Document Detail

Arousal, changeover responses, and preference in concurrent schedules.
MedLine Citation:
PMID:  14964707     Owner:  NLM     Status:  MEDLINE    
Pigeons were trained on multiple schedules that provided concurrent reinforcement in each of two components. In Experiment 1, one component consisted of a variable-interval (VI) 40-s schedule presented with a VI 20-s schedule, and the other a VI 40-s schedule presented with a VI 80-s schedule. After extended training, probe tests measured preference between the stimuli associated with the two 40-s schedules. Probe tests replicated the results of Belke (1992) that showed preference for the 40-s schedule that had been paired with the 80-s schedule. In a second condition, the overall reinforcer rate provided by the two components was equated by adding a signaled VI schedule to the component with the lower reinforcer rate. Probe results were unchanged. In Experiment 2, pigeons were trained on alternating concurrent VI 30-s VI 60-s schedules. One schedule provided 2-s access to food and the other provided 6-s access. The larger reinforcer magnitude produced higher response rates and was preferred on probe trials. Rate of changeover responding, however, did not differ as a function of reinforcer magnitude. The present results demonstrate that preference on probe trials is not a simple reflection of the pattern of changeover behavior established during training.
Margaret A McDevitt; Ben A Williams
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of the experimental analysis of behavior     Volume:  80     ISSN:  0022-5002     ISO Abbreviation:  J Exp Anal Behav     Publication Date:  2003 Nov 
Date Detail:
Created Date:  2004-02-13     Completed Date:  2004-08-11     Revised Date:  2010-09-21    
Medline Journal Info:
Nlm Unique ID:  0203727     Medline TA:  J Exp Anal Behav     Country:  United States    
Other Details:
Languages:  eng     Pagination:  261-72     Citation Subset:  IM    
Department of Psychology, McDaniel College, Westminster, Maryland 21157, USA.
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MeSH Terms
Appetitive Behavior*
Choice Behavior*
Psychomotor Performance
Reinforcement Schedule*
Time Perception*
Transfer (Psychology)

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