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首页> 外文期刊>Acta neurobiologiae experimentalis >Responses of cat’s pulvinar neurons to moving visual stimuli
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Responses of cat’s pulvinar neurons to moving visual stimuli

机译：猫的眼神经元对运动视觉刺激的反应

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Visually-driven pulvinar neurons were investigated by moving visual stimuli. Of a total of 256 observed neurons 25 percent were not sensitive to the movement of light spots, but revealed a vigorious activity during the movement of black objects. According to the response pattern elicited by the motion of objects through receptive fields, neurons were classified as follows: (a) directionally non-selective – 41 percent, (b) directionally selective – 28 percent, (c) multimodal – 29 percent, (d) suppressed-by-contrast type – 2 percent. Background illumination exerts different types of influences on the movement-evoked spike responses in the pulvinar neurons. Eighteen percent of the neurons were not affected by background illumination. Eight percent of the neurons were transformed from directionally non-selective into the directionally selective ones, some of which reversed their preferred directions during background illumination (5 percent). Activity of 15 percent of the neurons was facilitated and of 21 percent was suppressed during various levels of background illumination. Twenty three percent of the neurons lost their spike activity when the background illumination was switched on.
机译：通过移动视觉刺激来研究视觉驱动的枕神经元。在总共256个观察到的神经元中，有25％对光斑的移动不敏感，但在黑色物体移动期间显示出剧烈的活动。根据物体通过感受野运动引起的反应模式，神经元分类如下：（a）定向非选择性– 41％，（b）定向选择性– 28％，（c）多峰– 29％，（ d）对比抑制类型– 2％。背景照明对眼球神经元中的运动诱发的尖峰反应产生不同类型的影响。 18％的神经元不受背景照明的影响。百分之八的神经元从有方向的非选择性神经元转变为有方向的选择性神经元，其中一些在背景照明期间反转了它们的首选方向（5％）。在各种背景照明水平下，有15％的神经元活动得到促进，而21％的神经元被抑制。当背景照明开启时，百分之二十三的神经元失去了尖峰活动。

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