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Perceptual learning in flavor aversion: Evidence for learned changes in stimulus effectiveness

Blair, C.A.J. and Hall, G. (2003) Perceptual learning in flavor aversion: Evidence for learned changes in stimulus effectiveness. Journal of Experimental Psychology: Animal Behavior Processes, 29 (1). pp. 39-48. ISSN 0097-7403

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Rats were exposed to the compound flavors AX and BX, presented in alternation, and to CX on a separate block of trials. Generalization to BX after aversion conditioning with AX was less than to CX. An equivalent effect was found when the nature of the common element was changed after preexposure but not when the common element was omitted during preexposure, during conditioning and test, or both. Rats conditioned with X alone again showed less aversion to BX than to CX; similarly, rats conditioned with a novel flavor (Y) showed less aversion to BY than to CY. These effects support the proposal that intermixed preexposure to AX and BX enhances the perceptual effectiveness of their unique features, A and B.

Item Type: Article
Institution: The University of York
Academic Units: The University of York > Psychology (York)
Depositing User: York RAE Import
Date Deposited: 03 Aug 2009 13:54
Last Modified: 03 Aug 2009 13:54
Published Version: http://dx.doi.org/10.1037/0097-7403.29.1.39
Status: Published
Publisher: Apa American Psychological Association
Identification Number: 10.1037/0097-7403.29.1.39
URI: http://eprints.whiterose.ac.uk/id/eprint/6647

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