/1887/20168
Chicago Manual of Style (16th Edition):
Diemers, I M. “Temperamental profiles predicting sleep quality and quantity in 9- to 11-year-old children.” 2012. Masters Thesis, Leiden University. Accessed March 04, 2021.
http://hdl.handle.net/1887/20168.
MLA Handbook (7th Edition):
Diemers, I M. “Temperamental profiles predicting sleep quality and quantity in 9- to 11-year-old children.” 2012. Web. 04 Mar 2021.
Vancouver:
Diemers IM. Temperamental profiles predicting sleep quality and quantity in 9- to 11-year-old children. [Internet] [Masters thesis]. Leiden University; 2012. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/1887/20168.
Council of Science Editors:
Diemers IM. Temperamental profiles predicting sleep quality and quantity in 9- to 11-year-old children. [Masters Thesis]. Leiden University; 2012. Available from: http://hdl.handle.net/1887/20168
University of Toronto
28.
Lim, Joonbum.
Sleep-wake Behaviour in Rats: The Link between Ultradian Rhythms and Sleep Homeostasis.
Degree: 2013, University of Toronto
URL: http://hdl.handle.net/1807/43084
► The underlying mechanism for the origin of ultradian rhythms is not clearly understood at present. Based on a recent study from our laboratory, we have…
(more)
▼ The underlying mechanism for the origin of ultradian rhythms is not clearly understood at present. Based on a recent study from our laboratory, we have conceptualized a model for the origin of quasiperiodic ultradian rhythms in sleep-wake state. This model hypothesizes that the ultradian rhythms of sleep-wake state may be generated by a mechanism that includes the sleep-wake homeostat. The main purpose of the present study was to test the hypothesis that sleep homeostasis and sleep-wake ultradian rhythms share a common underlying mechanism. The present study has refuted that hypothesis. I conclude that: (1) the proposed model for the generation of quasiperiodic ultradian rhythms in sleep-wake state in mammals is overly simplistic in its present form, (2) the generation of ultradian rhythms in sleep-wake state probably arise from a more complex systemic interactions between the sleep-wake oscillatory network and other internal/external inputs, rather than the simple expression of sleep homeostat.
MAST
Advisors/Committee Members: Stephenson, Richard, Cell and Systems Biology.
Subjects/Keywords: Ultradian Rhythms; Sleep; Rats; Sleep Homeostasis; 0433
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APA (6th Edition):
Lim, J. (2013). Sleep-wake Behaviour in Rats: The Link between Ultradian Rhythms and Sleep Homeostasis. (Masters Thesis). University of Toronto. Retrieved from http://hdl.handle.net/1807/43084
Chicago Manual of Style (16th Edition):
Lim, Joonbum. “Sleep-wake Behaviour in Rats: The Link between Ultradian Rhythms and Sleep Homeostasis.” 2013. Masters Thesis, University of Toronto. Accessed March 04, 2021.
http://hdl.handle.net/1807/43084.
MLA Handbook (7th Edition):
Lim, Joonbum. “Sleep-wake Behaviour in Rats: The Link between Ultradian Rhythms and Sleep Homeostasis.” 2013. Web. 04 Mar 2021.
Vancouver:
Lim J. Sleep-wake Behaviour in Rats: The Link between Ultradian Rhythms and Sleep Homeostasis. [Internet] [Masters thesis]. University of Toronto; 2013. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/1807/43084.
Council of Science Editors:
Lim J. Sleep-wake Behaviour in Rats: The Link between Ultradian Rhythms and Sleep Homeostasis. [Masters Thesis]. University of Toronto; 2013. Available from: http://hdl.handle.net/1807/43084
University of Otago
29.
O'Keeffe, Karyn Maree.
Interaction between cardiac and ventilatory timing during sleep
.
Degree: 2012, University of Otago
URL: http://hdl.handle.net/10523/2429
► Cardioventilatory coupling is the temporal alignment between inspiratory onset and preceding heart beat, and is a determinant of ventilatory timing. Although investigated in anaesthetised and…
(more)
▼ Cardioventilatory coupling is the temporal alignment between inspiratory onset and preceding heart beat, and is a determinant of ventilatory timing. Although investigated in anaesthetised and resting individuals, as well as animals, few studies have examined cardioventilatory coupling during
sleep. This thesis aimed to further work in this area by investigating the cardioventilatory coupling during
sleep.
