FIG. 4.

Gain of each component of 3D VOR responses for each of N = 4 monkeys during 1 Hz, 50 °/s, peak whole-body rotations about the horizontal, LARP, and RALP canal axes on the first, third, and seventh days of continuous stimulation using a head-mounted multichannel vestibular prosthesis. Before: values for each monkey measured in response to head movement with the prosthesis stimulating at constant pulse rates, independent of head velocity, 3–5 h after prosthesis activation. After: values measured 4–48 h after the prosthesis was powered off on day 7. Normal: Mean ± SD responses of five normal rhesus monkeys. Ev eye velocity; Hv head velocity.