| Acquisition of superexcitatory properties by an irrelevant background stimulus. | |
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MedLine Citation:
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PMID: 12136704 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Six appetitive conditioning experiments with rats demonstrated that an irrelevant X accompanying a negative patterning discrimination (XA+, XB+, XAB-) acquires extraordinarily high levels of conditioned excitation. Responding to X was similar to that evoked by 2 excitors in combination (Experiment 1) and was greater than responding to a separately reinforced Y (Experiments 2-5). Superexcitatory properties were not acquired by X in the nonpatterning discriminations of Experiments 2-4. Experiment 5 found that A and B, if anything, were weakly excitatory. Making them more strongly excitatory after conditioning did not interfere with retention of the original discrimination (Experiment 6). Results support a counterintuitive prediction of associative theories that, under carefully arranged conditions, irrelevant stimuli may acquire superexcitatory properties. |
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Authors:
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Douglas A Williams; Rick Mehta; Tracy M Poworoznyk; Jane S Orihel; David N George; John M Pearce |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Journal of experimental psychology. Animal behavior processes Volume: 28 ISSN: 0097-7403 ISO Abbreviation: J Exp Psychol Anim Behav Process Publication Date: 2002 Jul |
Date Detail:
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Created Date: 2002-07-24 Completed Date: 2003-01-23 Revised Date: 2006-11-15 |
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: 284-97 Citation Subset: IM |
Affiliation:
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Psychology Department, University of Winnipeg, Winnipeg, Manitoba R3B 2E9, Canada. williams@uwinnipeg.ca |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Appetitive Behavior* Discrimination (Psychology) Learning* Male Models, Biological Noise Perceptual Masking Random Allocation Rats Rats, Sprague-Dawley Reinforcement (Psychology) Retention (Psychology) |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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