Document Detail

Ultrasonic vocalizations and aggressive behavior in male rats.
MedLine Citation:
PMID:  3823167     Owner:  NLM     Status:  MEDLINE    
The aim of the present study was to know whether 22-28-kHz vocalizations have any communicatory role in the regulation of aggressive behavior in male rats of the Wistar strain. In pairs of intact rats 22-28-kHz vocalizations showed a positive correlation with the extent of aggressive behavior. The pattern of aggressive behavior during ultrasonic vocalizations was different from that just before and just after the vocalizations. However, surgically deafened rats were less active in aggressive behavior and more active in ambulatory activity in the open field than the controls. Muted rats were not different from the controls in both aggressive behavior and ambulatory activity. The present result that the deprivation of ultrasonic signals failed to increase aggressive behavior does not support the classical hypothesis that ultrasonic vocalizations inhibit the initiation of aggressive behavior. It is concluded that ultrasounds emitted during aggressive encounters may have little communicative value in male rats.
H Takeuchi; S Kawashima
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Physiology & behavior     Volume:  38     ISSN:  0031-9384     ISO Abbreviation:  Physiol. Behav.     Publication Date:  1986 Oct 
Date Detail:
Created Date:  1987-03-30     Completed Date:  1987-03-30     Revised Date:  2003-11-14    
Medline Journal Info:
Nlm Unique ID:  0151504     Medline TA:  Physiol Behav     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  545-50     Citation Subset:  IM    
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MeSH Terms
Motor Activity
Rats, Inbred Strains
Vocalization, Animal*

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