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Preexposure along a continuum: Differentiation and association.

George, David N.; Haddon, Josephine E.


Josephine E. Haddon


In five experiments, we assessed the effects of pre-exposure to simple auditory stimuli on subsequent conditioning and discrimination learning. Experiment 1 showed that pre-exposure to a single stimulus retarded acquisition of conditioned responding to that stimulus. The same pre-exposure regimen facilitated the subsequent acquisition of a discrimination between two stimuli that flanked the pre-exposed stimulus along the frequency dimension. Experiment 2 replicated this midpoint pre-exposure effect on discrimination learning but also found that alternating pre-exposure to the discriminative stimuli retarded discrimination learning. Experiments 3 to 5 explored the causes of these effects. These experiments are the first to examine perceptual learning in animals using simple auditory stimuli and their results suggest that in at least some circumstances alternating pre-exposure to auditory stimuli results in an increase in generalization between them.


George, D. N., & Haddon, J. E. (2021). Preexposure along a continuum: Differentiation and association. Journal of Experimental Psychology: Animal Learning and Cognition, 47(1), 48-62.

Journal Article Type Article
Acceptance Date Sep 4, 2020
Publication Date 2021-01
Deposit Date Dec 1, 2020
Publicly Available Date Jan 19, 2021
Journal Journal of Experimental Psychology: Animal Learning and Cognition
Print ISSN 2329-8464
Electronic ISSN 2329-8456
Publisher American Psychological Association
Peer Reviewed Peer Reviewed
Volume 47
Issue 1
Pages 48-62
Keywords Perceptual learning; Discrimination; Generalization; Latent inhibition; Auditory
Public URL
Publisher URL


Article (866 Kb)

Copyright Statement
©American Psychological Association, 2020

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