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Suppression to visual, auditory, and gustatory stimuli habituates normally in rats with excitotoxic lesions of the perirhinal cortex

Robinson, Jasper, Sanderson, David J., Aggleton, John Patrick and Jenkins, Trisha A. 2009. Suppression to visual, auditory, and gustatory stimuli habituates normally in rats with excitotoxic lesions of the perirhinal cortex. Behavioral Neuroscience 123 (6) , pp. 1238-1250. 10.1037/a0017444

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Abstract

In 3 habituation experiments, rats with excitotoxic lesions of the perirhinal cortex were found to be indistinguishable from control rats. Two of the habituation experiments examined the habituation of suppression of responding on an appetitive, instrumental baseline. One of those experiments used stimuli selected from the visual modality (lights), the other used auditory stimuli. The third experiment examined habituation of suppression of novel-flavored water consumption. In contrast to the null results on the habituation experiments, the perirhinal lesions disrupted transfer performance on a configural, visual discrimination, indicating the behavioral effectiveness of the lesions. Implications for comparator theories of habituation are considered, and it is concluded that others’ demonstrations of the sensitivity of object recognition to perirhinal cortex damage is not the result of standard habituation.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Psychology
Medicine
Neuroscience and Mental Health Research Institute (NMHRI)
Subjects: R Medicine > RC Internal medicine > RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry
Publisher: American Psychological Association
ISSN: 0735-7044
Last Modified: 04 Jun 2017 02:42
URI: http://orca.cf.ac.uk/id/eprint/11351

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