A UNIFIED ACCOUNT OF 3 APPARENT MOTION ILLUSIONS

We discuss three motion illusions, the fluted square wave illusion, th e reverse phi illusion and the Pantle illusion. In these illusions rev ersed apparent motion is either induced or eliminated by the introduct ion of a blank inter-frame-interval between the frames of the apparent motion sequence. In order to simulate these effects with the multi-ch annel gradient model we had to introduce low-pass spatial filters and second-order temporal differentiating filters. These illusions have be en used as evidence of multiple motion mechanisms. Here we demonstrate that they can be considered as emergent properties of a single comput ational strategy.