Active clinical trials for "Sleep Deprivation"

The purpose of this study is to compare a 2-lead frontal electroencephalogram recording to a formal polysomnography (PSG) in detecting sleep vs. wake and depth of sleep in both healthy and ICU patients.

The purpose of this study is to evaluate the measures of brain function, both neurophysiological (event-related potentials (ERPs) and functional (cognitive assessments), in response to sleep deprivation.

This study aims to examine the effectiveness of ammonia inhalants in countering the effects of total sleep deprivation on cognitive and physical performance tests relevant to military personnel.

Electroencephalogram (EEG) has an important place in establishing the correct diagnosis, providing appropriate intervention, and predicting the prognosis in the long term in children. When the literature is examined, it is seen that different sedative drugs (benzodiazepines, barbiturates, phenothiazine, chloral hydrate, hydroxyzine, melatonin, etc.) and their combinations are used to provide sedation during EEG recordings, but there is no ideal sedative drug. Nurses working in the field of pediatric neurology in EEG recordings; It has important roles in preparing the child and parent for the procedure, applying sedation before the procedure, performing the EEG recording properly, monitoring vital signs during the procedure, monitoring the effects of the sedative substance after the procedure, and sending the patient home safely. Pediatric nurses fulfill these roles by adopting a multidisciplinary team approach. In this context, the aim of our research is; The aim of this study is to evaluate the effects of chloral hydrate, hydroxyzine and melatonin, which are used as sedative agents before EEG recording in children, on sleep success, time to fall asleep, side effects and EEG background.

This project proposes to both develop and test adaptive automation countermeasures for the effects of stressors such as sleep deprivation (SD) on human performance related to robotic tasks, and investigate the relationship between human trust and appropriate use of these countermeasures.

From 40 to 60% of patients with depression experience a rapid and significant improvement of mood with one night of sleep deprivation (SD). The neural mechanisms underlying this effect have not been elucidated. Recent advances in functional neuroimaging have provided new opportunities to investigate state changes in regional brain function, along with a better understanding of the neural networks affected by depression and SD. Here we propose to study a group of N=48 antidepressant-free male and female patients with current depression symptom and N=12 healthy controls with no history of mood disorders before and after SD to provide mechanistic insight into the neural substrates underlying the antidepressant effects of SD. We hypothesize that SD-induced concurrent functional activity and connectivity changes in multiple brain networks related to different depressive symptom dimensions including emotion regulation, attention, arousal, self-referential, and reward processing will underlie the rapid and transient antidepressant effects of SD. Using an ABA design, multimodal brain imaging along with more traditional electroencephalographic (EEG) and neurobehavioral testing data will be acquired at baseline after normal sleep, during one night of total SD, and after one night of recovery sleep using a 5-day in laboratory protocol during which subjects will be continuously monitored by trained staff.

Currently, residents commonly experience dehydration and poor nutrition during nighttime duty hours as a result of heavy work load, lack of time to take nutrition and hydration breaks, or limited or no access to healthy food and drinks which may affect residents' work performance. The goal of this study is to compare the effects of two different meal compositions with no typical dietary practices (existing conditions) on work performance of the on-call residents during night shifts.

This within-subject experiment uses one night of acute sleep restriction (4h) vs normal sleep (8h) to study state-dependent changes in olfactory processing. Odor-evoked blood oxygen level dependent (BOLD) responses will be measured in olfactory brain regions using functional magnetic resonance imaging (fMRI). Food intake will be measured at a buffet.

A sleep deprivation protocol combined with state-of-the-art, simultaneous positron emission tomography and magnetic resonance spectroscopy imaging will be employed to investigate the effects of sleep deprivation and aging on hypothesized molecular markers of sleep need.

People living with HIV (PLWH) often have poor sleep, which may put them at a higher risk for many chronic diseases, including cardiovascular disease. One of the mechanisms by which this may occur is via chronic inflammation and endothelial dysfunction. Adenosine plays an important role in sleep homeostasis, with levels increasing in the CSF in response to sleep deprivation and falling with sleep. Peripherally, adenosine, via its signaling pathway, plays an important role in immunoregulation by suppressing the inflammatory response. PLWH, even on antiretroviral therapy, have suppressed peripheral adenosine levels which are predictive of adverse cardiovascular outcomes. The hypothesis underlying this study is that acute sleep deprivation in PLWH does not result in a compensatory increase in extracellular adenosine and its signaling peripherally, and this failure to appropriately compensate, leads to an increase in systemic inflammation and endothelial dysfunction.