Document Detail

Relations between muricide, circadian rhythm and consummatory behavior.
MedLine Citation:
PMID:  6682237     Owner:  NLM     Status:  MEDLINE    
Three forms of behavior--muricide, eating, and drinking--have been studied at six photic periods during a 12/12 hr light/dark circadian cycle to which the subjects have been habituated. One hundred and eight rats served as subjects, 18 per photic period. The frequency of muricide was recorded for each period and subsequent food and water intakes were measured during a 1 hr test period. Results show a significantly higher frequency of muricide during the dark than during periods of light. Food intake covaried significantly with the incidence of muricide rs = 0.89, p less than 0.05), while no such relationship was found between muricide and water intake (rs = 0.17, p less than 0.05). The findings are consistent with reports of circadian changes in other rodent behaviors, including rhythmicity in home-cage and in shock-induced aggression. Covariation of muricide and eating does not establish a causal relation between the two. Three models of physiological mechanisms which might provide substrates for the covariance are discussed.
J W Russell; G Singer
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Physiology & behavior     Volume:  30     ISSN:  0031-9384     ISO Abbreviation:  Physiol. Behav.     Publication Date:  1983 Jan 
Date Detail:
Created Date:  1983-05-27     Completed Date:  1983-05-27     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0151504     Medline TA:  Physiol Behav     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  23-7     Citation Subset:  IM    
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MeSH Terms
Aggression / psychology*
Circadian Rhythm*
Consummatory Behavior*
Rats, Inbred Strains
Reaction Time

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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