Results 21 to 30 of about 472,554 (253)

A cluster of mesopontine GABAergic neurons suppresses REM sleep and curbs cataplexy

open access: yesCell Discovery, 2022
Physiological rapid eye movement (REM) sleep termination is vital for initiating non-REM (NREM) sleep or arousal, whereas the suppression of excessive REM sleep is promising in treating narcolepsy.
Ze-Ka Chen   +17 more
doaj   +1 more source

Molecular Mechanisms of REM Sleep

open access: yesFrontiers in Neuroscience, 2020
Rapid-eye movement (REM) sleep is a paradoxical sleep state characterized by brain activity similar to wakefulness, rapid-eye-movement, and lack of muscle tone.
Rikuhiro G. Yamada   +2 more
doaj   +1 more source

Circadian and ultradian NREM-REM sleep modulation of dream recall : effects of age and spectral activity [PDF]

open access: yes, 2011
This thesis deals with the electrophysiological correlates of sleep prior to dream recall and the age-related effects on dream processing. The dual NREM/REM sleep cycle and the circadian modulation of REM sleep sum to generate dream processing.
Laxhmi Chellappa, Sarah
core   +1 more source

A moderate increase of physiological CO2 in a critical range during stable NREM sleep episode: A potential gateway to REM sleep

open access: yesFrontiers in Neurology, 2012
Sleep is characterized as rapid eye movement (REM) and non-rapid eye movement (NREM) sleep. Studies suggest that wake-related neurons in the basal forebrain, posterior hypothalamus and brainstem and NREM sleep-related neurons in the anterior-hypothalamic
Vibha eMadan, Sushil K. Jha
doaj   +1 more source

Prodromal Lewy Body Disorder Features in REM Sleep Behavior Disorder With Biomarker-Defined Synucleinopathy. [PDF]

open access: yesAnn Clin Transl Neurol
ABSTRACT Objective Isolated rapid eye movement sleep behavior disorder (iRBD) is a prodromal state for Lewy body disorders and exhibits biological heterogeneity that may influence clinical expression and progression. We examined clinical features in individuals with iRBD and biomarker‐defined synucleinopathy.
Weintraub D   +24 more
europepmc   +2 more sources

A continuum model for the dynamics of the phase transition from slow-wave sleep to REM sleep [PDF]

open access: yes, 2010
Previous studies have shown that activated cortical states (awake and rapid eye-movement (REM) sleep), are associated with increased cholinergic input into the cerebral cortex.
Voss, Logan J.   +5 more
core   +1 more source

Overview of Idiopathic REM Sleep Behavior Disorder [PDF]

open access: yes, 2022
REM sleep behavior disorder (RBD) is a REM sleep-related parasomnia characterized by action of dream content, which is often an aggressive or terrible nightmare.
Tomoyuki, Miyamoto, Miyamoto, Tomoyuki
core   +1 more source

Coupled flip-flop model for REM sleep regulation in the rat.

open access: yesPLoS ONE, 2014
Recent experimental studies investigating the neuronal regulation of rapid eye movement (REM) sleep have identified mutually inhibitory synaptic projections among REM sleep-promoting (REM-on) and REM sleep-inhibiting (REM-off) neuronal populations that ...
Justin R Dunmyre   +2 more
doaj   +1 more source

The Natural History of Insomnia: Acute Insomnia and First-onset Depression [PDF]

open access: yes, 2013
Study Objectives: While many studies have examined the association between insomnia and depression, no studies have evaluated these associations 1) within a narrow time frame, 2) with specific reference to acute & chronic insomnia, and 3) using ...
Michael L. Perlis   +18 more
core   +1 more source

Antidepressants and their effect on sleep [PDF]

open access: yes, 2005
Given the relationship between sleep and depression, there is inevitably going to be an effect of antidepressants on sleep. Current evidence suggests that this effect depends on the class of antidepressant used and the dosage.
Mayers, Andrew G.   +3 more
core   +1 more source

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