King-Smith P E
Perception. 1978;7(4):449-58. doi: 10.1068/p070449.
A model is proposed to explain the effects of line motion on visual sensitivity. The model incorporates recent evidence for parallel "pattern" and "flicker" systems. An element of either system consists of a spatial filter followed by a temporal filter; the characteristics of these filters were derived from previous psychophysical measurements. The model may be used to demonstrate why visual sensitivity to optimum triangular-wave motion is greater than for optimum square-wave motion, which, in turn, is greater than for on-off presentation. The predictions of the model are in reasonable agreement with threshold-amplitude data for triangular-wave and square-wave motion; the model is also consistent with threshold-frequency data for small-amplitude sinusoidal motion.
提出了一个模型来解释直线运动对视觉敏感度的影响。该模型纳入了近期关于平行“模式”和“闪烁”系统的证据。任一系统的一个元素都由一个空间滤波器和一个时间滤波器组成；这些滤波器的特性源自先前的心理物理学测量。该模型可用于说明为什么视觉对最佳三角波运动的敏感度高于最佳方波运动，而最佳方波运动的敏感度又高于开关呈现。该模型的预测与三角波和方波运动的阈值幅度数据合理相符；该模型也与小幅度正弦运动的阈值频率数据一致。
