Vidyasagar T R
Biol Cybern. 1987;57(1-2):11-23. doi: 10.1007/BF00318712.
The orientation biases seen in the responses of cells in the retina and dLGN are dependent on the spatial frequency of the stimulus, being appreciable only at higher spatial frequencies. An inhibitory mechanism that suppresses the responses to low spatial frequencies would leave a striate cell receiving a biased geniculate input with an orientation sensitivity at the higher spatial frequencies. Such an inhibition could in fact come from one or a small group of LGN cells (through cortical interneurones), since their response extends to spatial frequencies much lower than for cortical cells at the same eccentricity. According to this scheme, a number of other striate response characteristics, e.g., their length and spatial frequency response functions, can also be explained.
在视网膜和背外侧膝状体神经核（dLGN）细胞反应中观察到的方向偏差取决于刺激的空间频率，仅在较高空间频率下才明显。一种抑制对低空间频率反应的抑制机制会使一个纹状细胞在较高空间频率下接收具有方向敏感性的偏向性膝状体输入。实际上，这种抑制可能来自一个或一小群外侧膝状体神经核细胞（通过皮层中间神经元），因为它们的反应延伸到比相同离心率下皮层细胞低得多的空间频率。根据这个方案，许多其他纹状细胞反应特征，例如它们的长度和空间频率反应函数，也可以得到解释。
