Document Detail

Effects of preshift small magnitude of reward received during goalbox placements on the negative contrast effect.
MedLine Citation:
PMID:  15154202     Owner:  NLM     Status:  MEDLINE    
During preshift, one experimental group of rats was given a large magnitude of food reward following a traversal of a straight alley and during a goalbox placement, while the other experimental group was given a small reward during goalbox placement and a large reward following a run. During postshift, all experimental groups were given a small reward of food following a traversal down the runway and during a goalbox placement. A control group was maintained on small reward during placements and following a traversal throughout the study. Only the group who received preshift large reward during placement and following a runway response ran slower to small reward during postshift than the control group maintained on small reward (negative contrast effect).
Richard S Calef; Michael C Choban; Katherine R Glenney; Ruth A Calef; Errika M Mace; Theresa D Cummings
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Psychological reports     Volume:  94     ISSN:  0033-2941     ISO Abbreviation:  Psychol Rep     Publication Date:  2004 Apr 
Date Detail:
Created Date:  2004-05-24     Completed Date:  2004-06-23     Revised Date:  2014-03-25    
Medline Journal Info:
Nlm Unique ID:  0376475     Medline TA:  Psychol Rep     Country:  United States    
Other Details:
Languages:  eng     Pagination:  683-6     Citation Subset:  IM    
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MeSH Terms
Behavior, Animal / physiology
Conditioning, Operant / physiology*
Feeding Behavior / physiology
Motor Activity / physiology*
Rats, Sprague-Dawley
Reinforcement Schedule*

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