1. Examples of oVEMP responses to bone-conducted vibration at Fz in healthy subjects (A) and a patient with a complete unilateral vestibular loss (B). In the patient, there is no detectable oVEMP n10 beneath the contralesional eye, whereas the oVEMP n10 beneath the ipsilesional eye is of normal amplitude. (C) The asymmetry ratios (ARs) for Fz stimulation for healthy subjects (open circles), patients after unilateral vestibular loss (uVL) (crosses), and patients diagnosed with unilateral superior vestibular neuritis (closed circles). The average AR for healthy subjects is about 11%, and all 67 healthy subjects have ARs less than 40%. On the other hand, all patients had ARs greater than 40% with no systematic difference between unilateral loss and superior vestibular neuritis. (A,B) Reprinted from Clinical Neurophysiology, Vol 121, Curthoys18 “A critical review of the neurophysiological evidence underlying clinical vestibular testing using sound, vibration and galvanic stimuli,” 2010, with permission from Elsevier. (C) Reprinted from Clinical Neurophysiology, Vol 120, Iwasaki et al,114 “The role of the superior vestibular nerve in generating ocular vestibular-evoked myogenic potentials to bone conducted vibration at Fz,” 2009, with permission from Elsevier.
Source: Otolith Function Tests, Vestibular Rehabilitation
Citation: Herdman SJ, Clendaniel RA. Vestibular Rehabilitation; 2014 Available at: Accessed: October 07, 2017
Copyright © 2017 McGraw-Hill Education. All rights reserved