Wright M J
J Opt Soc Am A. 1987 Aug;4(8):1627-33. doi: 10.1364/josaa.4.001627.
Sensitivity to motion was studied by using sinusoidal gratings of contrast 0.4 that were displaced sinusoidally over time. At low motion temporal frequencies, thresholds were proportional to velocity and were independent of spatial frequency. Sensitivity, defined as the reciprocal of the threshold displacement amplitude, declined exponentially with temporal frequencies above the peak. Peak motion sensitivities decreased with visual field eccentricity but could be equalized by applying a spatial scaling function. However, this left a small relative superiority in the periphery for high temporal frequencies of motion, and possible explanations for this residual temporal inhomogeneity are considered.
通过使用对比度为0.4的正弦光栅来研究对运动的敏感性，该光栅随时间作正弦位移。在低运动时间频率下，阈值与速度成正比，且与空间频率无关。敏感性定义为阈值位移幅度的倒数，在高于峰值的时间频率下呈指数下降。峰值运动敏感性随视野离心率降低，但可通过应用空间缩放函数使其相等。然而，这在周边区域对于高时间频率的运动仍留下了较小的相对优势，并对这种残余的时间不均匀性的可能解释进行了探讨。
