Emotional facial expressions during REM sleep dreams.

abstract：:Genetic factors affect many aspects of sleep, such as sleep length. We investigated the contribution of genetic factors to stability and change of sleep length among adults over a 15-year period. In this representative follow-up study we used the Finnish Twin Cohort as the study population. Questionnaire surveys were ...

journal_title：Journal of sleep research

authors： Hublin C,Partinen M,Koskenvuo M,Kaprio J

更新日期：2013-10-01 00:00:00

abstract：:Depression is associated with disturbances to sleep and the 24-h sleep-wake pattern (known as the rest-activity rhythm: RAR). However, there remains a need to identify the specific sleep/RAR correlates of depression symptom severity in population subgroups, such as strained dementia caregivers, who are at elevated ris...

journal_title：Journal of sleep research

authors： Smagula SF,Krafty RT,Taylor BJ,Martire LM,Schulz R,Hall MH

更新日期：2017-12-01 00:00:00

abstract：:The objective of this study was to examine which genetic and environmental influences contribute to individual differences in sleep duration in a sample of Croatian adolescent/early adult twins, as well as to investigate the relationship between personality and sleep duration. Participants included 339 twin pairs (105...

journal_title：Journal of sleep research

authors： Butkovic A,Vukasovic T,Bratko D

更新日期：2014-04-01 00:00:00

abstract：:Disturbed sleep during gestation may lead to adverse outcomes for both mother and child. Animal research plays an important role in providing insights into this research field by enabling ethical and methodological requirements that are not possible in humans. Here, we present an overview and discuss the main research...

journal_title：Journal of sleep research

authors： Pires GN,Benedetto L,Cortese R,Gozal D,Gulia KK,Kumar VM,Tufik S,Andersen ML

更新日期：2020-07-02 00:00:00

abstract：:The relationships between older age and sleep efficiency have traditionally been assessed using cross-sectional studies that ignore changes within individuals as they age. This research examines the determinants of sleep efficiency, the heterogeneity in an individual's sleep efficiency trajectory across a period of up...

journal_title：Journal of sleep research

authors： Didikoglu A,Maharani A,Tampubolon G,Canal MM,Payton A,Pendleton N

更新日期：2020-06-01 00:00:00

abstract：:Rett syndrome is a rare neurodevelopmental disorder usually affecting females, and is associated with a mutation in the MECP2 gene. Sleep problems occur commonly and we investigated the trajectories and influences of age, mutation and treatments. Data were collected at six time points over 12 years from 320 families r...

journal_title：Journal of sleep research

authors： Wong K,Leonard H,Jacoby P,Ellaway C,Downs J

更新日期：2015-04-01 00:00:00

abstract：:Sleep has been postulated to promote brain energy restoration. It is as yet unknown if increasing the energy availability within the brain reduces sleep need. The guanidine amino acid creatine (Cr) is a well-known energy booster in cellular energy homeostasis. Oral Cr-monohydrate supplementation (CS) increases exercis...

journal_title：Journal of sleep research

authors： Dworak M,Kim T,Mccarley RW,Basheer R

更新日期：2017-06-01 00:00:00

abstract：:Childhood severe obesity is a serious, urgent and complex global health problem with long-term co-morbidities. Obstructive sleep-disordered breathing is more common in obese children and adolescents. Increased body mass index is associated with an increase in apnea-hypopnea index. Obstructive sleep apnea leads to a de...

journal_title：Journal of sleep research

authors： Ischander MM,Lloyd RD Jr

更新日期：2020-10-07 00:00:00

abstract：:Discrepancies between actigraphic and self-reported sleep measures are common. Studies of people with insomnia, in whom both sleep disturbances and discrepancy are common, suggest disturbances and discrepancy reflect differences in the sleeping brain's activity measurable using spectral electroencephalogram (EEG). Dis...

journal_title：Journal of sleep research

authors： Smagula SF,Sofer T,Guo N,Prerau M,Purcell S,Mariani S,Yaffe K,Redline S,Stone KL

更新日期：2020-03-21 00:00:00

abstract：:To determine whether the circadian disruption of the sleep/wake cycle observed in sleeping sickness, human African trypanosomiasis (HAT), can be reversed after trypanosomicide treatment, 10 Congolese patients infected by Trypanosoma brucei gambiense underwent 24-h polysomnographic recordings before treatment with mela...

journal_title：Journal of sleep research

authors： Buguet A,Tapie P,Bert J

更新日期：1999-09-01 00:00:00

abstract：:Functional magnetic resonance imaging (fMRI) can be used to detect regional brain responses to changes in sensory stimuli. We have used fMRI to determine the amount of visual and auditory cortical activation in 12 normal subjects and 12 subjects with the narcoleptic syndrome, using a multiplexed visual and auditory st...

