Related Experiment Video
Updated: Apr 27, 2026
Three Dimensional Vestibular Ocular Reflex Testing Using a Six Degrees of Freedom Motion Platform
Published on: May 23, 2013
Optimizing ocular vestibular evoked myogenic potential testing for superior semicircular canal dehiscence syndrome:
M Geraldine Zuniga1, Marcela Davalos-Bichara, Michael C Schubert
1Department of Otolaryngology, Vanderbilt University Medical Center, Nashville, Tenn., USA.
Objective:
To compare the sensitivity and specificity of ocular vestibular evoked myogenic potentials (oVEMPs) using 2 electrode montages for the diagnosis of superior canal dehiscence syndrome (SCDS).
Subjects:
16 SCDS patients (17 affected-SCDS ears, 15 contralateral-SCDS ears) and 12 controls (24 ears).
Methods:
oVEMPs were recorded in response to 500-Hz tone bursts using 2 electrode montages. For both montages the active electrode was placed approximately 5 mm below each eye and a ground electrode on the sternum. For montage 1 (standard), the reference electrode was centered 2 cm below each active electrode. For montage 2, the reference electrode was placed on the chin.
Results:
For either montage, the separation between oVEMP amplitudes in affected-SCDS ears and controls was significant (p < 0.001), with excellent sensitivity and specificity (>90%).
Conclusion:
oVEMP recordings with the standard montage remain a reliable method for evaluation of SCDS.
