Learning and extinction of a passive avoidance response in mice with high levels of predisposition to catalepsy

被引:6
|
作者
Dubrovina N I. [1 ]
Zinov'ev D.R. [1 ]
Zinov'eva D.V. [1 ]
Kulikov A.V. [2 ]
机构
[1] State Research Institute of Physiology, Siberian Branch, Russian Academy of Medical Sciences, Novosibirsk 630117
[2] Institute of Cytology and Genetics, Siberian Branch, Russian Academy of Sciences, Novosibirsk 630090
关键词
Catalepsy; Conditioned passive avoidance reaction; Depression; Extinction; Memory; Mice;
D O I
10.1007/s11055-009-9152-4
中图分类号
学科分类号
摘要
This report presents results obtained from comparative analysis of learning and the dynamics of extinction of a conditioned passive avoidance response in ASC mice, which were bred for a high level of predisposition to catalepsy, and in CBA and AKR mice. The following findings were obtained: 1) impairments to the extinction of the memory of fear represent an important symptom of depression in ASC mice; 2) extinction is delayed in CBA mice; and 3) new inhibitory learning occurs quickly in AKR mice. Prolonged retention of the fear memory in ASC mice appears to be related to increased anxiety on prolonged testing without a punishment. The deficit of inhibition of the fear reaction in ASC mice allows this strain to be regarded as a genetic model of depression. © 2009 Springer Science+Business Media, Inc.
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页码:475 / 480
页数:5
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