当刺激图形为高速运动的方波光栅时,可观测到一种新的奇次谐波现象。当被试光栅为某些临界时间频率时,奇次谐波光栅静止不动,稍微偏离这些临界值,谐波光栅开始运动,其表现运动方向,或者与被试光栅相同,或者相反,这取决于被试光栅的时间频率高于或低于临界频率。本文使用视觉时空采样假设和付氏分析,初步解释了这一现象。 When the stimulus pattern is a high-speed moving square wave grating, a new odd harmonic phenomenon can be observed. When the test raster is at some critical time frequency, the odd harmonic rasters remain stationary, slightly off these thresholds, and the harmonic raster begins to move, which shows the direction of motion, or the same as the test raster or vice versa The time frequency of the grating under test is higher or lower than the critical frequency. This article uses the visual spatio-temporal sampling hypothesis and the Fu’s analysis, initially explained this phenomenon.