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Science 28 September 1979:
Vol. 205. no. 4413, pp. 1399 - 1401
DOI: 10.1126/science.472756
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Articles

Science, Vol 205, Issue 4413, 1399-1401
Copyright © 1979 by American Association for the Advancement of Science

articles

Mutual repulsion between moving visual targets

W Marshak and R Sekuler

When two spatially intermingled sets of random dots move in different directions, the direction of each set may be misperceived. Observers report that each set of dots appears to move in a direction displaced by as much as 20 degrees from the direction of its companion set. Probably the result of inhibitory interactions, this mutual repulsion occurs at a central site in the visual system and may normally enhance discrimination of direction.


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