A neural architecture for visual motion perception: group and element apparent motion

Two brief flashes of light, separated in both time and space, create an illusion of movement from the location of the first flash to that of the second when the spatiotemporal parameters of the display are within the correct range. This phenomenon is called the Phi phenomenon. The authors present a summary of several psychophysical results that illustrate the complex interrelationship between stimulus factors influencing Phi and the organization of the resulting motion percepts. A neural network model whose mechanisms are capable of explaining these percepts is then presented.<>