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. Author manuscript; available in PMC: 2008 Nov 12.
Published in final edited form as: J Neurophysiol. 2002 Feb;87(2):802–818. doi: 10.1152/jn.00409.2001

FIG. 6.

FIG. 6

Patterns of eye velocity predicted from 3 different computations that might account for the interaction of ongoing pursuit and electrical stimulation. The dashed lines in each polar plot indicate control eye velocity during pursuit in 8 directions, and the solid lines connect eye velocity predicted in stimulation trials. The arrows starting from the origin of each polar plot illustrate the eye velocity evoked by electrical stimulation during fixation. Predictions for the interaction of ongoing pursuit and electrical stimulation are: vector average (A), vector summation (B), and vector summation with omnidirectional enhancement of pursuit eye velocity (C).