Active clinical trials for "Sleep Deprivation"

Particulate matter exposure during smoke inhalation provokes inflammatory immune responses in people exposed to burning biomass including fire fighters and civilians. Persistent occupational exposure to particulate matter represents a unique hazard for firefighters, underpinning a burgeoning research area. This trial will evaluate the effects of sleep deprivation and circadian rhythm disruption on the inflammatory response to woodsmoke associated particulate matter exposure. Participants will undergo 2 experimental trials in a randomized cross-over design. Participants will have either an 8-hour sleep opportunity or a 4-hour sleep opportunity prior to reporting to lab for a 45 minute simulated firefighting trial (wood smoke associated particulate matter filtered to 2.5 um at a concentration of 250 ug/m^3, while exercising at a moderate intensity). The effects of sleep restriction and simulated firefighting will be measured.

One of the most common problems in patients in the postoperative period is pain and the associated deterioration in sleep quality. Deterioration in sleep quality can cause pain to be perceived more severely. It is recommended to use non-pharmacological approaches as well as pharmacological interventions in the management of these problems. This study was planned to determine the effect of hot foot bath and lavender essential oil foot bath application on postoperative sleep quality and pain in patients undergoing abdominal surgery.

The effects of sleep deprivation (SD) on performance, while contradictory at first glance, are in reality rather clear when exercise duration is considered, i.e. intense/supramaximal versus prolonged exercises. This latter type of exercise leads to the most important performance decrements after SD.

The purpose of this study was to characterize how the anti-cholinesterase inhibitor (AChE-I) donepezil modulates brain regions involved in visual short-term memory, episodic memory and inhibitory efficiency following 24 hours of total sleep deprivation using fMRI as an additional marker for drug effect.

The project is aimed at identifying how the adrenergic antagonist 'carvedilol' modulates the effects of sleep deprivation in healthy volunteers. The study is a double-blind, randomized, placebo-controlled, cross-over study. Investigators will include 20 healthy volunteers who will undergo three functional magnetic resonance (fMRI) imaging sessions, one at baseline, and two after sleep deprivation (one night without sleep). The two sleep-deprivation scans are performed in a randomized order where subjects receive placebo or carvedilol, in a within-subject, cross-over study design. The following domains will be described: 1) fMRI imaging of cerebrospinal fluid (CSF) pulsations (glymphatic flow) in the human brain, performed by a combination of fMRI protocols that includes structural (T1, T2, diffusion weighted) and functional (multiband/fast imaging, spectroscopy) imaging. 2) fMRI imaging during wakefulness and sleep are determined by simultaneous electroencephalographic (EEG) recordings. 3) The effects of sleep deprivation on the fMRI derived glymphatic flow signal. 4) The effects of the adrenergic antagonist carvedilol on fMRI measurements and sleep intensity. 5) Quantification of cognitive performance before and after a nap in the MRI. Cognitive testing includes: assessments of visual attention, reaction time, paired-associative memory, working memory, emotional recognition and subjective ratings of sleepiness and mood.

Sleep deprivation is common in anaesthesiology residents. Its effects on technical skills have been reported with controversial results. Non-technical skills (team working, situation awareness, decision making and task management) contribute to safe and efficient task performance. They have a crucial role in anaesthetic practice, especially during crisis management. The investigators hypothesized that sleep deprivation was associated with a reduced mobilisation of non-technical skills in anaesthesiology residents.

The main purpose of this study is to investigate the effects of partial sleep deprivation (PSD) on resting state brain connectivity, emotional contagion, empathy, and emotional regulation.

The study proposes to investigate whether acute total deprivation affects metabolism as measured through blood and peripheral tissues. Its aim is also to investigate how acute total sleep deprivation affects neurodegenerative markers, as well as hormones, memory performance and aspects of appetite regulation.

Sleep deprivation can acutely reverse depressive symptoms in patients with major depression. Although underlying mechanisms of the antidepressant action in sleep deprivation are unclear, many of these observations can be explained by abnormal slow wave homeostasis. This study will test the prediction that selectively reducing slow waves during sleep (slow wave deprivation; SWD), without disrupting total sleep time, will yield an antidepressant effect.

Chronic sleep deprivation among adolescents is a prevalent health problem across the world and is associated with a series of short and long term consequences. However, effective interventions targeting on this vulnerable adolescent population is very limited. Majority of the previous sleep education programme are conducted in a school context which personal factors and individualized problems were not addressed. In addition, failure to address "knowledge-action gap" may also explain why individual fail to enact health behaviors even holding positive motivation. In regard to this, investigators proposed an active and person-oriented protocol with the aid of advanced technology in order to improve adolescent sleep health.