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Learning about the CS during latent inhibition: Preexposure enhances temporal control

Lookup NU author(s): Dr Ben Brilot, Dr Domhnall Jennings

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Abstract

In three experiments rats were given nonreinforced preexposure to an auditory stimulus, after which this stimulus and a second, novel cue were paired with food. Lower rates of conditioned responding were observed to the preexposed stimulus across the three experiments, indicative of latent inhibition. The degree to which animals used these cues to time the occurrence of food delivery was also examined. Paradoxically, the response slopes - indicating the rate of increase in responding over the course of the CS - were greater for the preexposed than for the novel cues, consistent with the suggestion that the preexposed stimulus exerted greater temporal control. Moreover, this was the case irrespective of whether the duration of the cue during preexposure differed from that during conditioning. These results suggest that although CS preexposure retards conditioning, it may enhance timing. The findings are discussed in terms of current models of conditioning and timing.

Publication metadata

Author(s): Bonardi C, Brilot B, Jennings DJ

Publication type: Article

Publication status: Published

Journal: Journal of Experimental Psychology: Animal Learning and Cognition

Year: 2016

Volume: 42

Issue: 2

Pages: 187-199

Print publication date: 01/04/2016

Online publication date: 15/02/2016

Acceptance date: 10/12/2015

Date deposited: 17/02/2016

ISSN (print): 2329-8456

ISSN (electronic): 2329-8464

Publisher: American Psychological Association

URL: http://dx.doi.org/10.1037/xan0000096

DOI: 10.1037/xan0000096

PubMed id: 26881898

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