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Behav Brain Res. 2013 Jan 1;236(1):48-55. doi: 10.1016/j.bbr.2012.08.030. Epub 2012 Aug 25.

Within-event learning in rats with lesions of the basolateral amygdala.

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1
University of Leeds, Leeds, LS2 9JT, UK. p.blundell@leeds.ac.uk

Abstract

Rats with neurotoxic lesions of the basolateral amygdala were trained in procedures designed to assess the formation of within-event, taste-odor associations. In Experiments 1 and 2 the animals were given initial exposure to a taste-odor compound; the value of the taste was then modified, and the consequent change in responding to the odor was taken to indicate that an odor-taste association had been formed. In Experiment 1 the value of the taste (saline) was enhanced by means of salt-depletion procedure; in Experiment 2 the taste was devalued by aversive conditioning. In neither procedure did lesioned animals differ from sham-operated controls. Experiment 3 confirmed, however, that taste-potentiation of odor aversion learning (an effect thought to depend on the formation of a taste-odor association) is abolished by the lesion. Implications for the view that the amygdala is necessary for sensory-sensory associations between events in different modalities are considered.

PMID:
22944512
DOI:
10.1016/j.bbr.2012.08.030
[Indexed for MEDLINE]
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