Cortical temperature and EEG slow-wave activity in the rat: analysis of vigilance state related changes.

Détails

ID Serval
serval:BIB_D1607D429855
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Cortical temperature and EEG slow-wave activity in the rat: analysis of vigilance state related changes.
Périodique
Pflügers Archiv : European journal of physiology
Auteur(s)
Franken P., Tobler I., Borbély A.A.
ISSN
0031-6768
Statut éditorial
Publié
Date de publication
04/1992
Peer-reviewed
Oui
Volume
420
Numéro
5-6
Pages
500-507
Langue
anglais
Résumé
Vigilance states, cortical temperature (TCRT), and electroencephalograph (EEG) slow-wave-activity (SWA, mean power density in the 0.75-4.0 Hz range) of ten rats were recorded continuously during a baseline day, and two recovery days (Recovery 1 and 2) after 24 h of sleep deprivation (SD). The short term changes of TCRT were analysed within episodes of nonrapid eye movement sleep (NREMS), REM sleep (REMS) and waking (W), and at transitions between vigilance states. SWA was analysed within NREMS episodes and at W to NREMS (WN) transitions. TCRT increased during episodes of W and REMS, and decreased during NREMS episodes. These changes were a function of episode duration, and, for W and NREMS, of TCRT at episode onset. In Recovery 1 the increase in TCRT at NREMS to REMS (NR) and NREMS to W (NW) transitions tended to be attenuated. SWA within NREMS episodes was enhanced after SD. Over all experimental days, the increase of SWA and the decrease of TCRT in NREMS episodes were not correlated. It is concluded that during recovery from SD the changes in TCRT at state transitions were little affected. The lack of a relationship between changes in TCRT and SWA indicates that separate mechanisms underlie the regulation of brain temperature and sleep intensity.
Mots-clé
Animals, Arousal/physiology, Body Temperature/physiology, Cerebral Cortex/physiology, Electroencephalography, Male, Rats, Rats, Inbred Strains, Sleep/physiology
Pubmed
Web of science
Création de la notice
24/01/2008 16:31
Dernière modification de la notice
03/03/2018 21:37
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