Related Experiment Video
Updated: Aug 18, 2026
Three Dimensional Vestibular Ocular Reflex Testing Using a Six Degrees of Freedom Motion Platform
Published on: May 23, 2013
Lesion site in idiopathic bilateral vestibulopathy: a galvanic vestibular-evoked myogenic potential study
Chisato Fujimoto1, Shinichi Iwasaki, Masaki Matsuzaki
1Department of Otolaryngology, University of Tokyo, Fujimi, Tokyo, Japan.
Conclusion:
The result suggests that patients with idiopathic bilateral vestibulopathy may have nerve lesions when the inferior nerve system is affected, while the inferior vestibular nerve system may be spared.
Objective:
To clarify the lesion site in idiopathic bilateral vestibulopathy, an acquired bilateral vestibulopathy of unknown cause.
Material And Methods:
Two 75-year-old males diagnosed with idiopathic bilateral vestibulopathy were enrolled. Both showed absent or highly decreased responses on the caloric test on both sides. They underwent vestibular-evoked myogenic potential (VEMP) testing by means of acoustical and electrical stimulation. As acoustic stimulation, 95 dB nHL clicks and short tone bursts (500 Hz) were presented, while 3 mA (1 ms) short-duration galvanic stimuli were presented as electrical stimulation. Responses were recorded on the sternocleidomastoid muscles.
Results:
Both patients showed unilateral absence of VEMPs with both acoustic and short-duration galvanic stimuli.
