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Simultaneous Presentation of Similar Stimuli Produces Perceptual Learning in Human Picture Processing

Mundy, Matthew Edward, Honey, Robert Colin and Dwyer, Dominic M. 2007. Simultaneous Presentation of Similar Stimuli Produces Perceptual Learning in Human Picture Processing. Journal of Experimental Psychology: Animal Behavior Processes 33 (2) , pp. 124-138. 10.1037/0097-7403.33.2.124

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Abstract

Human participants received unsupervised exposure to difficult-to-discriminate stimuli (e.g., A and A′), created with a morphing procedure from photographs of faces, before learning a discrimination between them. Experiments 1 and 2 demonstrated that prior exposure enhanced later discrimination and that intermixed exposure (A, A′, A, A′...) resulted in better subsequent discrimination than blocked exposure (B, B, ...B′, B′...). Experiments 3 and 4 showed that simultaneous exposure to 2 similar stimuli facilitated the later acquisition of both a simultaneous and a successive discrimination, and this effect was observed even though simultaneous exposure to 2 stimuli fostered the development of an excitatory association between them (Experiment 5). The findings of Experiments 1 and 2 revealed a perceptual learning effect with pictures of faces, and the findings of Experiments 3-5 are difficult to reconcile with associative analyses of perceptual learning.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Psychology
Subjects: B Philosophy. Psychology. Religion > BF Psychology
Publisher: American Psychological Association
ISSN: 0097-7403
Last Modified: 18 Oct 2017 11:00
URI: http://orca.cf.ac.uk/id/eprint/3373

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