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Science 13 May 1983:
Vol. 220. no. 4598, pp. 744 - 745
DOI: 10.1126/science.6836313
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Articles

Science, Vol 220, Issue 4598, 744-745
Copyright © 1983 by American Association for the Advancement of Science

articles

Single visual neurons code opposing motion independent of direction

BJ Frost and K Nakayama

Cells in intermediate and deeper layers of the pigeon optic tectum respond best when a textured background pattern is moved in the opposite direction to a moving test spot. Complete inhibition occurs when the background moves in the same direction as the test stimulus. Most noteworthy is the invariance of this relationship over a wide range of test spot directions. These cells represent a higher level of abstraction in a motion-detecting system and may play a role in figure-ground segregation or the discrimination of the motion of an object from self-induced optical motion.


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Response to Motion in Extrastriate Area MSTl: Disparity Sensitivity.
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