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


Laurens, J; Hess, B J M; Straumann, D (2008). Geometrical considerations on canal-otolith interactions during OVAR and Bayesian modelling. Progress in Brain Research, 171:287-290.

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.

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.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > Neuroscience Center Zurich
04 Faculty of Medicine > Center for Integrative Human Physiology
04 Faculty of Medicine > University Hospital Zurich > Clinic for Neurology
Dewey Decimal Classification:570 Life sciences; biology
610 Medicine & health
Language:English
Date:2008
Deposited On:09 Dec 2008 16:55
Last Modified:06 Dec 2017 14:24
Publisher:Elsevier
ISSN:0079-6123
Publisher DOI:https://doi.org/10.1016/S0079-6123(08)00641-9
PubMed ID:18718315

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