Significant surround modulation was reported in the cortical areas corresponding to the periphery of the visual field, whereas no clear surround modulation was reported in the center. To understand the neural bases underlying the differences of the functions between the cortical areas corresponding to the center and periphery of the visual field, responses of the cells in the cat early visual cortex with their receptive fields in the center and periphery of the visual field were recorded by using multichannel electrodes, and cross-correlations of the spikes in the responses to the full-field stimuli, and the center-surround stimuli, which contained a grating in a central patch and a surround grating, were analyzed. Percentages of the cell pairs showing significant cross-correlation were larger in the cortical areas corresponding to the periphery than the center. In the center of the visual field, the percentages of the cell pairs showing significant cross-correlation significantly decreased as the separation of the recording points increased, and the time lags of the peaks of the cross-correlogram distributed around zero. In the periphery of the visual field, the time lags of the peaks of the cross-correlogram distributed more widely and increased as the separation of the recording points increased. In the responses to the center-surround stimuli in the preferred orientation of each cell, percentages of the cell pairs showing significant cross-correlation were larger in the periphery than the center. These results suggest that more lateral interactions occur in the cortical areas corresponding to the periphery than the center of the visual field.

中文翻译：

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猫早期视觉皮层中枢视觉和周边视觉神经元相关性的差异。

在对应于视野外围的皮层区域报告了显着的环绕调制，而在中心没有报告清晰的环绕调制。为了了解视野中心和外围对应的皮层区域之间功能差异的神经基础，猫早期视觉皮层中的细胞及其在视野中心和外围的感受野的反应是通过使用多通道电极记录，并分析了对全场刺激和中心环绕刺激的响应中尖峰的互相关，其中包含中央贴片中的光栅和环绕光栅。在对应于外围的皮质区域中，显示出显着互相关的细胞对的百分比大于中心。在视野中心，随着记录点间距的增加，显示出显着互相关的细胞对的百分比显着降低，并且互相关图峰值的时滞分布在零附近。在视野的外围，互相关图峰的时滞分布更广，并且随着记录点间距的增加而增加。在每个细胞的首选方向对中心周围刺激的响应中，显示出显着互相关的细胞对的百分比在外围大于中心。