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Science 16 September 1983:
Vol. 221. no. 4616, pp. 1193 - 1195
DOI: 10.1126/science.6612334
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Articles

Science, Vol 221, Issue 4616, 1193-1195
Copyright © 1983 by American Association for the Advancement of Science

articles

Corollary discharge provides accurate eye position information to the oculomotor system

BL Guthrie, JD Porter, and DL Sparks

The saccadic system accurately compensates for perturbations of eye position produced by microstimulation of the superior colliculus. This requires that information about the stimulation-induced change in eye position be provided by an extraretinal source--either proprioceptive endings in extraocular muscles or a centrally generated corollary discharge. It is shown that compensation remains intact after elimination of extraocular muscle proprioception, demonstrating that corollary discharge provides accurate eye position information.


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