Active clinical trials for "Sleep Deprivation"

This study will measure brain activity in individuals performing language tasks while in various states of alertness to learn more about how the central nervous system is affected by impairments such as sleepiness. Healthy normal volunteers between 20 and 40 years of age may be eligible for this study. Candidates must be non-smokers, right-handed, speak English fluently and have at least 12 years of education. They are screened with a medical history, physical examination, hearing and speech evaluation, computer task training, blood and urine tests and a late-night functional magnetic resonance imaging (fMRI) scan (see description below). Before screening and again before participating in the study, candidates wear an actigraph (a wristwatch-like device that records motion) for 7 days to provide a measure of their sleep-wake patterns. Participants undergo the following tests and procedures: Extended wakefulness: Subjects are kept awake longer than is normal for them in their everyday life to be able to examine the brain under conditions of sleepiness. They are engaged in activities with the research staff during this waking time. Functional magnetic resonance imaging: Subjects undergo five separate fMRI scans-one during screening and four others during the main part of the study. fMRI uses a magnetic field and radio waves to produce images of the brain. The subject lies on a table that is moved into the scanner (a narrow cylinder), wearing earplugs to muffle loud knocking and thumping sounds that occur during the scanning process. Brain scans are taken at rest and while the subject performs tasks, which include pressing a button upon seeing certain shapes and performing various language tasks, such as saying memorized or new words, listening to narratives, and describing everyday procedures. Neurological, speech-language, and neuropsychological testing: Before the fMRI exams and during the period of extended wakefulness, subjects complete a series of tests that measure speech, language, memory and visual skills. Portions of the tests may be video- or autiotaped. Interviews and questionnaires: Participants are interviewed about their handedness, sleep history, and presence of medical or neurological symptoms. Electrophysiological studies: Subjects have an electroencephalograph (EEG) to measure the electrical activity of the brain and surface electromyography (EMG) to measure movements of muscles involved in moving and speaking. For the EEG, electrodes (small metal disks) are attached to the surface of the scalp or to a cap placed over the head. For the EMG, electrodes are attached to the skin of the face and neck by plastic or paper tape.

7 to 14 days actimetry recording in order to exclude sleep deprivation just before hospitalisation for differential diagnosis of hypersomnia

The goal of this study is to identify causes of insufficient sleep and sleep disruptors in adolescents with type 1 diabetes. For this study, adolescents will wear an actigraphy watch and complete sleep diaries for seven days. On completion of the seven days, they will complete several questionnaires regarding sleep, fear of hypoglycemia, and anxiety and depression. A subset of participants will additionally complete a qualitative interview session to obtain a deeper understanding of sleep disruptors and barriers and facilitators to improving sleep health.

The purpose of this study is to determine if sleep deprivation results in increased esophageal acid exposure in healthy controls and gastroesophageal reflux disease (GERD) patients.

Long and unorthodox working hours (e.g. 24 hours or 23pm-07am shifts for doctors and nurses respectively) combined with sleep deprivation, may affect cognitive functions such as response time and concentration. These parameters may be tested using a driving simulator. Apart from the obvious consequences of driving skills impairment for the medical personal, it may serve as a quality assessment tool in evaluating the impact of workload and sleep deprivation on medical staff's function. This study aims to assess the effect of work load and sleep deprivation on medical staff's driving skills.

There is an increase interest in the use of wearable activity trackers and wearable technology in the various medical fields. Such devices can increase physical activity and decrease weight significantly. Field and laboratory studies have shown that shift work can alter circadian rhythms, disrupt the sleep cycle, and hinder human performance. Sleep deprivation reduces alertness level, and may increase reaction time, cause memory impairment and impaired motor skills. Disrupted circadian rhythms, a well-known consequence of atypical work schedules, have been linked to neurodegeneration. The aim of this pilot study is to evaluate the feasibility of wearable devices to collect data on physiologic parameters during sleep and awake under stress conditions. The study population will include 30 Rambam Health Care Campus medical residents who work nights on call. The length of experiment per participant will be one month. Subjective data on stress will be collected during the study. Data on vital signs and sleep stages will be collected through a smart watch Fitbit® Charge HR.

The aim of the study is to investigate the relationship of nocturnal use of eye masks and immune function, cerebral function and outcomes of patients with sepsis. Thus more efficient and comprehensive treatment could be provided for patients in the duration of admission in intensive care unit.

Sleep deprivation was found to affect many organs including the immune system and predisposing for various health consequences including diabetes hypertension infections and increase in neoplastic diseases. Subjects will be evaluated for immune parameters in peripheral blood test following a regular nigh sleep and compared with a test performed following a night shift in which they slept less than 3 hours. Each participant will serve as its own control.

The aim of our study is the analysis of sleep phases and quality as well as the detection of respiratory pauses in subjects with cognitive disorder. To assess whether sleep quality is associated with the blood-brain barrier and Alzheimer's disease, which may be indicative of an early, non-invasively measurable change in brain activity in the early stages of Alzheimer's disease.

This prospective observational study aims at investigating whether insomnia or sleep deprivation during the 3rd trimester of pregnancy can be implicated in the occurrence of adverse maternal or fetal outcome. Data will be collected from all participants with special emphasis on: history of impaired sleep due to insomnia or sleep deprivation due to working on night shifts, history of insomnia during first 20 weeks of pregnancy.Number of night sleep hours and total number of sleep hours during the day will be recorded for each participant. The Insomnia severity index(ISI) a brief self report questionnaire used for assessing the degree of current insomnia will be administered to all participants at the time of their routine antenatal care visits to detect insomnia and its severity if present .The possible relationship between clinical insomnia or sleep deprivation and the occurrence of preterm birth or IUGR will be explored and the association with increased Cesarean delivery rate or painful and/ or prolonged labour.