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Articles 1 - 6 of 6
Full-Text Articles in Other Neuroscience and Neurobiology
Sex Differences In Endothelial Function, Metabolism, And Sleep: Responses To Disrupted Circadian Rhythms, Olga Hecmarie Meléndez-Fernández
Sex Differences In Endothelial Function, Metabolism, And Sleep: Responses To Disrupted Circadian Rhythms, Olga Hecmarie Meléndez-Fernández
Graduate Theses, Dissertations, and Problem Reports (ETD)
Circadian rhythms are endogenous cycles that recur approximately every 24 h, and manifest in virtually every physiological and behavioral process among the vast majority of organisms. These rhythms, sustained by the central circadian clock, the suprachiasmatic nucleus (SCN) of the hypothalamus, allow for optimal timing of biological processes that ensure organisms’ homeostasis, and are entrained to precisely 24 h by daily exposure to light. Disruption of the molecular mechanisms that drive these rhythms have negative consequences on physiology and behavior that may impair survival. The molecular mechanisms that underlie these effects are widely studied and linked to multiple diseases and …
Sleep And Stress In The Acute Phase Of Concussion In Youth, Arthur C. Maerlender, Caitlin Masterson, Jessica L. Calvi, Todd Caze, Ross Mathiasen, Dennis Molfese
Sleep And Stress In The Acute Phase Of Concussion In Youth, Arthur C. Maerlender, Caitlin Masterson, Jessica L. Calvi, Todd Caze, Ross Mathiasen, Dennis Molfese
Center for Brain, Biology, and Behavior: Faculty Publications
This study sought to address the complex interplay between both biological and psychological perceptions of stress and sleep in the acute stages following a mild traumatic brain injury. A secondary goal was to identify potential targets for intervention. Eleven acutely injured youth (mean age 12 years) were studied at home with overnight actigraphy, salivary cortisol and melatonin assays, and subjective ratings of stress and fatigue (injured group). Nine matched control youth also were assessed (control group). Results suggested longer sleep latencies (time to fall asleep) and higher levels of fatigue in the injured group exist (p ¼ 0.025 and p …
Is Concussion-Related Sleep Disturbance Present After Return To Play In College Athletes?, Alexander Gallaer
Is Concussion-Related Sleep Disturbance Present After Return To Play In College Athletes?, Alexander Gallaer
Honors Scholar Theses
As one of the most commonly experienced symptoms, the ramifications of sleep disruption as a result of concussion are potentially great, yet widely unexplored. Particularly troublesome is murky data regarding the length of sleep disruption following a concussion. By analyzing self-reported sleep data via the Pittsburgh Sleep Quality Index, this study seeks to investigate potential differences in sleep quality between injured college athletes 40 days after they have been cleared to play and matched controls. Data was analyzed using ANOVA analysis as well as Pearson correlation. No significant differences were found in sleep quality between groups, nor was there a …
Examining The Neuronal Dopaminergic Pathway Underlying Sleep Behavior And Related Dopamine Sleep Disorders, Mary Beth Putz
Examining The Neuronal Dopaminergic Pathway Underlying Sleep Behavior And Related Dopamine Sleep Disorders, Mary Beth Putz
Undergraduate Honors Theses
The human brain is an extremely complex organ with approximately 100 billion different neurons that are constantly sending and receiving messages. These messages are sent using the chemical messengers of the brain: neurotransmitters and neuromodulators. Mechanisms of neural control of sleep are substantially conserved across species. Evidence from multiple animal models including flies, zebrafish, and mice shows that the arousal, or wake phase, is regulated by conserved neuromodulators such as dopamine, norepinephrine, and serotonin. Since these neurotransmitter systems are distributed throughout the brain and sub-serve many functions in addition to sleep, the precise circuit mechanisms by which these neurotransmitters regulate …
Effects Of Resting State On Perceptual Learning, Sarah Eagleman Ph.D.
Effects Of Resting State On Perceptual Learning, Sarah Eagleman Ph.D.
Dissertations and Theses (Open Access)
Psychophysical experiments in humans have demonstrated that improvements in perceptual learning tasks occur following daytime rests. The neural correlates of how rest influences subsequent sensory processing during these tasks remain unclear. One possible neural mechanism that may underlie this behavioral improvement is reactivation. Previously evoked network activity reoccurs – reactivates - in the absence of further stimulation. Reactivation was initially discovered in the hippocampus but has now been found in several brain areas including cortex. This phenomenon has been implicated as a general mechanism by which neural networks learn and store sensory information. However, whether reactivation occurs in areas relevant …
A One-Hour Sleep Restriction Impacts Brain Processing In Young Children Across Tasks: Evidence From Event-Related Potentials, Dennis Molfese, Anna Ivanenko, Alexandra P.F. Key, Adrienne Roman, Victoria J. Molfese, Louise M. O'Brien, David Gozal, Srinivas Kota, Caitlin M. Hudac
A One-Hour Sleep Restriction Impacts Brain Processing In Young Children Across Tasks: Evidence From Event-Related Potentials, Dennis Molfese, Anna Ivanenko, Alexandra P.F. Key, Adrienne Roman, Victoria J. Molfese, Louise M. O'Brien, David Gozal, Srinivas Kota, Caitlin M. Hudac
Center for Brain, Biology, and Behavior: Faculty Publications
The effect of mild sleep restriction on cognitive functioning in young children is unclear, yet sleep loss may impact children's abilities to attend to tasks with high processing demands. In a preliminary investigation, six children (6.6 - 8.3 years of age) with normal sleep patterns performed three tasks: attention (“Oddball”), speech perception (conconant-vowel syllables) and executive function (Directional Stroop). Event-related potentials (ERP) responses were recorded before (Control) and following one-week of 1-hour per day of sleep restriction. Brain activity across all tasks following Sleep Restriction differed from activity during Control Sleep, indicating that minor sleep restriction impacts children's neurocognitive functioning.