Document Detail

Dynamical concurrent schedules.
MedLine Citation:
PMID:  12696738     Owner:  NLM     Status:  MEDLINE    
Previous work on the matching law has predominantly focused on the molar effects of the contingency by examining only one reinforcer ratio for extended periods. Responses are distributed as a function of reinforcer ratios under these static conditions. But the outcome under a dynamic condition in which reinforcer ratios change continuously has not been determined. The present study implemented concurrent variable-interval schedules that changed continuously across a fixed 5-min trial. The schedules were reciprocally interlocked. The variable interval for one key changed continuously from a variable-interval 15-s to a variable-interval 480-s, while the schedule for the other key changed from a variable-interval 480-s to a variable-interval 15-s. This dynamical concurrent schedule shifted behavior in the direction of matching response ratios to reinforcer ratios. Sensitivities derived from the generalized matching law were approximately 0.62, the mean absolute bias was approximately 0.11, and r2s were approximately 0.86. It was concluded that choice behavior can come to adapt to reinforcer ratios that change continuously over a relatively short time and that this change does not require extensive experience with a fixed reinforcer ratio. The results were seen as supportive of the view that all behavior constitutes choice.
William L Palya; Robert W Allan
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of the experimental analysis of behavior     Volume:  79     ISSN:  0022-5002     ISO Abbreviation:  J Exp Anal Behav     Publication Date:  2003 Jan 
Date Detail:
Created Date:  2003-04-16     Completed Date:  2003-08-26     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:  1-20     Citation Subset:  IM    
Department of Psychology, Jacksonville State University, Alabama 36265, USA.
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MeSH Terms
Appetitive Behavior*
Choice Behavior*
Color Perception*
Discrimination Learning
Psychomotor Performance
Reaction Time
Reinforcement Schedule*
Erratum In:
J Exp Anal Behav. 2003 Mar;79(2):174

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