Boulton J C, Baker C L
Department of Psychology, McGill University, Montreal, Quebec, Canada.
Vision Res. 1991;31(1):77-87. doi: 10.1016/0042-6989(91)90075-g.
The maximum displacement for the detection of apparent motion is measured using stimuli made up of micro-patterns randomly distributed across the stimulus field. The micro-patterns were Gabor functions or half-wave rectified Gabor functions. Dmax is shown to be dependent of the spatial frequency content of the stimulus, and to be largely independent of the size of the stimulus elements or the number of them in the stimulus field (within limits). Evidence is shown for Dmax to be considered a measure of motion detection that reveals properties of low level underlying motion mechanisms.
使用由随机分布在刺激场中的微图案组成的刺激来测量用于检测表观运动的最大位移。这些微图案是伽柏函数或半波整流伽柏函数。结果表明，最大位移（Dmax）取决于刺激的空间频率成分，并且在很大程度上与刺激元素的大小或刺激场中刺激元素的数量（在一定范围内）无关。有证据表明，最大位移可被视为一种运动检测指标，它揭示了底层低水平运动机制的特性。
