Related Experiment Video
Updated: Nov 10, 2025

Three Dimensional Vestibular Ocular Reflex Testing Using a Six Degrees of Freedom Motion Platform
Published on: May 23, 2013
Acute vestibulopathy with simultaneous bilateral involvement of the vestibulo-ocular reflex limited to the
Maiko Yamakawa1, Kayoko Kabaya1, Akina Fukushima2
1Department of Otolaryngology-Head and Neck Surgery, Nagoya City University Graduate School of Medical Science, 1 Kawaumi Mizuho-Ku, Nagoya, Aichi, 467-8601, Japan.
Abstract:
We report a novel type of idiopathic bilateral vestibulopathy with acute simultaneous involvement of the vestibulo-ocular reflex limited to the low-frequency range. A 64-year-old female presented with dizziness, oscillopsia, and difficulty walking. She did not experience rotatory vertigo and did not show any nystagmus. Vestibular function tests showed absent caloric responses in both ears, while vestibulo-ocular reflex (VOR) gains in the video head impulse test (vHIT) were preserved in all six semicircular canals. Cervical and ocular vestibular evoked myogenic potentials in response to air-conducted sound were absent on both sides. Since the caloric test and vHIT measures low-frequency and high-frequency VOR, respectively, we diagnosed the patient as having a bilateral VOR deficit limited to the low-frequency range. During a 1-year follow-up with vestibular rehabilitation, the subjective symptom of dizziness gradually recovered while recovery of vestibular function was minimal.
Related Concept Videos
The Vestibular System
Equilibrium and Balance
The Auditory Ossicles
The aptly named stapes look very much like a stirrup. The three ossicles are unique to mammals, and each plays a role in...
The Cochlea

