FIG. 3.

Mean and 1 SD aVOR gain in unilateral vestibular hypofunction and healthy controls. In the patient subjects (light bars), we found aVOR gain asymmetry only in the yaw canal plane. There was no asymmetry in aVOR gain within roll or pitch canal planes. For the controls (dark bars), there was no difference in aVOR gain within any cardinal plane head impulses; these data were combined by plane (yaw, roll, pitch). However, the roll aVOR gains in the control subjects were lower than aVOR gains during yaw and pitch. *p < 0.0001.