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猫脊髓中的反复条件作用。眠尔通对反复易化和抑制的不同作用。

Recurrent conditioning in the cat spinal cord. Differential effect of meprobamate on recurrent facilitation and inhibition.

作者信息

WILSON V J, TALBOT W H

出版信息

J Gen Physiol. 1960 Jan;43(3):495-502. doi: 10.1085/jgp.43.3.495.

DOI:10.1085/jgp.43.3.495
PMID:13845142
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC2195015/
Abstract

The action of cumulative doses of meprobamate on antidromic conditioning has been studied in spinal cats. Recurrent facilitation is greatly reduced or completely abolished by total doses ranging from 210 to 400 mg./kg. The depth of recurrent inhibition is not affected in a consistent manner by meprobamate, but the duration of inhibition is markedly increased in all experiments. This differential action of meprobamate on facilitation and inhibition can be utilized to study conditioning effects consisting of combined inhibition and facilitation. If conditioning starts with an inhibitory phase, variable in duration, followed by facilitation, meprobamate depresses the facilitation and reveals an extended inhibitory curve. Facilitation, however, is not always accompanied by inhibition, since in some cases facilitation is depressed and no inhibition is uncovered. The results of these experiments are discussed in relation to the various types of conditioning that have been produced by antidromic stimulation.

摘要

在脊髓猫身上研究了眠尔通累积剂量对抗向性条件作用的影响。总剂量在210至400毫克/千克范围内时,反复易化作用会大幅降低或完全消除。眠尔通对反复抑制的深度没有一致的影响,但在所有实验中抑制的持续时间均显著增加。眠尔通对易化和抑制的这种差异作用可用于研究由抑制和易化相结合组成的条件作用效果。如果条件作用始于持续时间可变的抑制期,随后是易化期,眠尔通会抑制易化作用并显示出延长的抑制曲线。然而,易化作用并不总是伴有抑制作用,因为在某些情况下易化作用受到抑制但未发现抑制作用。结合由逆向刺激产生的各种类型的条件作用,对这些实验结果进行了讨论。

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本文引用的文献

1
After-currents, after-potentials, excitability, and ventral root electrotonus in spinal motoneurons.脊髓运动神经元中的后电流、后电位、兴奋性及腹根电紧张
J Gen Physiol. 1951 Nov;35(2):289-321. doi: 10.1085/jgp.35.2.289.
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Recurrent facilitation of spinal reflexes.脊髓反射的反复易化
J Gen Physiol. 1959 Mar 20;42(4):703-13. doi: 10.1085/jgp.42.4.703.
3
The behaviour of tonic alpha and gamma motoneurones during stimulation of recurrent collaterals.在刺激返回侧支时紧张性α和γ运动神经元的行为。
J Physiol. 1957 Oct 30;138(3):381-400. doi: 10.1113/jphysiol.1957.sp005857.