In the first study, 30 healthy individuals (14 male; 16 female) aged 18-35 years and nine healthy individuals (4 male; 5 female) aged 60-75 years underwent a level II polysomnographic study in their own home. Cardioventilatory coupling was observed to some degree in all healthy individuals. In young adults, strength of coupling (χ2(3) = 12.71, p = 0.005) and the proportion of the night spent coupling (χ2(3) = 9.80, p = 0.02) differed significantly between wakefulness, light
sleep, slow wave
sleep (SWS) and REM
sleep. Post hoc analyses indicated that coupling strength and the proportion of the night spent coupling during light
sleep and slow wave
sleep, was significantly different to that during wakefulness. Decreased strength of cardioventilatory coupling was observed with increasing time post
sleep onset (Spearman, r = 0.20, p = 0.003). Cardioventilatory coupling did not differ between the young and older age groups, or with gender.
In the second study, 14 (6 male; 8 female) of these individuals aged 18-35 years underwent an additional home-based polysomnographic study, 14 days after the first study. In these individuals, both strength of cardioventilatory coupling (ICC = 0.671, p = 0.003), and proportion of the night spent coupling (ICC = 0.770, p < 0.001), were moderately repeatable from Night 1 to Night 2.
In the third study, cardioventilatory coupling was examined in 151 individuals with
sleep-disordered breathing (SDB). Cardioventilatory coupling was observed to some degree in all but one individual with SDB. Decreased strength of coupling (Spearman, r = -0.33, p < 0.001) and decreased proportion of the night spent coupling (Spearman, r = -0.39, p < 0.001) was observed with increasing apnoea hypopnoea index. As with healthy individuals, both the strength of coupling (χ2(3) = 12.95, p = 0.005) and the proportion of the night spent coupling (χ2(3) = 19.37, p < 0.001) differed significantly between wakefulness, light
sleep, SWS and REM
sleep, in individuals with SDB. Coupling strength was increased during light
sleep, compared to wakefulness and REM
sleep.
It is concluded that cardioventilatory coupling is a phenomenon observed in most individuals during
sleep, but a large degree of inter-individual variability is exhibited in strength of coupling and the proportion of the night spent coupling. In healthy individuals, coupling is observed as a moderately repeatable phenomenon from night-to-night. Increasing severity of SDB is associated with decreased cardioventilatory coupling, which may be reflective of changes in autonomic activity observed with SDB. Together, these findings have identified…
Advisors/Committee Members: Galletly, Duncan (advisor).
Subjects/Keywords: cardioventilatory coupling;
sleep;
sleep-disordered breathing
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APA ·
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Manager
APA (6th Edition):
O'Keeffe, K. M. (2012). Interaction between cardiac and ventilatory timing during sleep
. (Doctoral Dissertation). University of Otago. Retrieved from http://hdl.handle.net/10523/2429
Chicago Manual of Style (16th Edition):
O'Keeffe, Karyn Maree. “Interaction between cardiac and ventilatory timing during sleep
.” 2012. Doctoral Dissertation, University of Otago. Accessed March 04, 2021.
http://hdl.handle.net/10523/2429.
MLA Handbook (7th Edition):
O'Keeffe, Karyn Maree. “Interaction between cardiac and ventilatory timing during sleep
.” 2012. Web. 04 Mar 2021.
Vancouver:
O'Keeffe KM. Interaction between cardiac and ventilatory timing during sleep
. [Internet] [Doctoral dissertation]. University of Otago; 2012. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/10523/2429.
Council of Science Editors:
O'Keeffe KM. Interaction between cardiac and ventilatory timing during sleep
. [Doctoral Dissertation]. University of Otago; 2012. Available from: http://hdl.handle.net/10523/2429
University of Adelaide
30.
Vakulin, Andrew.
The effects of sleep restriction and alcohol on simulated driving and cortical function in obstructive sleep apnoea.
