Corollary discharge provides accurate eye position information to the oculomotor system

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Science  16 Sep 1983:
Vol. 221, Issue 4616, pp. 1193-1195
DOI: 10.1126/science.6612334


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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