VOR parameters were compared in subjects at the extremes of the seasickness susceptibility scale. Thirty-nine subjects highly susceptible to seasickness and 30 nonsusceptible subjects participated in the study. The VOR was evaluated by the Sinusoidal Harmonic Acceleration (SHA) test at frequencies of 0.01, 0.02, 0.04, 0.08, and 0.16 Hz. In subjects susceptible to seasickness, VOR gain was signi...

Cells in the vestibular nucleus are assumed to behave as linear systems. We tested this hypothesis by testing the verity of two principles, those of superposition and homogeneity. Recordings were obtained from vestibulo-only cells of two rhesus monkeys undergoing translations, rotations, and off-axis (eccentric) rotations. This was done for several frequencies (1–5 Hz for translation and 1–4 Hz...

The vertebrate vestibular system detects linear (otolith organs) and angular (semicircular canals) acceleration. The function of the otolith system is twofold, 1: perception of linear acceleration of the head, and 2: assessment of the spatial orientation of the head relative to the vector of gravity. Because of the latter function, a change of gravity will affect the vestibular input which, in ...