Geometrical considerations on canal-otolith interactions during OVAR and Bayesian modelling

Progress in Brain Research
Jean LaurensDominik Straumann

Abstract

During constant-velocity rotation about a tilted axis (OVAR), the VOR and the rotation perception last indefinitely, but show a striking dependency on tilt angle. We show that, during OVAR, a variety of motions can account for the head motion relative to gravity. Some of these are in conflict with canal signals, but correspond to a lower angular velocity; we suggest that the brain performs a trade-off in order to select the best motion. We show that this theory explains the effect of tilt angle on velocity estimation during OVAR.

Citations

Jul 9, 2010·Journal of Neurophysiology·Jean LaurensBernhard J M Hess

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