Intracortical origin of visual maps
Intracortical origin of visual maps
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DOI：
10.1038/86089
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发表时间：
2001-04-01
影响因子：
25
通讯作者：
Tsodyks, MV
中科院分区：
文献类型：
--
作者：
Ernst, UA;Pawelzik, KR;Tsodyks, MV
先前的实验表明，初级视觉皮层中首选方向图的形状并不取决于视觉体验。我们提议！一个网络模型，表明各个单元的方向和方向选择性以及相应角度图的结构可以从局部循环连接中出现。我们的模型再现了首选方向和方向图的结构，并解释了它们相互关系的起源。该模型还解释了感受野位置变化与皮层表面单个神经元偏好方向变化之间的相关性。
Previous experiments indicate that the shape of maps of preferred orientation in the primary visual cortex does not depend on visual experience. We propose! a network model that demonstrates that the orientation and direction selectivity of individual units and the structure of the corresponding angle maps could emerge from local recurrent connections. Our model reproduces the structure of preferred orientation and direction maps, and explains the origin of their interrelationship. The model also provides an explanation for the correlation between position shifts of receptive fields and changes of preferred orientations of single neurons across the surface of the cortex.