Figure 3.

Effects of microstimulation during invisible target tracking at a single FEF site. A, Stimulation was applied at the beginning of the occlusion interval. Each data point is a single saccade end point. The open and closed symbols correspond to the two directions of target motion. The arrows indicate the center of mass of the respective data points. B, Stimulation 600 msec after the beginning of occlusion interval. C, Average saccade deviation at different times during the occlusion interval. The error bars are ± 1 SEM. The asterisks indicate the t test significance level (*p < 0.05; **p < 0.01; ***p < 0.001).