Results 61 to 70 of about 152,319 (200)

Gastrodin Improves Cognitive Dysfunction in REM Sleep-Deprived Rats by Regulating TLR4/NF-κB and Wnt/β-Catenin Signaling Pathways

open access: yesBrain Sciences, 2023
Gastrodin is the active ingredient in Gastrodia elata. Our previous studies demonstrated that gastrodin ameliorated cerebral ischemia–reperfusion and hypoperfusion injury and improved cognitive deficit in Alzheimer’s disease.
Bo Liu   +4 more
doaj   +1 more source

Characterization of Sleep Stages by Correlations of Heartbeat Increments

open access: yes, 2002
We study correlation properties of the magnitude and the sign of the increments in the time intervals between successive heartbeats during light sleep, deep sleep, and REM sleep using the detrended fluctuation analysis method.
A. Bunde   +45 more
core   +1 more source

Neural circuitry of rapid eye movement sleep homeostasis: Mechanistic insights and pathological implications

open access: yesSleep Research
Rapid eye movement (REM) sleep is a unique brain state crucial for emotion, memory, and plasticity. Unlike well‐understood non‐REM (NREM) sleep homeostasis, REM sleep homeostasis remains less clearly defined.
Ting He
doaj   +1 more source

Finger Twitches are More Frequent in REM Sleep Than in Non-REM Sleep

open access: yesNature and Science of Sleep, 2020
Andrew M Reiter,1 Gregory D Roach,1 Charli Sargent,1 Leon Lack2 1Appleton Institute for Behavioural Science, Central Queensland University, Goodwood, SA 5034, Australia; 2College of Education, Psychology and Social Work, Flinders University of South ...
Reiter AM, Roach GD, Sargent C, Lack L
doaj  

Wilson?s disease presenting as rapid eye movement sleep behavior disorder: a possible window to early treatment

open access: yesArquivos de Neuro-Psiquiatria, 2014
Objective To describe characteristics of REM sleep behavior disorder in Wilson’s disease. Method Questionnaire-based interviews (patients and relatives), neurological examinations, two-week prospective dream-diary, video-polysomnography, transcranial ...
Gotthard G. Tribl   +5 more
doaj   +1 more source

Effects of valerian extract on the sleep-wake cycle in sleep-disturbed rats. [PDF]

open access: yes, 2005
The present study was performed to investigate the effects of valerian extract on the sleep-wake cycle using sleep-disturbed model rats. A significant shortening in sleep latency was observed with valerian extract at doses of 1000 and 3000 mg/kg.
Fujimura, Katsuyuki   +3 more
core   +1 more source

Blood pressure dipping during REM and non-REM sleep in patients with moderate to severe obstructive sleep apnea

open access: yesScientific Reports, 2021
A limited number of papers have addressed the association between non-dipping-blood pressure (BP) obstructive sleep apnea (OSA), and no study has assessed BP-dipping during rapid eye movement (REM) and non-REM sleep in OSA patients.
Ahmed S. BaHammam   +5 more
doaj   +1 more source

Nefazodone and REM Sleep: How Do Antidepressant Drugs Decrease REM Sleep? [PDF]

open access: yesSleep, 1998
In previous uncontrolled studies, nefazodone, a new antidepressant drug, increased REM sleep or had no effect on REM sleep. We report a double-blind, placebo-controlled, parallel group study on effects of nefazodone (N) on polysomnographic sleep variables in healthy human volunteers.
G, Vogal   +4 more
openaire   +2 more sources

Selective REM Sleep Deprivation Improves Expectation-Related Placebo Analgesia.

open access: yesPLoS ONE, 2015
The placebo effect is a neurobiological and psychophysiological process known to influence perceived pain relief. Optimization of placebo analgesia may contribute to the clinical efficacy and effectiveness of medication for acute and chronic pain ...
Florian Chouchou   +3 more
doaj   +1 more source

Evolutionary Origin of Distinct NREM and REM Sleep

open access: yesFrontiers in Psychology, 2020
Sleep is mandatory in most animals that have the nervous system and is universally observed in model organisms ranging from the nematodes, zebrafish, to mammals.
Risa Yamazaki   +7 more
doaj   +1 more source

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