journal_title：Journal of sleep research

authors： Ellis CM,Monk C,Simmons A,Lemmens G,Williams SC,Brammer M,Bullmore E,Parkes JD

更新日期：1999-06-01 00:00:00

abstract：:Job stress and the Circadian Locomotor Output Cycles Kaput (CLOCK) gene could affect circadian rhythm and sleep quality. The main aim of our present study was to investigate the association of job stress, CLOCK gene polymorphism and their interaction with sleep quality in a non-clinical Chinese Han population, which h...

journal_title：Journal of sleep research

authors： Li Y,Cao Z,Wu S,Wang C,He S,Dong Y,Zhang X

更新日期：2021-02-01 00:00:00

abstract：:Excessive daytime sleepiness (EDS) is a frequent symptom of patients with obstructive sleep apnoea (OSA). EDS is a high-risk factor for accidents at work and on the road. Thirty untreated patients with different levels of severity of OSA were studied concerning night sleep and EDS. The criterion for severity was the r...

journal_title：Journal of sleep research

authors： Sauter C,Asenbaum S,Popovic R,Bauer H,Lamm C,Klösch G,Zeitlhofer J

更新日期：2000-09-01 00:00:00

abstract：:An accurate home sleep study to assess electroencephalography (EEG)-based sleep stages and EEG power would be advantageous for both clinical and research purposes, such as for longitudinal studies measuring changes in sleep stages over time. The purpose of this study was to compare sleep scoring of a single-channel EE...

journal_title：Journal of sleep research

authors： Lucey BP,Mcleland JS,Toedebusch CD,Boyd J,Morris JC,Landsness EC,Yamada K,Holtzman DM

更新日期：2016-12-01 00:00:00

abstract：:It has been hypothesized that insufficient sleep may compromise neuronal function and contribute to neurodegenerative processes. While sleep loss by itself may not lead to cell death directly, it may affect the sensitivity to a subsequent neurodegenerative insult. Here we examined the effects of chronic sleep restrict...

journal_title：Journal of sleep research

authors： Novati A,Hulshof HJ,Granic I,Meerlo P

更新日期：2012-02-01 00:00:00

abstract：:In patients with chronic obstructive pulmonary disease (COPD), sleep is often fragmented while, conversely, the use of sleep medications is of concern in these patients due to potential impairment of nocturnal breathing. This randomised, double-blind, placebo-controlled, two-period crossover study was conducted to eva...

journal_title：Journal of sleep research

authors： Boof ML,Dingemanse J,Brunke M,Esselmann A,Heymer P,Kestermann O,Lederer K,Fietze I,Ufer M

更新日期：2021-01-08 00:00:00

abstract：:Sleep structure is highly stable within individuals but different between individuals. The present study investigated robustness of the individual sleep structure to extended total sleep deprivation. Seventeen healthy men spent a baseline night (23:00-07:00 hours), 58 h of sleep deprivation and a 14-h recovery night (...

journal_title：Journal of sleep research

authors： Hennecke E,Elmenhorst D,Mendolia F,Putzke M,Bauer A,Aeschbach D,Elmenhorst EM

更新日期：2019-06-01 00:00:00

abstract：:Snoring, a leading symptom of the sleep apnoea syndrome (SAS), has been reported to be one of the risk factors for sleep-related cerebral strokes. Episodes of apnoea are accompanied by hypoxaemia as well as hypercapnia. As CO2 constitute a major regulatory factor controlling cerebral blood flow, it is likely that chan...

journal_title：Journal of sleep research

authors： Hajak G,Klingelhöfer J,Schulz-Varszegi M,Sander D,Staedt J,Conrad B,Rüther E

更新日期：1995-06-01 00:00:00

abstract：:Stimulus factors known to influence the amplitude of the well known endogenous event-related potential (ERP) component P300 were manipulated to determine whether they have the same, or a different, influence on the amplitude of positivities of the sleep ERPs identified as P220, P450, and P900. Behavioral responsivenes...

journal_title：Journal of sleep research

authors： Hull J,Harsh J

更新日期：2001-03-01 00:00:00

abstract：:The prevalence of mild cognitive impairment (MCI) increases among elderly people and is associated with a high risk of dementia. Identifying factors that may contribute to the progress of MCI to dementia is critical. The objective of this study was to examine the association of objective sleep with cognitive performan...

journal_title：Journal of sleep research

authors： Basta M,Simos P,Vgontzas A,Koutentaki E,Tziraki S,Zaganas I,Panagiotakis S,Kapetanaki S,Fountoulakis N,Lionis C

