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[电刺激犬杏仁核不同部位对食物性条件反射形成的影响]

[Effect of electric stimulation of different portions of the amygdala on the formation of alimentary conditioned reflexes in the dog].

作者信息

Danilova L K

出版信息

Zh Vyssh Nerv Deiat Im I P Pavlova. 1984 May-Jun;34(3):451-8.

PMID:6475295
Abstract

In dogs with previous learning experience, a low-frequency (1 imp/s), weak (20-50 mcA) amygdala stimulation produces dissimilar influences on formation rate and value of conditioned alimentary reflexes in dependence on stimulation localization. At stimulation of amygdala basolateral part, the reflexes formation proceeds 2-3 times slower than normally. Their value is significantly reduced, the triggering of the secretory reaction is delayed. Dorsomedial part stimulation accelerates the process of conditioning, intensifies the secretion but delays the start of secretory reaction. The elaboration of differentiation inhibition is facilitated by basolateral part stimulation and is impeded by dorsomedial amygdala activation.

摘要

在有过学习经历的犬中,低频(1次/秒)、弱强度(20 - 50微安)的杏仁核刺激根据刺激部位的不同,对条件性食物反射的形成速度和价值产生不同影响。刺激杏仁核基底外侧部时,反射形成速度比正常情况慢2 - 3倍。其价值显著降低,分泌反应的触发延迟。刺激背内侧部则加速条件反射过程,增强分泌,但延迟分泌反应的开始。基底外侧部刺激有助于分化抑制的形成,而杏仁核背内侧部激活则会阻碍分化抑制的形成。

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