| Interactions of numerical and temporal stimulus characteristics on the control of response location by brief flashes of light. | |
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MedLine Citation:
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PMID: 21267693 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Pigeons pecked on three keys, responses to one of which could be reinforced after 3 flashes of the houselight, to a second key after 6, and to a third key after 12. The flashes were arranged according to variable-interval schedules. Response allocation among the keys was a function of the number of flashes. When flashes were omitted, transitions occurred very late. Increasing flash duration produced a leftward shift in the transitions along a number axis. Increasing reinforcement probability produced a leftward shift, and decreasing reinforcement probability produced a rightward shift. Intermixing different flash rates within sessions separated allocations: Faster flash rates shifted the functions sooner in real time, but later in terms of flash count, and conversely for slower flash rates. A model of control by fading memories of number and time was proposed. |
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Authors:
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J Gregor Fetterman; P Richard Killeen |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-1-26 |
Journal Detail:
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Title: Learning & behavior Volume: - ISSN: 1543-4494 ISO Abbreviation: - Publication Date: 2011 Jan |
Date Detail:
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Created Date: 2011-1-26 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101155056 Medline TA: Learn Behav Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Department of Psychology, Indiana University Purdue University, Indianapolis, 402 N. Blackford St, Indianapolis, IN, 46202, USA, gfetter@iupui.edu. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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