Abstract
Apparent motion perception occurs after the next stimulus is presented. It has been unclear how motion representation interpolated with spatiotemporal delay produces spatiotemporally consistent motion perception. We investigated apparent motion perception in a situation involving the spatiotemporal reversal of motion sequences. In five-points apparent motion display, the motion direction perception of the last two stimuli with the reversal was consistent with three preceding stimuli. This 'misperception' occurred when colors of the forth stimuli were different from the others, when vertical positions of the fourth stimulus were randomly changed, and when one preceding stimulus was presented (three-points apparent motion). The misperception might occur after the registration of temporal interval between the third and fifth stimuli, because perceived velocity with the sequence reversal was faster than that without the reversal. We concluded that, in relatively early processing stage, the flexible completion process of motion representation could postdictively induce spatiotemporally consistent motion perception.
