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. 1979 Sep-Oct;29(5):923-9.

[Changes in the cholinosensitivity of sensomotor cortex neurons during conditioned reflex extinction]

[Article in Russian]
O Kh Koshtoiants, M Iu Antipina, A V Kol'tsova
  • PMID: 494795

[Changes in the cholinosensitivity of sensomotor cortex neurons during conditioned reflex extinction]

[Article in Russian]
O Kh Koshtoiants et al. Zh Vyssh Nerv Deiat Im I P Pavlova. 1979 Sep-Oct.

Abstract

Characteristics of neuronal responses of the sensorimotor cortex to ionophoretically administered neuromediators (acetylcholine, L-glutamate) were studied in rabbit in the course of extinction of conditioned defensive reflex. In the majority of neurones the extinction of the conditioned reflex is accompanied by a drop of cholinosensitivity. In a number of neurones the extinction of reflexes either does not change the reaction to acetylcholine, or enhances it. The analysis of these reactions permits to assume the existence of a group of neurones directly involved in the formation, fixation and storage of the temporary connection.

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