Effects of ibotenic acid lesions of the dorsal hippocampus on contextual fear conditioning in mice:: comparison with mammillary body lesions

被引：17
|
作者：
Célérier, A
Pierard, C
Beracochea, D
机构：
[1] Univ Bordeaux 1, CNRS, UMR 5106, Cognit Neurosci Lab,URA 339, F-33405 Talence, France
[2] IMASSA, Dept Physiol Integree, F-92223 Bretigny Sur Orge, France
来源：
BEHAVIOURAL BRAIN RESEARCH | 2004年 / 151卷 / 1-2期
关键词：
excitotoxic lesion; hypothalamus; diencephalon; emotional memory; contextual processing;
D O I：
10.1016/j.bbr.2003.08.006
中图分类号：
B84 [心理学]; C [社会科学总论]; Q98 [人类学];
学科分类号：
03 ; 0303 ; 030303 ; 04 ; 0402 ;
摘要：
The goals of the present study were to determine if ibotenic acid lesions of the dorsal hippocampus (dHPC) or of mammillary body (MB) of the hypothalamus would induce similar contextual conditioning deficit in a fear-conditioning paradigm, previously developed in mice [Eur. J. Neurosci. 12 (2000) 2575]. Results showed that ibotenic acid lesions of the dHPC or of the MB both induced severe deficits on contextual conditioning but spared auditory conditioning, as compared to controls. This study provides direct evidence for an involvement of dHPC neurones in contextual fear conditioning and is first to demonstrate an involvement of the MB in the mediation of contextual fear conditioning. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码：65 / 72
页数：8
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