ISSN 1308-7649 | E-ISSN 2148-3817
Original Article
Increased Velocity Storage in Subjects with Meniere’s Disease
1 Department of Otolaryngology, Hospital Universitario y Politécnico La Fe, Valencia, Spain.  
2 Department of Otolaryngology, Hospital Universitario La Fe, Valencia, Spain.  
3 Department of Neurology, Hospital Universitario y Politécnico La Fe, Valencia, Spain  
J Int Adv Otol 2016; 12: 87-91
DOI: 10.5152/iao.2016.1947
Key Words: Velocity storage, vestibular, eye movement, vestibulo-ocular reflex, Meniere disease
Abstract

OBJECTIVE: Velocity storage mechanism is a multisensory rotation estimator; it compensates for errors in the information provided by the peripheral vestibular organs by means of an adjustment in the duration of the vestibular signal. The aim of this study was to determine the activity of the velocity storage mechanism in the presence of a labyrinthine disorder, using galvanic vestibular stimulation to cause direct activation of the vestibular afferent neurons.


MATERIALS and METHODS
: Forty-one subjects with definite Meniere’s disease (MD) and 36 healthy volunteers were evaluated using a 20-s galvanic vestibular stimulation.


RESULTS
: We found a post-stimulus nystagmus overshoot exclusively in subjects with MD (47% in subjects with unilateral disease and 82% in subjects with bilateral disease), but no overshoot in healthy subjects.

 

CONCLUSION: Because post-stimulus nystagmus overshoot is caused by the velocity storage mechanism, this finding suggests an increase in the velocity storage in subjects with a labyrinthine disease. 

Key Words
Authors
All
Author's Corner
Reviewer's Corner
Survey
AVES | Copyright © 2018 The European Academy of Otology and Neurotology | Latest Update: 19.04.2018