McIlwain J T
Vision Res. 1983;23(5):507-16. doi: 10.1016/0042-6989(83)90125-6.
A series of visuotopic maps has been prepared from recordings of electrical potentials related to W-cell afferent activity in the cat's superior colliculus. These maps clearly exhibit an expected exaggeration of the representation of the upper visual field, due to tilt of the retina's visual streak in the 'position of paralysis'. This asymmetry disappears when the visual field's coordinate system is rotated by an angle equal to the tilt of the axis of the nasal streak. Previously published maps, based on recordings from postsynaptic collicular units, have failed to reflect this tilt of the nasal visual streak, perhaps in part because the centers of unit receptive-fields are biased estimators of the retinal origin of axons terminating near a collicular recording site.
通过记录猫上丘中与W细胞传入活动相关的电位，已绘制出一系列视拓扑图。这些图清楚地显示出，由于视网膜视觉条纹在“麻痹位置”倾斜，上视野的表征出现了预期的夸大。当视野坐标系旋转一个等于鼻侧条纹轴倾斜角度的角度时，这种不对称性就会消失。以前基于突触后丘神经元记录发表的图谱未能反映鼻侧视觉条纹的这种倾斜，可能部分原因是神经元感受野中心是对终止于丘记录位点附近轴突视网膜起源的有偏差估计。
