| Effect of reward probability on spatial and temporal variation. | |
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MedLine Citation:
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PMID: 20141319 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Gharib, Derby, and Roberts (2001) proposed that reducing reward expectation increases variation of response form. We tested this rule in a new situation and asked if it also applied to variation of response location and timing. In 2 discrete-trial experiments, pigeons pecked colored circles for food. The circles were of 6 possible colors, each associated with a different probability of reward. Reducing reward expectation did not affect peck duration (a measure of form) but did increase horizontal variation of peck location and interpeck-interval variation. The effect of reward probability on the standard deviation of interpeck intervals was clearer (larger t value) than its effect on mean interpeck interval. Two datasets from rats had similar interresponse-interval effects. |
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Authors:
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W David Stahlman; Seth Roberts; Aaron P Blaisdell |
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Publication Detail:
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Type: Journal Article; Research Support, N.I.H., Extramural |
Journal Detail:
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Title: Journal of experimental psychology. Animal behavior processes Volume: 36 ISSN: 1939-2184 ISO Abbreviation: J Exp Psychol Anim Behav Process Publication Date: 2010 Jan |
Date Detail:
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Created Date: 2010-02-09 Completed Date: 2010-04-27 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7504289 Medline TA: J Exp Psychol Anim Behav Process Country: United States |
Other Details:
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Languages: eng Pagination: 77-91 Citation Subset: IM |
Affiliation:
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Department of Psychology, University of California Los Angeles, Los Angeles, CA 90095-1563, USA. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Behavior, Animal / physiology Columbidae / physiology Conditioning, Operant / physiology* Male Probability* Reinforcement Schedule Reward* Space Perception / physiology* Time Perception / physiology* |
| Grant Support | |
ID/Acronym/Agency:
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MH066855/MH/NIMH NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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