Document Detail

Preference reversals with food and water reinforcers in rats.
MedLine Citation:
PMID:  12822689     Owner:  NLM     Status:  MEDLINE    
Rats were given a choice between a smaller, immediately available reward and a larger reward available after a delay. In one phase, the reward was food and in another phase, the reward was water. Constant delays were added between the choice presentation and the delivery of the reward alternatives. As the time between choice and reward delivery increased from 0 to 25 s, all rats (except one in the water phase) reversed their preference from the smaller, sooner alternative to the larger, later alternative. These findings extend the generality of the preference-reversal animal model to qualitatively different reinforcers. Furthermore, the presence of both impulsive and self-control choices within the same animal is consistent with the view that self-control may be understood as choice behavior, and that species differences in self-control may be differences in degree, not kind.
Leonard Green; Sara J Estle
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Journal of the experimental analysis of behavior     Volume:  79     ISSN:  0022-5002     ISO Abbreviation:  J Exp Anal Behav     Publication Date:  2003 Mar 
Date Detail:
Created Date:  2003-06-25     Completed Date:  2003-11-04     Revised Date:  2010-09-14    
Medline Journal Info:
Nlm Unique ID:  0203727     Medline TA:  J Exp Anal Behav     Country:  United States    
Other Details:
Languages:  eng     Pagination:  233-42     Citation Subset:  IM    
Department of Psychology, Washington University, St. Louis, Missouri 63130, USA.
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MeSH Terms
Choice Behavior
Drinking Behavior
Feeding Behavior*
Rats, Sprague-Dawley
Reinforcement (Psychology)*
Grant Support
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