Abstract
In order to investigate the effects of active and passive processing of apparent motion perception on visual evoked potential (VEP), two experiments were conducted in which point-lights walkers were presented intermittently at the rate of 3 Hz as stimuli. The point-lights walker was composed of only 10 point-lights represented main joints of a human walker, and in intermittent presentation apparent motion of those point-lights was perceived. In Experiment 1, participants discriminated four stimuli, which were forward walk (FW), backward walk (BW), random walk (RW) and static sequence (SS), so that active processing was examined. In Experiment 2, passive processing and task loads were examined by using RW and SS. In both experiments, five VEP components were found for motion stimuli (FW, BW, RW), N60, P 120, N 185, P210 and N280. By comparisons between experiment 1 and experiment 2, it was suggested that N60 and P210 reflected active motion perception such as tracking of point-lights, and that N280 reflected both passive motion perception and task loads.
