Cannon M W
Vision Res. 1983;23(12):1441-9. doi: 10.1016/0042-6989(83)90156-6.
Visual evoked potential contrast sensitivity functions (VEP/CSFs) were determined for counterphase flickered sine-wave gratings in circular fields up to 8 degrees in diameter centered on the fovea. VEP sources responding to 16 c/deg gratings appeared to be concentrated in the central 2 degrees of the visual field while sources responding to lower spatial frequencies appeared to be distributed over progressively wider areas of the visual field as spatial frequency decreased. It was also found that independently determined VEP/CSFs for non-overlapping annular regions of the visual field centered on the fovea summed to equal the VEP/CSF obtained when both regions were stimulated simultaneously.
针对以中央凹为中心、直径达8度的圆形视野中的反相闪烁正弦波光栅，测定了视觉诱发电位对比敏感度函数（VEP/CSFs）。对16周/度光栅作出反应的VEP源似乎集中在视野中央2度范围内，而对较低空间频率作出反应的源则随着空间频率降低而分布在视野中逐渐变宽的区域。还发现，以中央凹为中心的视野中不重叠环形区域独立测定的VEP/CSFs相加后，等于同时刺激两个区域时获得的VEP/CSF。
