An illusion of coherent global motion arising from single brief presentations of a stationary stimulus.
We describe a new illusion in which a single stationary stimulus appears to undergo coherent global motion. Contrast relationships between the stimulus elements suggest the illusion arises via processing of Off- and On-channel signals that remain independent until after passing through low-level motion detectors. We propose that patterns of activation resulting from biphasic temporal impulse response functions in the magnocellular pathway are the basis of the illusion, and describe a model to account for the illusory motion percept.
Brooks
Anna
A
James Cook University, QLD 4879 Cairns, Australia. anna.brooks@jcu.edu.au
van der Zwan
Rick
R
Holden
John
J
D003196:Computer Graphics; D015350:Contrast Sensitivity / Q000502:physiology; D006801:Humans; D008954:Models, Biological; D009039:Motion Perception / Q000502:physiology*; D009903:Optical Illusions; D010775:Photic Stimulation; D011601:Psychophysics; D014795:Visual Pathways