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Werth, E; Achermann, P; Borbely, A A (2002). Selective REM sleep deprivation during daytime. II. Muscle atonia in non-REM sleep. American Journal of Physiology: Regulatory, Integrative and Comparative Physiology, 283(2):R527-R532.

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Abstract

One of the hallmarks of rapid eye movement (REM) sleep is muscle atonia. Here we report extended epochs of muscle atonia in non-REM sleep (MAN). Their extent and time course was studied in a protocol that included a baseline night, a daytime sleep episode with or without selective REM sleep deprivation, and a recovery night. The distribution of the latency to the first occurrence of MAN was bimodal with a first mode shortly after sleep onset and a second mode 40 min later. Within a non-REM sleep episode, MAN showed a U-shaped distribution with the highest values before and after REM sleep. Whereas MAN was at a constant level over consecutive 2-h intervals of nighttime sleep, MAN showed high initial values when sleep began in the morning. Selective daytime REM sleep deprivation caused an initial enhancement of MAN during recovery sleep. It is concluded that episodes of MAN may represent an REM sleep equivalent and that it may be a marker of homeostatic and circadian REM sleep regulating processes. MAN episodes may contribute to the compensation of an REM sleep deficit.

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Additional indexing

Item Type:Journal Article, refereed
Communities & Collections:04 Faculty of Medicine > Institute of Pharmacology and Toxicology
DDC:570 Life sciences; biology
610 Medicine & health
Language:English
Date:August 2002
Deposited On:11 Feb 2008 12:18
Last Modified:23 Nov 2012 15:26
Publisher:American Physiological Society
ISSN:0363-6119
Publisher DOI:doi:10.1152/ajpregu.00466.2001
Related URLs:http://ajpregu.physiology.org/cgi/content/abstract/283/2/R527
PubMed ID:12121867

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