Document Detail

Is induction produced by upcoming food-pellet reinforcement the outcome of an increase in overall activity or in operant responding?
MedLine Citation:
PMID:  16475671     Owner:  NLM     Status:  MEDLINE    
Researchers have demonstrated that rats reliably increase their rates of pressing a lever for 1% liquid-sucrose reinforcement if they will soon have the opportunity to press a lever for food-pellet reinforcement. In the present experiments, the authors investigated if this increase in response rates occurred because the upcoming food pellets produced an increase in all behaviors (i.e., general arousal) or an increase in only the specific operant response (i.e., lever pressing). The results of Experiments 1 and 2 showed that the appearance of induction in rats' lever pressing for 1% sucrose reinforcement when food-pellet reinforcement was upcoming did not coincide with increases in the frequency of running in a wheel or making a nonreinforced nose-poke response. On the other hand, in Experiment 3, the authors found the appearance of induction coincided with increase nonreinforced lever presses on an adjacent lever. These results shed doubt on the idea that induction is a result of a general increase in all activity, and suggest instead that the increase in responding that occurs during induction is limited to the operant response.
Jeffrey N Weatherly; Emily I L Arthur; Jeri T Nurnberger
Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  The Journal of general psychology     Volume:  133     ISSN:  0022-1309     ISO Abbreviation:  J Gen Psychol     Publication Date:  2006 Jan 
Date Detail:
Created Date:  2006-02-14     Completed Date:  2006-04-25     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  2985111R     Medline TA:  J Gen Psychol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  97-111     Citation Subset:  IM    
Department of Psychology, University of North Dakota, Grand Forks 58202-8380, USA.
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MeSH Terms
Behavior, Animal*
Conditioning, Operant*
Motor Activity
Rats, Sprague-Dawley
Reinforcement (Psychology)*
Reinforcement Schedule

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