Anxiolytic effects of cytotoxic hippocampal lesions in rats.

Rats with cytotoxic lesions of the hippocampus were given 3 anxiety tests: social interaction with a novel rat, the elevated zero-maze (a modification of the plus-maze), and hyponeophagia (eating familiar and novel foods in a novel place). Marked anxiolytic effects were seen in the social interactio...

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Main Authors: Deacon, R, Bannerman, D, Rawlins, J
Format: Journal article
Language:English
Published: 2002
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author Deacon, R
Bannerman, D
Rawlins, J
author_facet Deacon, R
Bannerman, D
Rawlins, J
author_sort Deacon, R
collection OXFORD
description Rats with cytotoxic lesions of the hippocampus were given 3 anxiety tests: social interaction with a novel rat, the elevated zero-maze (a modification of the plus-maze), and hyponeophagia (eating familiar and novel foods in a novel place). Marked anxiolytic effects were seen in the social interaction and hyponeophagia tests, but not on the zero-maze. These results confirm and extend previous experiments that used traditional lesion techniques. The zero-maze result was consistent with other experiments using the plus-maze, in which intrahippocampal administrations of pharmacological agents were not anxiolytic, although variability in ethological tests may also be a factor. As the hyponeophagia test used an elevated apparatus, as in the zero- and plus-mazes, the lack of a lesion effect in the zero-maze was unlikely to have been due to an inability to relieve height-induced anxiety.
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spelling oxford-uuid:608bb800-9f8d-426b-92d4-6ea33492d6142022-03-26T17:54:03ZAnxiolytic effects of cytotoxic hippocampal lesions in rats.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:608bb800-9f8d-426b-92d4-6ea33492d614EnglishSymplectic Elements at Oxford2002Deacon, RBannerman, DRawlins, JRats with cytotoxic lesions of the hippocampus were given 3 anxiety tests: social interaction with a novel rat, the elevated zero-maze (a modification of the plus-maze), and hyponeophagia (eating familiar and novel foods in a novel place). Marked anxiolytic effects were seen in the social interaction and hyponeophagia tests, but not on the zero-maze. These results confirm and extend previous experiments that used traditional lesion techniques. The zero-maze result was consistent with other experiments using the plus-maze, in which intrahippocampal administrations of pharmacological agents were not anxiolytic, although variability in ethological tests may also be a factor. As the hyponeophagia test used an elevated apparatus, as in the zero- and plus-mazes, the lack of a lesion effect in the zero-maze was unlikely to have been due to an inability to relieve height-induced anxiety.
spellingShingle Deacon, R
Bannerman, D
Rawlins, J
Anxiolytic effects of cytotoxic hippocampal lesions in rats.
title Anxiolytic effects of cytotoxic hippocampal lesions in rats.
title_full Anxiolytic effects of cytotoxic hippocampal lesions in rats.
title_fullStr Anxiolytic effects of cytotoxic hippocampal lesions in rats.
title_full_unstemmed Anxiolytic effects of cytotoxic hippocampal lesions in rats.
title_short Anxiolytic effects of cytotoxic hippocampal lesions in rats.
title_sort anxiolytic effects of cytotoxic hippocampal lesions in rats
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