Document Detail

Colliding of activity onset and offset: evidence for multiple circadian oscillators.
MedLine Citation:
PMID:  3761223     Owner:  NLM     Status:  MEDLINE    
When hamsters, Mesocricetus auratus, are kept in dim light, wheel running at the onset and the offset of their active phase have different circadian periods. As a result, the active phase expands and eventually the two activity components collide. There is then a temporary explosion of activity at a time that was previously in the rest period. This is followed by disorganization of the rhythm or by phase jumps. Such phase jumps probably stem from the interaction of two oscillators with different natural periods rather than from threshold changes for the expression of activity.
N Mrosovsky; J D Hallonquist
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of comparative physiology. A, Sensory, neural, and behavioral physiology     Volume:  159     ISSN:  -     ISO Abbreviation:  J. Comp. Physiol. A     Publication Date:  1986 Aug 
Date Detail:
Created Date:  1986-11-04     Completed Date:  1986-11-04     Revised Date:  2014-07-21    
Medline Journal Info:
Nlm Unique ID:  8413199     Medline TA:  J Comp Physiol A     Country:  GERMANY, WEST    
Other Details:
Languages:  eng     Pagination:  187-90     Citation Subset:  IM    
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MeSH Terms
Circadian Rhythm*
Motor Activity*
Testis / anatomy & histology

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