Model studies of the mechanisms of the dynamics of double orientation tuning of visual cortex neurons

被引:0
作者
Saltykov K.A. [1 ]
机构
[1] Inst. of Higher Nervous Activity, Russian Academy of Sciences, Moscow
基金
俄罗斯基础研究基金会;
关键词
Computer Model; Relative Position; Visual Cortex; Receptive Field; Inhibitory Zone;
D O I
10.1023/A:1026602901048
中图分类号
学科分类号
摘要
A geometrical computer model was used to study the dynamics of double orientation tuning of visual cortex neurons, which occurs in the visual cortex of the cat. Modeling confirmed the role of the shapes, relative positions, and weightings of the excitatory and inhibitory zones of the receptive field and the dynamics of these properties for generating this effect. It was shown that acute and selective orientation tuning with two peaks could be formed dynamically only by means of changes in the weightings of zones in a receptive field containing terminal and lateral inhibitory zones, while changes in the positions and areas of zones in the receptive field required the receptive field to contain only a terminal inhibitory zone.
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收藏
页码:687 / 693
页数:6
相关论文
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