p304fig08.21 A computer simulation of the equal half-time property whereby the apparent motions within different scales that respond to the same flashes all reach the half-way point in the motion trajectory at the same time.<BR>||  Equal half-time property: how multiple scales cooperate to generate motion percept.  Travelling waves from Gaussian filters of different sizes bridge the same distance in comparable time.  The time needed to bridge half the distance between flashes is the same.