Results 31 to 40 of about 152,840 (235)

REM Sleep and Endothermy: Potential Sites and Mechanism of a Reciprocal Interference

open access: yesFrontiers in Physiology, 2017
Numerous data show a reciprocal interaction between REM sleep and thermoregulation. During REM sleep, the function of thermoregulation appears to be impaired; from the other hand, the tonic activation of thermogenesis, such as during cold exposure ...
Matteo Cerri   +4 more
doaj   +1 more source

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

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

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

Sociality Affects REM Sleep Episode Duration Under Controlled Laboratory Conditions in the Rock Hyrax, Procavia capensis. [PDF]

open access: yes, 2017
The rock hyrax, Procavia capensis, is a highly social, diurnal mammal. In the current study several physiologically measurable parameters of sleep, as well as the accompanying behavior, were recorded continuously from five rock hyraxes, for 72 h under ...
Adhil Bhagwandin   +6 more
core   +2 more sources

Chronic escitalopram treatment attenuated the accelerated rapid eye movement sleep transitions after selective rapid eye movement sleep deprivation: a model-based analysis using Markov chains [PDF]

open access: yes, 2014
BackgroundShortened rapid eye movement (REM) sleep latency and increased REM sleep amount are presumed biological markers of depression. These sleep alterations are also observable in several animal models of depression as well as during the rebound ...
A Novati   +83 more
core   +2 more sources

A predictive propensity measure to enter REM sleep

open access: yesFrontiers in Neuroscience
IntroductionDuring sleep periods, most mammals alternate multiple times between rapid-eye-movement (REM) sleep and non-REM (NREM) sleep. A common theory proposes that these transitions are governed by an “hourglass-like” homeostatic need to enter REM ...
Alexander G. Ginsberg   +6 more
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

a previously undescribed entity [PDF]

open access: yes, 2015
Background: There are few studies describing periodic limb movement syndrome (PLMS) in rapid eye movement (REM) sleep in patients with narcolepsy, restless legs syndrome, REM sleep behavior disorder, and spinal cord injury, and to a lesser extent, in ...
Gaede, Gunnar   +5 more
core   +1 more source

REM sleep homeostasis in the absence of REM sleep: Effects of antidepressants

open access: yesNeuropharmacology, 2016
Most antidepressants suppress rapid eye movement (REM) sleep, which is thought to be important to brain function, yet the resulting REM sleep restriction is well tolerated. This study investigated the impact of antidepressants with different mechanisms of action, such as selective serotonin reuptake inhibitors (SSRIs) and tricyclic antidepressants (TCA)
Dale M. Edgar   +6 more
openaire   +4 more sources

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