Degree: 2011, University of Adelaide
URL: http://hdl.handle.net/2440/68949
► Obstructive sleep apnoea (OSA) is a common sleep disorder associated with neurobehavioural daytime abnormalities including poor driving simulator performance and an increased risk of motor-vehicle…
(more)
▼ Obstructive
sleep apnoea (OSA) is a common
sleep disorder associated with neurobehavioural daytime abnormalities including poor driving simulator performance and an increased risk of motor-vehicle accidents. Treating OSA with continuous positive airway pressure (CPAP) significantly improves many of the daytime consequences of OSA. Until recently it was believed that CPAP treatment can completely resolve excessive daytime sleepiness and neurobehavioural abnormalities associated with OSA. However, recent evidence suggests that compared to results in well-matched healthy subjects, levels of daytime vigilance and cortical activation and some domains of cognitive function in OSA patients may not return to normal, even after effective OSA treatment with good treatment compliance.
Sleep restriction and low-dose alcohol consumption are common “life style” factors that have a negative impact on the central nervous system and driving performance in healthy subjects. However, their impact on driving simulator performance and cortical information processing in patients with OSA has not been examined.
The hypotheses tested in the work presented in this thesis were that:
a)
Sleep restriction and alcohol have a greater deleterious effect on driving simulator performance and cortical information processing in untreated OSA patients than in healthy subjects.
b) Treatment of severe OSA with CPAP improves, but does not normalise driving simulator performance and cortical information processing.
Consequently, the broad aims were:
a) To compare the effects of
sleep restriction and alcohol on driving simulator performance and auditory cortical event-related potentials in OSA patients and healthy age and gender-matched controls.
b) To compare driving simulator performance and auditory cortical eventrelated potentials in severe OSA patients before and after 3-months of CPAP therapy and to compare these results with those of healthy, untreated subjects also studied 3-months apart.
Study 1 (CHAPTER 2) compared performance during a 90-minute simulated drive in 38 patients with OSA and 20 healthy age and gender-matched control subjects under 3 conditions studied in random order: 1) normal
sleep, 2)
sleep restriction (4 hours in bed on the night prior to study) and 3) low-dose alcohol (blood alcohol concentration 0.05 g/dL). Compared to control subjects, OSA patients exhibited a higher crash rate, increased overall steering deviation and more steering deterioration with time-on-task. Following
sleep restriction and alcohol there was a ~40% greater increase in steering deviation in OSA patients than in control subjects. Crashes were more likely to occur in patients with OSA compared with control subjects. OSA patients were more likely to crash under
sleep restriction and alcohol conditions compared to the normal
sleep condition. Simulator crashes were associated with behavioural and physiological evidence of increased sleepiness. The results of this study showed that compared with healthy subjects, OSA patients have worse driving simulator…
Advisors/Committee Members: McEvoy, Doug (advisor), Catcheside, Peter G. (advisor), School of Medical Sciences (school).
Subjects/Keywords: sleep restriction; alcohol; driving; obstructive sleep apnoea
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APA (6th Edition):
Vakulin, A. (2011). The effects of sleep restriction and alcohol on simulated driving and cortical function in obstructive sleep apnoea. (Thesis). University of Adelaide. Retrieved from http://hdl.handle.net/2440/68949
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):
Vakulin, Andrew. “The effects of sleep restriction and alcohol on simulated driving and cortical function in obstructive sleep apnoea.” 2011. Thesis, University of Adelaide. Accessed March 04, 2021.
http://hdl.handle.net/2440/68949.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Vakulin, Andrew. “The effects of sleep restriction and alcohol on simulated driving and cortical function in obstructive sleep apnoea.” 2011. Web. 04 Mar 2021.
Vancouver:
Vakulin A. The effects of sleep restriction and alcohol on simulated driving and cortical function in obstructive sleep apnoea. [Internet] [Thesis]. University of Adelaide; 2011. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/2440/68949.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Vakulin A. The effects of sleep restriction and alcohol on simulated driving and cortical function in obstructive sleep apnoea. [Thesis]. University of Adelaide; 2011. Available from: http://hdl.handle.net/2440/68949
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
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