Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 18 of 18 for “"Sleep Architecture"”.
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An Investigation of Sleep Architecture and Consequent Cognitive Changes in Olanzapine Treated Patients with Depression
… the effect of olanzapine augmentation therapy on sleep architecture, specifically slow wave sleep (SWS), in the treatment of depression. Secondarily, to determine the effect of olanzapine augmentation therapy on illness severity and cognitive function. Finally, to examine the correlation between …
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Associations between sleep architecture, cortisol concentrations, cognitive performance, and quality of life in patients with Addison's disease
… that there are mechanistic relations between sleep disruption and cognitive (particularly memory) deficits, and that varying concentrations of the hormone cortisol may play a particularly important role in mediating those relations. Because patients with Addison’s disease (AD) experience …
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Sleep Characteristics in Breastfeeding and Formula-Feeding Mothers
Sleep loss is a common concern frequently expressed by new mothers. This study's purpose was to investigate the difference between sleep architecture, descriptions and self-perception of sleep in breastfeeding and formula-feeding mothers, 4-6 weeks post-partum (N=44). Measurement tools were …
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Subjective, behavioural and electrophysiological measurements of the time-course and intensity of sleep inertia after a full night of sleep /
… of impaired alertness and performance known as sleep inertia that occurs upon awakening from a full night of sleep. They report that sleep inertia dissipates in a saturating exponential manner, the exact time course being task dependent, but generally persisting for one to two hours. A number of …
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Do dreams protect sleep? Testing the Freudian hypothesis of the function of dreams
… the Freudian hypothesis that dreams protect sleep. In order to do this, sleep architecture in patients who had experienced dream loss as a result of thrombotic stroke in the region of the posterior cerebral arteries was compared with that of patients with the same pathology who had not …
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Cognitive, Clinical, and Biomarker Correlates of Insight in Obsessive–Compulsive Disorder: preliminary results of a cross-sectional study
… among insight, cognitive performance, sleep architecture, and peripheral biomarkers in OCD, integrating dimensional and machine-learning approaches. A multimodal dataset including psychometric scales (Y-BOCS, BABS), MATRICS-defined cognitive tests, polysomnography, and serum biomarkers …
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Genetic Circadian Mosaics and the Clock Network’s Contributions to Sleep
… of specific circadian clock neurons to sleep in a standard light-dark (LD) environment, break-down the sleep architecture for day (siesta) and nighttime sleep. Previous research using this design has focused on the anticipatory activity mentioned earlier, my study will use this phenotype …
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Predictors Of Interindividual Differences In Vulnerability To Neurobehavioral Consequences Of Chronic Partial Sleep Restriction
… differences in neurobehavioral response to sleep loss are ubiquitous and unexplained. Numerous factors have been examined as potential predictors of phenotypic response to sleep loss but none have yielded a comprehensive view of the phenomenon. This dissertation examines the impact of …
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NREM sleep spindles and slow wave sleep in younger and elderly women: an investigation of their influence on declarative memory consolidation
Previous research shows that slow wave sleep (SWS) and sleep spindles play an essential role in declarative memory consolidation. However, this role is not well understood in the ageing women. With advancing age, SWS and sleep spindles undergo significant decreases in duration and density, while …
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Gibt es einen First Night Effect bei ambulanter Polysomnographie? : Eine Untersuchung an fünfundzwanzig schlafgesunden Probanden
… is the gold standard in diagnosis of sleep disorders. Ambulatory polysomnography might be an interesting alternative to this, not only because it can be done in the subjects’ usual surroundings, but also because it offers a cost-reducing potential. It has become routine to do at least …
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Learning new words: effects of meaning, memory consolidation, and sleep
… The third question focused on the role of sleep in the consolidation of novel words: which aspects of sleep architecture are associated with lexical integration? Experiment 8 looked at sleep during the night after word learning and sought to clarify the roles sleep spindles and different …
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Time-Restricted Feeding Extends Longevity in Drosophila Melanogaster
… which is a useful model for longevity, sleep and circadian studies because of its wellestablished sleep behavior, tractable genetics, and short lifespan. We found that TRF extends longevity of fruit flies only in mated females, while showing no effect on mated males or virgin females. We …
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NOVEL THERAPEUTIC APPROACHES EMERGING FROM HCN CHANNELS STRUCTURAL AND FUNCTIONAL STUDIES
… amplified following lamotrigine administration. Sleep architecture is also disrupted in these animals, suggesting that HCN1 dysfunction impacts broader aspects of brain function beyond seizure susceptibility. Together, these findings provide a comprehensive understanding of the functional impact …
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Into the night : evaluating sleep as a measure of animal welfare
… measure of animal welfare. In humans, sleep quality correlates strongly with a person’s wellbeing; this suggests that sleep may also prove to be a suitable tool to measure mammals’ welfare. Studies in humans have shown that lack of sleep compromises the health of individuals, causing …
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PHYSIOLOGICAL CONSEQUENCES OF CIRCADIAN DISRUPTION BY NIGHTTIME LIGHT EXPOSURE
… light exposure independent of changes in sleep architecture. However, the secretion patterns of many hormones and immune parameters are different in nocturnal and diurnal species. In the final set of experiments, I demonstrated that diurnal Nile Grass rats (Arvicanthus Niloticus) exposed …
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The functional neurophysiological sequelae associated with high frequency dream recallers
… 'arousal-retrieval' model positing that intra-sleep wakefulness is required for dream traces to be encoded into long-term storage, essentially proposing increased DRF as a product of a better memory for dreams. Results from recent studies support this model by demonstrating longer periods of …
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Neural Dynamics of Mental Imagery, Visual Perception, and Rapid Eye Movement Sleep
… the functional role of rapid eye movement (REM) sleep, we sought to gain a deeper understanding of the differences between neural activity during REM sleep and during the awake state. We set out to investigate the temporal directionality of communication and coupling in neural activity between …
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The evolution of shelter: ecology and ethology of chimpanzee nest building
… chimpanzee nests, nesting trees, nest shape, and architecture in two savanna-dwelling populations on opposite sides of Africa: Fongoli, Senegal, and Issa, Tanzania. Savanna habitats are the most extreme habitats in which chimpanzees survive today, and may represent a similar environment to that in …