Document Detail

Enhanced response acceleration or suppression produced by response-independent food presentations in rats with septal lesions.
MedLine Citation:
PMID:  838909     Owner:  NLM     Status:  MEDLINE    
In two separate experiments, the response rates of rats with septal lesions were compared with those of control rats when response-independent food was presented while subjects were responding on a differential-reinforcement-of-low-rate schedule of reinforcement (Experiment 1) or according to a conjunctive differential-reinforcement-of-high-rate, fixed-ratio schedule (Experiment 2). Free-food deliveries resulted in acceleration of responding of subjects working on the low-rate schedule and in suppression of responding of those animals working on the high-rate schedule. Both of these effects were localized to a brief time period immediately following the free-food deliveries, and baseline rates of responding were not altered. The acceleration and suppression of responding that occurred on the respective schedules were greatly enhanced in rats with septal lesions. This finding supports the suggestion that these animals are hyperreactive to the reinforcing and/or eliciting properties of discrete stimulus events.
V DeNoble; M Caplan
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Journal of comparative and physiological psychology     Volume:  91     ISSN:  0021-9940     ISO Abbreviation:  J Comp Physiol Psychol     Publication Date:  1977 Feb 
Date Detail:
Created Date:  1977-04-25     Completed Date:  1977-04-25     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0414612     Medline TA:  J Comp Physiol Psychol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  107-19     Citation Subset:  IM    
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MeSH Terms
Arousal / physiology
Behavior, Animal / physiology*
Conditioning, Operant / physiology*
Reinforcement Schedule*
Septum Pellucidum / physiology*
Time Factors

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

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