ABSTRACT
The increasing shear force directed along the interaural axis induced a number of linear vestibuloocular reflexs (VOR) that modified the angular VOR produced by the angular acceleration. The fixed chair centrifuge generates a reproducible combination of linear and angular acceleration stimuli. In the present study it was used to stimulate the labyrinth and dual scleral search coils were used to measure the three-dimensional components of the eye movement response. Dual scleral search coils were used to measure horizontal, vertical and torsional eye position using an on-chair transmitter system. Off center rotation causes vertical eye velocity components and the direction of these components reverse when the direction of the centripetal linear acceleration is reversed. The direction of these vertical components is such as to cause the axis of eye velocity to tilt towards alignment with the direction of the gravitoinertial force.
