Last but not least.
When a simple rectangular grid is drawn toward one's face there is the striking illusion that a spherical bulge is protruding from the grid. This illusion may be helpful in studying the interaction of spatial and motion processing.
Foster
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Brain and Perception Laboratory, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0109, USA.
Altschuler
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EL
D006801:Humans; D009039:Motion Perception / Q000502:physiology*; D009903:Optical Illusions / Q000502:physiology*; D013028:Space Perception / Q000502:physiology*