Document Detail

Self-control and impulsiveness with asynchronous presentation of reinforcement schedules.
MedLine Citation:
PMID:  12090943     Owner:  NLM     Status:  Publisher    
IN DISCRETE TRIALS, PIGEONS WERE PRESENTED WITH TWO ALTERNATIVES: to wait for a larger reinforcer, or to respond and obtain a smaller reinforcer immediately. The choice of the former was defined as self-control, and the choice of the latter as impulsiveness. The stimulus that set the opportunity for an impulsive choice was presented after a set interval from the onset of the stimulus that signaled the waiting period. That interval increased or decreased from session to session so that the opportunity for an impulsive choice became available either more removed from or closer in time to the presentation of the larger reinforcer. In three separate conditions, the larger reinforcer was delivered according to either a fixed interval (FI) schedule, a fixed time (FT) schedule, or a differential reinforcement of other behavior (DRO) schedule. The results showed that impulsive choices increased as the opportunity for such a choice was more distant in time from presentation of the larger reinforcer. Although the schedule of the larger reinforcer affected the rate of response in the waiting period, the responses themselves had no effect on choice unless the responses postponed presentation of the larger reinforcer.
Taku Ishii; Takayuki Sakagami
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Publication Detail:
Journal Detail:
Title:  Behavioural processes     Volume:  59     ISSN:  1872-8308     ISO Abbreviation:  Behav. Processes     Publication Date:  2002 Jul 
Date Detail:
Created Date:  2002-Jul-1     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7703854     Medline TA:  Behav Processes     Country:  -    
Other Details:
Languages:  ENG     Pagination:  25-35     Citation Subset:  -    
Department of Psychology, Keio University, 2-15-45 Mita, Minato-ku, 108-8345, Tokyo, Japan
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