Vestibular-Evoked Myogenic Potentials: Sound- and Bone-Conducted Stimuli and Clinical Applications.
- Author:
Eui Joong KIM
1
;
Sun Young OH
Author Information
1. Gunsan Public Health Center, Gunsan, Korea.
- Publication Type:Review
- Keywords:
Vestibular evoked myogenic potentials (VEMPs);
Air-conducted sound (ACS);
Bone-conducted vibration (BCV);
Otoliths;
Saccule;
Utricle
- MeSH:
Electrodes;
Muscles;
Neurotology;
Otolithic Membrane;
Reflex;
Saccule and Utricle;
Vestibular Evoked Myogenic Potentials;
Vibration
- From:Journal of the Korean Neurological Association
2014;32(4):231-239
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
Vestibular stimulation by air-conducted sound (ACS), bone-conducted vibration (BCV), or electrical currents (galvanic stimulation) elicits vestibular evoked myogenic potentials (VEMPs) that are now widely used to assess otolith function. Conventional cervical VEMPs, which are a manifestation of the vestibulocollic reflex, measure electromyographic activity from surface electrodes placed over the tonically activated sternocleidomastoid muscles. VEMPs can also be recorded from the extraocular muscles using surface electrodes placed over the inferior oblique and inferior rectus muscles, known as ocular VEMPs (oVEMPs). oVEMPs are a manifestation of the vestibulo-ocular pathways. We describe herein the neurophysiological properties of VEMPs obtained in response to ACS and BCV stimulation, and outline the known characteristics of VEMPs in central and peripheral disorders commonly encountered in neuro-otology clinics.
