Skip to main content

Research Repository

Advanced Search

Disentangling the effects of attentional weighting and associative mediation in perceptual learning reveals no evidence for associative mediation.

George, David N.; Oltean, Bianca P

Authors

Bianca P Oltean



Abstract

Learning to categorize perceptually similar stimuli can result in people becoming more sensitive to differences along perceptual dimensions that are relevant to category membership and/or less sensitive to equivalent differences along irrelevant perceptual dimensions. These effects of acquired distinctiveness and acquired equivalence may be caused by changes in the representations of stimuli which come about through adjustment to the relative attentional weighting of perceptual features or dimensions. Alternatively, the development of associations between individual stimuli and category labels could result in those labels being incorporated into the stimulus representation, hence increasing or decreasing generalization between the stimuli. For many categorization tasks, the expected effects of attentional weighting and associative mediation on stimulus similarity are the same. We report three experiments using complex category structures, which allowed us to assess the independent influence of each mechanism on stimulus similarity. The results suggest that, in these categorization tasks, attentional weighting affects perceptual similarity but associative mediation does not.

Citation

George, D. N., & Oltean, B. P. (2020). Disentangling the effects of attentional weighting and associative mediation in perceptual learning reveals no evidence for associative mediation. Journal of Experimental Psychology: Learning, Memory, and Cognition, 46(7), 1207–1225. https://doi.org/10.1037/xlm0000773

Journal Article Type Article
Acceptance Date Aug 28, 2019
Online Publication Date Oct 17, 2019
Publication Date 2020
Deposit Date Sep 3, 2019
Publicly Available Date Oct 18, 2020
Journal Journal of Experimental Psychology: Learning, Memory, and Cognition
Print ISSN 0278-7393
Electronic ISSN 0278-7393
Publisher American Psychological Association
Peer Reviewed Peer Reviewed
Volume 46
Issue 7
Pages 1207–1225
DOI https://doi.org/10.1037/xlm0000773
Keywords Attentional weighting; Associative mediation; Category learning; Perceptual learning; Similarity
Public URL https://hull-repository.worktribe.com/output/2597168

Files

Article (1.3 Mb)
PDF

Copyright Statement
© 2019, American Psychological Association. This paper is not the copy of record and may not exactly replicate the final, authoritative version of the article. Please do not copy or cite without authors' permission.





You might also like



Downloadable Citations