Registro del reflejo vestibulooculomotor con la técnica de la bobina corneal en campo magnético (scleral search coil). Revisión de afecciones vestibulares periféricas

Translated title of the contribution: Vestibulo-oculomotor reflex recording using the scleral search coil technique. Review of peripheral vestibular disorders

Marisol Boleas-Aguirre, Amerio A. Migliaccio, John P. Carey

Research output: Contribution to journalReview articlepeer-review

Abstract

Our goal is to review vestibulo-oculomotor reflex (VOR) studies on several peripheral vestibular disorders (Ménière's disease, vestibular neuritis, benign paroxysmal positional vertigo, superior canal dehiscence syndrome, and vestibular neuroma), using the scleral search coil (SSC) technique. Head movements are detected by vestibular receptors and the elicited VOR is responsible for compensatory 3 dimensional eye movements. Therefore, to study the VOR it is necessary to assess the direction and velocity of 3 dimensional head and eye movements. This can be achieved using the SCC technique. Interaction between a scleral search coil and an alternating magnetic field generates an electrical signal that is proportional to eye position. Ideally, eye rotation axis is aligned with head rotation axis and VOR gain (eye velocity/head velocity) for horizontal and vertical head rotations is almost 1. The VOR gain, however, for torsional head rotations is smaller and about 0.7.

Translated title of the contributionVestibulo-oculomotor reflex recording using the scleral search coil technique. Review of peripheral vestibular disorders
Original languageSpanish
Pages (from-to)321-326
Number of pages6
JournalActa Otorrinolaringologica Espanola
Volume58
Issue number7
DOIs
StatePublished - Aug 1 2007

Keywords

  • Peripheral vestibular disorders
  • Scleral search coil
  • Vestibulo-oculomortor reflex

ASJC Scopus subject areas

  • Otorhinolaryngology

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