Results 71 to 80 of about 156,934 (328)

A high-density electroencephalography study reveals abnormal sleep homeostasis in patients with rapid eye movement sleep behavior disorder

open access: yesScientific Reports, 2021
Rapid eye movement (REM) sleep behavior disorder (RBD) is characterized by disrupting motor enactments during REM sleep, but also cognitive impairments across several domains.
Amandine Valomon   +7 more
doaj   +1 more source

Effects of social stimuli on sleep in mice: non-rapid-eye-movement (NREM) sleep is promoted by aggressive interaction but not by sexual interaction [PDF]

open access: yes, 2001
Sleep is generally considered to be a process of recovery from prior wakefulness. In addition to being affected by the duration of the waking period, sleep architecture and sleep EEG also depend on the quality of wakefulness.
Meerlo, Peter,, Turek, Fred W.,
core   +1 more source

Serum p‐tau217 Is a Prognostic Indicator of Cognitive Impairment in Idiopathic REM Sleep Behavior Disorder

open access: yesAnnals of Neurology, EarlyView.
Objective Assess the performance of serum phosphorylated tau 217 (p‐tau217) and neurofilament light chain (NfL) in predicting risk of cognitive impairment or phenoconversion to dementia in individuals with iRBD. Methods We measured serum p‐tau217 and NfL levels by electrochemiluminescence across 4 polysomnographically confirmed iRBD cohorts (n = 300 ...
Shijun Yan   +7 more
wiley   +1 more source

Automated scoring of pre-REM sleep in mice with deep learning

open access: yesScientific Reports, 2021
Reliable automation of the labor-intensive manual task of scoring animal sleep can facilitate the analysis of long-term sleep studies. In recent years, deep-learning-based systems, which learn optimal features from the data, increased scoring accuracies ...
Niklas Grieger   +4 more
doaj   +1 more source

Toward Harmonizing Quantification of Dopamine Neuron Imaging Biomarkers in Parkinson's Disease: The Centamine Scale

open access: yesAnnals of Neurology, EarlyView.
Objective Dopaminergic imaging is a key biomarker for both the investigation of the biology of Parkinson's disease and related synucleinopathies and the evaluation of potential therapies in clinical trials. This work presents a harmonized approach for quantifying dopaminergic molecular imaging tracers, such as [123I]ioflupane (dopamine transporter scan
Zhen Fan   +174 more
wiley   +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

Reply to Grace: Role of cholinergic neurons in rapid eye movement (REM) sleep control [PDF]

open access: yes, 2017
We thank Grace (1) for the opportunity to discuss the role of cholinergic neurons in rapid eye movement (REM) sleep further. Grace suggests that optogenetic activation of a population of neurons does not necessarily demonstrate their role in the ...
Brown, Emery Neal, Van Dort, Christa Joy
core   +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

Speech Biomarkers From Smartphone Calls Track Progression in REM Sleep Behavior Disorder and Parkinson's Disease

open access: yesAnnals of Neurology, EarlyView.
Objective This 24‐month longitudinal study involving isolated rapid eye movement sleep behavior disorder (iRBD), early‐stage Parkinson's disease (PD), and matched healthy control subjects aimed to assess whether acoustic speech features from real‐world smartphone calls provide passive progressive biomarkers in synucleinopathies.
Michal Šimek   +11 more
wiley   +1 more source

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