Fig. 10.

Transient Roll tilt − Translation motion profiles in an animal with intact and inactivated semicircular canals (SCC). The stimulus consisted of a subtractive combination of a 15° roll tilt toward the animal’s right ear and linear translation to the right. Horizontal eye position (top) and eye velocity (middle) of both the right and left eyes (mean ± SD; left, nine trials; right, 26 trials). Dotted lines are zero eye position (straight-ahead gaze) and zero eye velocity. Bottom, Translational component and resultant IA acceleration measured as the outputs of two linear accelerometers mounted on the linear sled and on the animal’s head, respectively. The IA acceleration trace was not measured for the Inactivated SCC plot and is therefore duplicated from the Intact SCC condition.