Results 21 to 30 of about 117,656 (188)

Rapid eye movements during sleep in mice: High trait-like stability qualifies rapid eye movement density for characterization of phenotypic variation in sleep patterns of rodents

open access: yesBMC Neuroscience, 2011
Background In humans, rapid eye movements (REM) density during REM sleep plays a prominent role in psychiatric diseases. Especially in depression, an increased REM density is a vulnerability marker for depression.
Fulda Stephany   +5 more
doaj   +1 more source

A Hypothalamic Switch for REM and Non-REM Sleep [PDF]

open access: yesNeuron, 2018
Rapid eye movement (REM) and non-REM (NREM) sleep are controlled by specific neuronal circuits. Here we show that galanin-expressing GABAergic neurons in the dorsomedial hypothalamus (DMH) comprise separate subpopulations with opposing effects on REM versus NREM sleep.
Min Xu   +11 more
openaire   +5 more sources

Melanin-Concentrating Hormone (MCH): Role in REM Sleep and Depression. [PDF]

open access: yes, 2015
The melanin-concentrating hormone (MCH) is a peptidergic neuromodulator synthesized by neurons of the lateral sector of the posterior hypothalamus and zona incerta.
Benedetto, Luciana   +8 more
core   +3 more sources

Evaluating the evidence surrounding pontine cholinergic involvement in REM sleep generation

open access: yesFrontiers in Neurology, 2015
Rapid eye movement (REM) sleep - characterized by vivid dreaming, motor paralysis, and heightened neural activity - is one of the fundamental states of the mammalian central nervous system.
Kevin P Grace, Richard L Horner
doaj   +1 more source

Clinical characteristics of insomnia in perimenopausal women: a clinical study based on polysomnography

open access: yesDi-san junyi daxue xuebao, 2021
Objective To investigate the clinical characteristics and influencing factors of insomnia in perimenopausal women based on polysomnography (PSG). Methods A total of 52 perimenopausal women admitted to our psychological clinic due to insomnia were ...
ZHAO Yuan, CHEN Qingqiu, JIANG Chenggang
doaj   +1 more source

Are there sleep-specific phenotypes in patients with chronic fatigue syndrome? A cross-sectional polysomnography analysis [PDF]

open access: yes, 2013
Objectives: Despite sleep disturbances being a central complaint in patients with chronic fatigue syndrome (CFS), evidence of objective sleep abnormalities from over 30 studies is inconsistent.
Deary, Vincent   +3 more
core   +1 more source

Daytime REM sleep affects emotional experience but not decision choices in moral dilemmas [PDF]

open access: yes, 2017
Moral decision-making depends on the interaction between automatic emotional responses and rational cognitive control. A natural emotional regulator state seems to be sleep, in particular rapid eye movement (REM) sleep.
Cellini, Nicola   +3 more
core   +2 more sources

Is REM Density a Measure of Arousal during Sleep?

open access: yesBrain Sciences, 2023
Rapid eye movements (REMs), an expression of REM sleep phasic activity, occur against a stable background of cortical desynchronization and the absence of axial tone. The significance of REMs during the sleep period was initially attributed to the mental
Giuseppe Barbato
doaj   +1 more source

Evening light environments can be designed to consolidate and increase the duration of REM-sleep

open access: yesScientific Reports, 2022
Evening exposure to short-wavelength light has disruptive effects on circadian rhythms and sleep. These effects can be mitigated by blocking short-wavelength (blue) frequencies, which has led to the development of evening blue-depleted light environments
Daniel Vethe   +13 more
doaj   +1 more source

Optogenetic activation of cholinergic neurons in the PPT or LDT induces REM sleep [PDF]

open access: yes, 2014
Rapid eye movement (REM) sleep is an important component of the natural sleep/wake cycle, yet the mechanisms that regulate REM sleep remain incompletely understood.
Brown, Emery N.   +12 more
core   +1 more source

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