Inertial processing of vestibulo-ocular signals

Bernhard J.M. Hess, Dora Angelaki

Research output: Contribution to journalArticle

Abstract

New evidence for a central resolution of gravito-inertial signals has been recently obtained by analyzing the properties of the vestibulo-ocular reflex (VOR) in response to combined lateral translations and roll tilts of the head. It is found that the VOR generates robust compensatory horizontal eye movements independent of whether or not the interaural translatory acceleration component is canceled out by a gravitational acceleration component due to simultaneous roll-tilt. This response property of the VOR depends on functional semicircular canals, suggesting that the brain uses both otolith and semicircular canal signals to estimate head motion relative to inertial space. Vestibular information about dynamic head attitude relative to gravity is the basis for computing head (and body) angular velocity relative to inertial space. Available evidence suggests that the inertial vestibular system controls both head attitude and velocity with respect to a gravity-centered reference frame. The basic computational principles underlying the inertial processing of otolith and semicircular canal afferent signals are outlined.

Original languageEnglish (US)
Pages (from-to)148-161
Number of pages14
JournalAnnals of the New York Academy of Sciences
Volume871
DOIs
StatePublished - Jan 1 1999

Fingerprint

Canals
Vestibulo-Ocular Reflex
Semicircular Canals
Head
Gravitation
Otolithic Membrane
Processing
Eye movements
Angular velocity
Brain
Control systems
Eye Movements
Reflex
Otolith
Gravity

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • History and Philosophy of Science

Cite this

Inertial processing of vestibulo-ocular signals. / Hess, Bernhard J.M.; Angelaki, Dora.

In: Annals of the New York Academy of Sciences, Vol. 871, 01.01.1999, p. 148-161.

Research output: Contribution to journalArticle

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