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