Effect of tilt on the response of neuronal activity within the cat vestibular nuclei during slow and constant velocity rotation.

The responses of neurons sensitive to static tilt in the vestibular nuclei were examined in decerebrate cats during slow and constant velocity rotations about an axis tilted at various angles from the vertical. During any 360 degrees rotation, each unit showed a modulation of their firing rate, with a position-dependent maximum and minimum. Changes in amplitude of head displacement from 5 degrees to 25 degrees decreased the response gain of the units without affecting the locations of the discharge maxima and minima.