Fig. 2.

Sinusoidal angular vestibulo-ocular reflex behavior pre- and postsurgically for all subjects. Filled black circles are presurgical values. Thick gray lines and shading indicate 2 SD limits for control values for the respective measures. Top panel for each subject is gain with the 2 SD lower gain limit displayed for comparison. Middle panel for each subject is phase with the 2 SD phase advance limit displayed for comparison. Perfectly compensatory phase is defined to be 0.0 degrees (deg). Bottom panel for each subject is gain symmetry with the ±2 SD normal limit shaded for comparison. Positive values indicate a rightward asymmetry; i.e., rotation rightward produces lower eye velocity. Symmetric responses have 0.0% asymmetry.