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Chimpanzee sleep stages.The electroencephalogram and electro-oculogram of two unrestrained juvenile chimpanzees was monitored for 7 consecutive nights using telemetry methods. Of the sleeping time, 23% was spent in the rapid eye movement of REM type of sleep, whereas 8, 4, 15, and 10% were spent in non-REM stages 1 through 4, respectively. Seven to nine periods of REM sleep occurred per night. The average time from the beginning of one REM period to the beginning of the next was approximately 85 min.
Document ID
19720026408
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Freemon, F. R.
Mcnew, J. J.
Adey, W. R.
(Marquette University Milwaukee, Wis.; California, University, Los Angeles, Calif., United States)
Date Acquired
August 6, 2013
Publication Date
November 1, 1971
Publication Information
Publication: Electroencephalography and Clinical Neurophysiology
Volume: 31
Subject Category
Biosciences
Accession Number
72A10074
Funding Number(s)
CONTRACT_GRANT: PHS-NB-02501
CONTRACT_GRANT: NSR-05-007-158
Distribution Limits
Public
Copyright
Other

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