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[视觉皮层士的宁化对家兔外侧膝状体诱发电活动的影响]

[Effect of strychninization of the visual cortex on evoked activity in the rabbit lateral geniculate body].

作者信息

Lazareva N A

出版信息

Neirofiziologiia. 1976;8(5):459-66.

PMID:980166
Abstract

Changes in responses of low-frequency and high-frequency LGB neurons were studied on anesthetized and paralyzed rabbits after strichninization of the visual cortex. It was found that in the group of low-frequency neurons the average discharge frequency of responses increased and latencies decreased indicating a dominance of corticofugal facilitation. On the contrary, in the group of high-frequency neurons the average discharge frequency of responses decreased and latencies increased. This suggests a dominance of corticofugal inhibition. The existence of reciprocal corticofugal influences on the neurons of different components of the visual pathways is assumed.

摘要

在对视觉皮层进行士的宁处理后,对麻醉并麻痹的家兔低频和高频外侧膝状体神经元的反应变化进行了研究。结果发现,在低频神经元组中,反应的平均放电频率增加,潜伏期缩短,表明皮质离心性易化占主导。相反,在高频神经元组中,反应的平均放电频率降低,潜伏期延长。这表明皮质离心性抑制占主导。推测视觉通路不同成分的神经元存在相互的皮质离心性影响。

相似文献

1
[Effect of strychninization of the visual cortex on evoked activity in the rabbit lateral geniculate body].[视觉皮层士的宁化对家兔外侧膝状体诱发电活动的影响]
Neirofiziologiia. 1976;8(5):459-66.
2
Reactions of lateral geniculate cells to chemical and electrical excitation of the visual cortex in rabbits.
J Neurosci Res. 1980;5(5):419-29. doi: 10.1002/jnr.490050507.
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Zh Vyssh Nerv Deiat Im I P Pavlova. 1974 Jan-Feb;24(1):164-71.
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Zh Vyssh Nerv Deiat Im I P Pavlova. 1976 Mar-Apr;26(2):397-402.
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Zh Vyssh Nerv Deiat Im I P Pavlova. 1986 Sep-Oct;36(5):913-8.
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Lateral geniculate cells responses following blockade of the visual cortex in rats: a comparison with rabbits.大鼠视皮层阻断后外侧膝状体细胞的反应:与家兔的比较。
J Neurosci Res. 1982;7(4):461-9. doi: 10.1002/jnr.490070413.
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