Fig. 5.

Comparison of stimulation-evoked changes in gaze in head-restrained and head-unrestrained conditions. The data are fitted with a linear regression (solid line; slope = 1.05; r = 0.87; P< 0.0001). Data are from 10 sites. The open circles indicate the 8 sites with only one configuration of stimulation parameters. For two sites (black and gray circles), data points for each of three sets of stimulation parameters are included. For the site shown in filled gray circles, the stimulation durations were 200, 300, and 400 ms (20 µA, 300 Hz). For the site represented with filled black circles (see Fig. 2), stimulation durations were 50, 100, and 200 ms (25 µA, 300 Hz)