Title
Images of illusory motion in primary visual cortex.
Abstract
Illusory motion can be generated by successively flashing a stationary visual stimulus in two spatial locations separated by several degrees of visual angle. In appropriate conditions, the apparent motion is indistinguishable from real motion: The observer experiences a luminous object traversing a continuous path from one stimulus location to the other through intervening positions where no physical stimuli exist. The phenomenon has been extensively investigated for nearly a century but little is known about its neurophysiological foundation. Here we present images of activations in the primary visual cortex in response to real and apparent motion. The images show that during apparent motion, a path connecting the cortical representations of the stimulus locations is filled in by activation. The activation along the path of apparent motion is similar to the activation found when a stimulus is presented in real motion between the two locations.
Year
DOI
Venue
2006
10.1162/jocn.2006.18.7.1174
J. Cognitive Neuroscience
Keywords
Field
DocType
illusory motion,physical stimulus,stimulus location,real motion,apparent motion,appropriate condition,visual angle,continuous path,primary visual cortex,stationary visual stimulus
Visual angle,Optical illusion,Visual cortex,Motion perception,Second-order stimulus,Cognitive psychology,Psychology,Stimulus (physiology),Perception,Illusory motion
Journal
Volume
Issue
ISSN
18
7
0898-929X
Citations 
PageRank 
References 
4
0.54
2
Authors
4
Name
Order
Citations
PageRank
Axel Larsen140.54
Kristoffer H Madsen2563.30
Torben E Lund39010.33
Claus Bundesen451.39