| Changes in stimulus salience as a result of stimulus preexposure: evidence from aversive and appetitive testing procedures. | |
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MedLine Citation:
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PMID: 12882377 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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In two experiments, rats received preexposure to three compound flavor stimuli, AX, BX, and CX, where X represents a saline solution. AX and BX were presented in alternation; CX, on a separate block of trials. The value of X was then modified, being devalued by aversive conditioning in Experiment 1, and rendered valuable by the induction of a state of salt need in Experiment 2. When given a choice between BX and CX, the rats consumed more of BX than of CX in Experiment 1, and more of CX than of BX in Experiment 2, suggesting that B and C differed in their ability to modulate the response governed by the X element. It was suggested that blocked preexposure to CX reduces the salience of the C stimulus but that the salience of B is maintained by preexposure in which BX is alternated with AX. The implications of this result for the phenomenon of perceptual learning are discussed. |
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Authors:
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C A J Blair; Geoffrey Hall |
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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: Learning & behavior Volume: 31 ISSN: 1543-4494 ISO Abbreviation: Learn Behav Publication Date: 2003 May |
Date Detail:
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Created Date: 2003-07-28 Completed Date: 2003-09-10 Revised Date: 2011-01-24 |
Medline Journal Info:
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Nlm Unique ID: 101155056 Medline TA: Learn Behav Country: United States |
Other Details:
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Languages: eng Pagination: 185-91 Citation Subset: IM |
Affiliation:
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Department of Psychology, University of York, York, England. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Appetitive Behavior* Attention Avoidance Learning* Generalization, Stimulus Inhibition (Psychology) Male Perceptual Distortion* Practice (Psychology)* Rats Rats, Inbred Strains Reinforcement (Psychology) Taste Threshold* Time Factors |
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