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Dissimilarity of slow-wave activity enhancement by torpor and sleep deprivation in a hibernator.

Content Provider	Semantic Scholar
Author	Strijkstra, Arjen M. Daan, Serge
Copyright Year	1998
Abstract	Sleep regulation processes have been hypothesized to be involved in function and timing of arousal episodes in hibernating ground squirrels. We investigated the importance of sleep regulation during arousal episodes by sleep deprivation experiments. After sleep deprivation of 4, 12, and 24 h, starting 4 h after onset of euthermy, a duration-dependent enhancement of slow-wave activity (SWA) of the cortical electroencephalogram during non-rapid eye movement sleep was found, as expected for normal sleep regulation. When sleep deprivation was applied during the initial phase of the arousal episode, in which effects of prior torpor were present in undisturbed recordings, no subsequent recurrence of SWA was found. In addition, prior torpor induced a reduction in the spectral activity of the sigma frequency range (7-14 Hz), which was not observed after sleep deprivation. The effects of torpor and sleep deprivation on subsequent SWA appear qualitatively different. This indicates that effects of deep torpor on sleep are dissimilar to normal sleep regulation.
Starting Page	R1110
Ending Page	R1117
Page Count	1
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://www.rug.nl/research/portal/files/6656087/1998AmJPhysiolRICPStrijkstraX.pdf
Alternate Webpage(s)	http://ajpregu.physiology.org/content/ajpregu/275/4/R1110.full.pdf
PubMed reference number	29598347v1
Alternate Webpage(s)	https://doi.org/10.1152/ajpregu.1998.275.4.R1110
DOI	10.1152/ajpregu.1998.275.4.r1110
Journal	American journal of physiology. Regulatory, integrative and comparative physiology
Volume Number	275
Issue Number	4
Language	English
Access Restriction	Open
Subject Keyword	Arousal Electroencephalography Eye Movements Sleep Apnea Syndromes Sleep, REM Squirrels regulation of sleep
Content Type	Text
Resource Type	Article

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