Tychsen L, Rastelli A, Steinman S, Steinman B
Department of Opthalmology, Washington University School of Medicine, St. Louis, MO 63110, USA.
Dev Med Child Neurol. 1996 May;38(5):408-22. doi: 10.1111/j.1469-8749.1996.tb15099.x.
Motion perception was tested by requiring adult subjects to view gratings that remained stationary but reversed in contrast several times per second. Subjects viewed monocularly and judged whether the gratings were stationary, or moving in one direction, in successive 3s trials. Subjects who had early-onset strabismus most frequently perceived vertically oriented gratings to be moving nasalward, and horizontally oriented gratings to be moving up or down. Normal subjects and subjects who had late-onset strabismus most frequently perceived the gratings to be stationary. The asymmetries of motion perception in early-onset strabismus imply that the visual motion neurons of cerebral cortex develop properly only if they receive normal binocular input during infancy.
通过要求成年受试者观看每秒反转对比度数次但保持静止的光栅来测试运动感知。受试者单眼观看，并在连续3秒的试验中判断光栅是静止的，还是朝一个方向移动。患有早发性斜视的受试者最常感觉到垂直方向的光栅向鼻侧移动，水平方向的光栅向上或向下移动。正常受试者和患有迟发性斜视的受试者最常感觉到光栅是静止的。早发性斜视中运动感知的不对称性意味着，只有在婴儿期接受正常的双眼输入时，大脑皮层的视觉运动神经元才能正常发育。
