Selective cytotoxic lesions of the retrohippocampal region produce a mild deficit in social recognition memory.

Although a number of studies have implicated the hippocampal formation in social recognition memory in the rat, a recent study in this laboratory has demonstrated that selective cytotoxic lesions, confined to the hippocampus proper (encompassing the four CA subfields and the dentate gyrus), are with...

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Main Authors: Bannerman, D, Lemaire, M, Yee, B, Iversen, S, Oswald, C, Good, M, Rawlins, J
Format: Journal article
Language:English
Published: 2002
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author Bannerman, D
Lemaire, M
Yee, B
Iversen, S
Oswald, C
Good, M
Rawlins, J
author_facet Bannerman, D
Lemaire, M
Yee, B
Iversen, S
Oswald, C
Good, M
Rawlins, J
author_sort Bannerman, D
collection OXFORD
description Although a number of studies have implicated the hippocampal formation in social recognition memory in the rat, a recent study in this laboratory has demonstrated that selective cytotoxic lesions, confined to the hippocampus proper (encompassing the four CA subfields and the dentate gyrus), are without effect on this behaviour. This finding suggests that the hippocampus proper does not subserve social recognition memory in the rat, but does not preclude the possibility that other areas of the hippocampal formation, such as the entorhinal cortex or subiculum, could support this form of learning. The present study addressed this issue by examining the effects of selective cytotoxic retrohippocampal (RHR) lesions (including both the entorhinal cortex and subiculum) on social recognition memory in the rat. RHR lesions produced a mild social recognition memory impairment, although lesioned animals still displayed a reduction in investigation time between the first and second exposure to the juvenile. This result is consistent with other studies which have implicated the retrohippocampal or parahippocampal area in olfactory recognition memory processes. It also suggests, however, that other areas, out with the retrohippocampal region, are also likely to play an important role in social recognition memory.
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spelling oxford-uuid:44fa55a6-ee32-4166-ba3b-a377d31c1ba32022-03-26T15:04:58ZSelective cytotoxic lesions of the retrohippocampal region produce a mild deficit in social recognition memory.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:44fa55a6-ee32-4166-ba3b-a377d31c1ba3EnglishSymplectic Elements at Oxford2002Bannerman, DLemaire, MYee, BIversen, SOswald, CGood, MRawlins, JAlthough a number of studies have implicated the hippocampal formation in social recognition memory in the rat, a recent study in this laboratory has demonstrated that selective cytotoxic lesions, confined to the hippocampus proper (encompassing the four CA subfields and the dentate gyrus), are without effect on this behaviour. This finding suggests that the hippocampus proper does not subserve social recognition memory in the rat, but does not preclude the possibility that other areas of the hippocampal formation, such as the entorhinal cortex or subiculum, could support this form of learning. The present study addressed this issue by examining the effects of selective cytotoxic retrohippocampal (RHR) lesions (including both the entorhinal cortex and subiculum) on social recognition memory in the rat. RHR lesions produced a mild social recognition memory impairment, although lesioned animals still displayed a reduction in investigation time between the first and second exposure to the juvenile. This result is consistent with other studies which have implicated the retrohippocampal or parahippocampal area in olfactory recognition memory processes. It also suggests, however, that other areas, out with the retrohippocampal region, are also likely to play an important role in social recognition memory.
spellingShingle Bannerman, D
Lemaire, M
Yee, B
Iversen, S
Oswald, C
Good, M
Rawlins, J
Selective cytotoxic lesions of the retrohippocampal region produce a mild deficit in social recognition memory.
title Selective cytotoxic lesions of the retrohippocampal region produce a mild deficit in social recognition memory.
title_full Selective cytotoxic lesions of the retrohippocampal region produce a mild deficit in social recognition memory.
title_fullStr Selective cytotoxic lesions of the retrohippocampal region produce a mild deficit in social recognition memory.
title_full_unstemmed Selective cytotoxic lesions of the retrohippocampal region produce a mild deficit in social recognition memory.
title_short Selective cytotoxic lesions of the retrohippocampal region produce a mild deficit in social recognition memory.
title_sort selective cytotoxic lesions of the retrohippocampal region produce a mild deficit in social recognition memory
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