Results 31 to 40 of about 410,492 (225)

Non-REM dreaming in relation to the cyclic alternating pattern an exploratory study [PDF]

open access: yes, 2013
Includes bibliographical references.Dreaming is yet to be studied in relation to sleep microstructure. By endeavouring to study mentation in relation to the finer neurophysiological processes underlying the rhythmicity of the sleep cycles, dream science ...
Wainstein, Danyal
core   +1 more source

Local Sleep Slow-Wave Activity Colocalizes With the Ictal Symptomatogenic Zone in a Patient With Reflex Epilepsy: A High-Density EEG Study

open access: yesFrontiers in Systems Neuroscience, 2020
Background: Slow-wave activity (SWA) during non-rapid eye movement (NREM) sleep reflects synaptic potentiation during preceding wakefulness. Epileptic activity may induce increases in state-dependent SWA in human brains, therefore, localization of SWA ...
Eric W. Moffet   +20 more
doaj   +1 more source

An Asymmetrical Hypothesis for the NREM-REM Sleep Alternation—What Is the NREM-REM Cycle?

open access: yesFrontiers in Neuroscience, 2021
Since the discovery of rapid eye movement (REM) sleep (Aserinsky and Kleitman, 1953), sleep has been described as a succession of cycles of non-REM (NREM) and REM sleep episodes.
Olivier Le Bon
doaj   +1 more source

CD40 activation induces NREM sleep and modulates genes associated with sleep homeostasis [PDF]

open access: yes, 2013
The T-cell derived cytokine CD40 ligand is overexpressed in patients with autoimmune diseases. Through activation of its receptor, CD40 ligand leads to a tumor necrosis factor (TNF) receptor 1 (TNFR1) dependent impairment of locomotor activity in mice ...
Huber, Reto; https://orcid.org/   +23 more
core   +1 more source

Functional anatomy of non-REM sleep

open access: yesFrontiers in Neurology, 2011
The state of non-REM sleep (NREM), or slow wave sleep, is associated with a synchronized EEG pattern in which sleep spindles and/or K complexes and high-voltage slow wave activity (SWA) can be recorded over the entire cortical surface. In humans, NREM is
Isabel Trinidad De Andrés   +2 more
doaj   +1 more source

NREM sleep stages specifically alter dynamical integration of large-scale brain networks

open access: yesiScience, 2021
Summary: Functional dissociations in the brain observed during non-rapid eye movement (NREM) sleep have been associated with reduced information integration and impaired consciousness that accompany increasing sleep depth. Here, we explored the dynamical
Anjali Tarun   +8 more
doaj   +1 more source

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

Multicomponent Analysis of Sleep Using Electrocortical, Respiratory, Autonomic and Hemodynamic Signals Reveals Distinct Features of Stable and Unstable NREM and REM Sleep

open access: yesFrontiers in Physiology, 2020
A new concept of non-rapid eye movement (NREM) and rapid eye movement (REM) sleep is proposed, that of multi-component integrative states that define stable and unstable sleep, respectively, NREMS, NREMUS REMS, and REMUS.
Christopher Wood   +4 more
doaj   +1 more source

Endocannabinoid Signaling Regulates Sleep Stability.

open access: yesPLoS ONE, 2016
The hypnogenic properties of cannabis have been recognized for centuries, but endogenous cannabinoid (endocannabinoid) regulation of vigilance states is poorly characterized.
Matthew J Pava   +2 more
doaj   +1 more source

Sleep-wake dynamics pre- and post-exposure to chronic social stress

open access: yesiScience, 2021
Summary: An analytical approach combining the statistical distributions of the sleep-wake bouts and the Markov transition matrix is used to explain the under-examined association between the microarchitecture of the sleep-wake cycle and susceptibility to
Basma Radwan   +2 more
doaj   +1 more source

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