| Concurrent schedules of reinforcement: effects of gradual and abrupt increases in changeover delay. | |
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MedLine Citation:
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PMID: 16811535 Owner: NLM Status: PubMed-not-MEDLINE |
Abstract/OtherAbstract:
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Pigeons' pecks were maintained on concurrent variable-interval 1-min variable-interval 3-min schedules of reinforcement, with a changeover delay of 2 sec. When changeover delay was increased successively to 5.0, 7.5, and 12.5 sec (Exp. I) the actual relative rate of reinforcement for the variable-interval 3-min key decreased progressively for two birds, abruptly for two other birds, and the subjects devoted proportionately less of their time and responding to that key. However, the relative performance measures (relative time and relative responding) approximated the actual relative rate of reinforcement, with a maximum discrepancy of 11%, over all changeover delay values investigated. Experiment II attempted to lengthen response-run durations on the variable-interval 3-min key so that they were long enough to meet the changeover delay requirement at each new changeover delay value, by progressively increasing the changeover delay by 0.5-sec increments. With this procedure the actual relative rate of reinforcement approximated more closely the scheduled relative rate as changeover delay increased. As in Exp. I, relative performance measures approximated the actual relative reinforcement rate (maximum discrepancy 17%). |
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Authors:
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T S Allison; K E Lloyd |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of the experimental analysis of behavior Volume: 16 ISSN: 0022-5002 ISO Abbreviation: J Exp Anal Behav Publication Date: 1971 Jul |
Date Detail:
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Created Date: 2010-06-29 Completed Date: 2010-06-29 Revised Date: 2010-09-14 |
Medline Journal Info:
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Nlm Unique ID: 0203727 Medline TA: J Exp Anal Behav Country: United States |
Other Details:
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Languages: eng Pagination: 67-73 Citation Subset: - |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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