View clinical trials related to Sleep.
Filter by:The goal of this study is to test the impact of diet on sleep and cardiovascular disease risk factors.
This feasibility study's aim is to determine the effectiveness of lavender oil aromatherapy on quality and duration of sleep in hospitalized adult patients
Sleep leads to consolidation of learning in humans, restoring memories that were forgotten over a waking day and protecting memories against future forgetting. Although theories of consolidation have linked sleep spindles seen on electroencephalography to consolidation due to their putative role in hippocampal transfer to the neocortex (Antony et al, 2019; Antony & Paller, 2017), spindles have not yet been linked to consolidation of perceptual learning or generalized learning. Prior research by a collaborator on this project has shown that sleep specifically aids in the consolidation of generalized perceptual learning of speech (Fenn, Nusbaum, & Margoliash, 2003). Subjects show a 10-point reduction in performance after a waking retention period, while no loss is found after a retention period containing sleep (Fenn et al., 2003). Various measurable activities in the brain are associated with memory consolidation during sleep. This project intends study the effect of dexmedetomidine on memory consolidation during sleep Hypothesis 1 The gain in perceptual learning after a 90 minute natural sleep nap will also occur after 90 minutes of a sufficient dose of IV dexmedetomidine to replicate sleep. This result would suggest that consolidation can occur under this anesthetic state of consciousness. Hypothesis 2 The number and quality of sleep spindles seen on EEG in subjects administered dexmedetomidine will correlate with this gain in perceptual learning. This result would suggest that biomimetic sleep spindles are sufficient for producing memory consolidation. Only those subjects capable of giving their own consent will be considered for this study. The study will enroll 20 healthy subjects for this study between the ages of 18 and 35. All volunteers will be fit and healthy, meeting the American Society of Anesthesiologists (ASA) physical status classification ASA 1 (normal healthy subjects) and ASA 2 (stable chronic condition) and of normal body habitus. Prior to the study enrollment, each volunteer will sign an informed consent form. A standard anesthetic medical history will be taken in addition to performing a focused standard pre-anesthetic physical examination in order to rule out active and chronic medical problems.
Assessing sleep and circadian health in severely obese adolescents undergoing bariatric surgery and examine relation to health outcomes including insulin sensitivity and percent weight loss to date at 1-year and evaluate the impact of sleep extension on health outcomes in this population.
The goal of the proposed project is to identify the impact vagal activity during sleep for memory formation. Nearly 100 years of research contends that sleep plays a critical role in memory consolidation (i.e. the transformation of recent experiences into stable, long-term memories), yet much of this literature has focused on the central nervous system and technologies like electroencephalography (EEG) to unpack neural correlates involved in memory processing. Sleep is also a unique period of autonomic variation and an expansive literature has indicated the critical importance of the autonomic nervous system for memory formation. This project would be amongst the first to examine the autonomic nervous system during sleep as a critical, causal pathway linking sleep to memory processing. The investigators will assess the impact of non-invasive, transcutaneous vagal nerve stimulation on sleep and post-sleep memory performance. Autonomic physiology, including electrocardiography and impedance cardiography, will be gathered at baseline, before the memory task and continuously during sleep to examine vagal tone (i.e. heart rate variability) and sympathetic activation (i.e. pre-ejection period) in response to both active and sham stimulation conditions. Polysomnography will also be gathered during the nap to examine sleep architecture. The proposed research will address a critical gap in the literature by: 1) examining the causal role of the ANS for memory functioning in humans, 2) extending the current understanding of sleep's impact on memory processing, and 3) set the groundwork for novel, sleep-based interventions with the goal of improving cognitive health.
This is a 3-week randomized crossover study to determine the effect of the prior night's sleep duration on energy-balance related behaviors of diet and physical activity the following day. In Week 1, child participants will sleep their usual amount. In week 2, participants will be randomized to either a sleep restricted or a healthy sleep condition for 4 nights. In week 3, participants will cross over to the opposite sleep condition for 4 nights.
This pilot project will evaluate independently two non-pharmacological interventions, 1) Neurosensory, Environmental Adaptive Technology (NEATCAP) and 2) Stochastic Vibrotactile Stimulation (SVS), as adjuvant non-pharmacological interventions for improving sleep and cardio-respiratory function in hospitalized infants. Within-subject design allows subjects to serve as their own control and receive periods of routine care with and without intervention. One intervention will be evaluated per study session. Infants may participate in up to four sessions.
This research study seeks to understand how stress reduction training influences caregiver well-being, sleep, and physiological responses to stress. All participants are caregivers of persons with dementia. Participants will complete a 14-day, online stress-reduction intervention which involves approximately 25-30 minutes of daily practice.
The purpose of this study is to learn more about the causes of Complicated Grief (CG) in those who experience the loss of a loved one. This study aims at learning more about the sleep patterns and emotions in participants with CG as compared to those who have lost a loved one but do not have CG. This study will consist of two aims: Aim 1: Approximately 10 complicated grief (CG) patients and 10 controls (without a current psychiatric diagnosis) will complete a 3-day home polysomnography (PSG) sleep assessment in addition to several self-report sleep and psychiatric measures. Aim 2: Approximately 10 CG patients (subsample from Aim 1) will complete 16 weekly sessions of complicated grief therapy (CGT) in addition to completion of repeated PSG assessments and self-report sleep and psychiatric measures.
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.