Document Detail

Ontogeny of conditioned heart rate to an olfactory stimulus.
MedLine Citation:
PMID:  3345865     Owner:  NLM     Status:  MEDLINE    
When heart rate is used as the index of conditioning, rat pups younger than 15 days of age do not display an odor-shock association. This constitutes a marked delay relative to the development of a somatomotor conditioned response. The incapacity to display autonomic learning to an olfactory stimulus prior to day 15 is not due to the inability to perceive and to orient to the olfactory stimuli used, nor to the inability to make unconditioned phasic cardiac changes. Rather, the late development of the heart rate conditioned response may indicate that the central neural mechanisms mediating heart rate conditioning are distinct from, and mature later than those mediating 1) heart rate orienting and 2) somatomotor conditioning. Evidence from studies in adult species is used to support these speculations.
C B Sananes; J R Gaddy; B A Campbell
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, Non-P.H.S.; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Developmental psychobiology     Volume:  21     ISSN:  0012-1630     ISO Abbreviation:  Dev Psychobiol     Publication Date:  1988 Mar 
Date Detail:
Created Date:  1988-04-08     Completed Date:  1988-04-08     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  0164074     Medline TA:  Dev Psychobiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  117-33     Citation Subset:  IM    
Department of Psychology, Princeton University, New Jersey 08544.
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MeSH Terms
Aging / psychology*
Association Learning
Choice Behavior
Conditioning, Classical*
Heart Rate*
Rats, Inbred Strains
Grant Support

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

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