更新日期：2019-12-01 00:00:00

abstract：:Current evidence suggests that elevations in blood pressure during obstructive apnoeic episodes increase pharyngeal collapsibility and the severity of obstructive sleep apnoea. ...

journal_title：Journal of sleep research

authors： Schwartz AR,Rowley JA,O'Donnell C,King ED,Mayor A,Smith PL

更新日期：1995-06-01 00:00:00

abstract：:Although various investigators have suggested algorithms for the automatic detection of eye movements during sleep, objective comparisons of the proposed methods have previously been difficult due to different recording arrangements of different investigators. In this study the results of five eye movement detection a...

journal_title：Journal of sleep research

authors： Värri A,Kemp B,Rosa AC,Nielsen KD,Gade J,Penzel T,Hasan J,Hirvonen K,Häkkinen V V,Kamphuisen HA,Mourtazaev MS

更新日期：1995-06-01 00:00:00

abstract：:Sleep/wakefulness (S/W) disorders are frequent in Parkinson's disease (PD). The underlying causes have yet to be elucidated but dopaminergic neurodegenerative lesions seem to contribute to appearance of the disorders and anti-Parkinsonian medication is known to accentuate S/W problems. Hence, we reasoned that studying...

journal_title：Journal of sleep research

authors： Laloux C,Derambure P,Houdayer E,Jacquesson JM,Bordet R,Destée A,Monaca C

更新日期：2008-03-01 00:00:00

abstract：:To date very little research has been conducted on night-to-night variability in the incidence of insomnia. It is unclear from prior research whether subjects with primary insomnia (PI) exhibit good sleep (or better than average sleep) on some interval basis. In the present study, pilot data are provided on: (1) the f...

journal_title：Journal of sleep research

authors： Perlis ML,Swinkels CM,Gehrman PR,Pigeon WR,Matteson-Rusby SE,Jungquist CR

更新日期：2010-03-01 00:00:00

abstract：:Sleep loss, which affects about one-third of the US population, can severely impair physical and neurobehavioural performance. Although caffeine, the most widely used stimulant in the world, can mitigate these effects, currently there are no tools to guide the timing and amount of caffeine consumption to optimize its ...

journal_title：Journal of sleep research

authors： Vital-Lopez FG,Ramakrishnan S,Doty TJ,Balkin TJ,Reifman J

更新日期：2018-10-01 00:00:00

abstract：:The present study sought to investigate the meaning of subjectively good sleep, using a longitudinal and intraindividual design. Eight subjects slept in an isolation unit according to an irregular schedule of 6 h sleeps and 1 h naps, designed to give normal amounts of time in bed (1/3 of total), but variable sleep qua...

journal_title：Journal of sleep research

authors： Åkerstedt T,Hume K,Minors D,Waterhouse J

更新日期：1994-09-01 00:00:00

abstract：:An increasing number of criminal cases have claimed the defendant to be in a state of sleepwalking or related disorders induced by high quantities of alcohol. Sleepwalkers who commit violent acts, sexual assaults and other criminal acts are thought to be in a state of automatism, lacking conscious awareness and crimin...

journal_title：Journal of sleep research

authors： Pressman MR,Mahowald MW,Schenck CH,Bornemann MC

更新日期：2007-06-01 00:00:00

abstract：:Whether nasal congestion promotes obstructive sleep apnea is controversial. Therefore, we performed a randomized placebo-controlled cross-over trial on the effects of topical nasal decongestion in patients with obstructive sleep apnea syndrome (OSA) and nasal congestion. Twelve OSA patients with chronic nasal congesti...

journal_title：Journal of sleep research

authors： Clarenbach CF,Kohler M,Senn O,Thurnheer R,Bloch KE

更新日期：2008-12-01 00:00:00

abstract：:Cetacean sleep phenomenology consists of a combination of unihemispheric slow wave sleep and a massive reduction in the amount of rapid eye movement sleep. Despite various proposals, the selection pressure driving the evolution of this combined sleep phenomenology is unknown. It was recently suggested that the need to...

journal_title：Journal of sleep research

authors： Pillay P,Manger PR

更新日期：2004-12-01 00:00:00

abstract：:Since rapid eye movement (REM) sleep deprivation has been reported to affect the neuronal excitability in the brain, it was hypothesized that a change in the neuronal membrane-bound Na-K ATPase activity might be at least one of the factors inducing such a change. Therefore, in this study rats were deprived of REM slee...

journal_title：Journal of sleep research

authors： Gulyani S,Mallick BN

更新日期：1993-03-01 00:00:00