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Learning About the CS During Latent Inhibition: Preexposure Enhances Temporal Control

In 3 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 3 experiments, indicative of latent inhibition. The...

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Detalles Bibliográficos
Autores principales: Bonardi, Charlotte, Brilot, Ben, Jennings, Dómhnall J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Psychological Association 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4824136/
https://www.ncbi.nlm.nih.gov/pubmed/26881898
http://dx.doi.org/10.1037/xan0000096
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author Bonardi, Charlotte
Brilot, Ben
Jennings, Dómhnall J.
author_facet Bonardi, Charlotte
Brilot, Ben
Jennings, Dómhnall J.
author_sort Bonardi, Charlotte
collection PubMed
description In 3 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 3 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 conditioned stimulus—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 conditioned stimulus preexposure retards conditioning, it may enhance timing. The findings are discussed in terms of current models of conditioning and timing.
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spelling pubmed-48241362016-04-20 Learning About the CS During Latent Inhibition: Preexposure Enhances Temporal Control Bonardi, Charlotte Brilot, Ben Jennings, Dómhnall J. J Exp Psychol Anim Learn Cogn Research Reports In 3 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 3 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 conditioned stimulus—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 conditioned stimulus preexposure retards conditioning, it may enhance timing. The findings are discussed in terms of current models of conditioning and timing. American Psychological Association 2016-02-15 2016-04 /pmc/articles/PMC4824136/ /pubmed/26881898 http://dx.doi.org/10.1037/xan0000096 Text en © 2016 The Author(s) http://creativecommons.org/licenses/by/3.0/ This article has been published under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Copyright for this article is retained by the author(s). Author(s) grant(s) the American Psychological Association the exclusive right to publish the article and identify itself as the original publisher.
spellingShingle Research Reports
Bonardi, Charlotte
Brilot, Ben
Jennings, Dómhnall J.
Learning About the CS During Latent Inhibition: Preexposure Enhances Temporal Control
title Learning About the CS During Latent Inhibition: Preexposure Enhances Temporal Control
title_full Learning About the CS During Latent Inhibition: Preexposure Enhances Temporal Control
title_fullStr Learning About the CS During Latent Inhibition: Preexposure Enhances Temporal Control
title_full_unstemmed Learning About the CS During Latent Inhibition: Preexposure Enhances Temporal Control
title_short Learning About the CS During Latent Inhibition: Preexposure Enhances Temporal Control
title_sort learning about the cs during latent inhibition: preexposure enhances temporal control
topic Research Reports
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4824136/
https://www.ncbi.nlm.nih.gov/pubmed/26881898
http://dx.doi.org/10.1037/xan0000096
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