Figure 6.

Effects of initial eye position in the head-free setup. (A) Amplitude of gaze saccades evoked by low (red) and high (blue) frequency microstimulation as a function of initial eye-in-head position. Lines show linear regression through the data. Each data point represents a single gaze saccade. (B) Magnitude of slopes obtained from linear regression of gaze amplitude on initial eye-in-head position for each stimulation site. Data are shown for low and high frequency stimulation conditions. (C) Differences in slope between low and high frequency conditions. (D) Horizontal eye-in-head and head position over time during the entire stimulation train, averaged over all trials in the high frequency condition, for each site in the head-free experiment.