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KMID : 1235520150140010009
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Research in Vestibular Science
2015 Volume.14 No. 1 p.9 ~ p.14
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The Principle and Methodology of Vestibular Evoked Myogenic Potential
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Lee Min-Young
Suh Myung-Whan
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Abstract
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Vestibular evoked myogenic potential (VEMP) has developed as a broadly applied vestibular function test in clinics from its introduction in 1992. In the past, there was only one well known VEMP protocol, which is cervical VEMP, however recently ocular VEMP is also popular. Therefore, clarifying the VEMP recording protocol (cervical VEMP or ocular VEMP) before discussing the VEMP result has become essential. There is considerable difference regarding this VEMP test from other vestibular function tests. VEMP is thought to be assessing the functions of the otolith organs (utricle and saccule) which are evoked by acoustic stimulus. Cervical VEMP is valuable since this is the only available test method which could speculate the function of the saccule and inferior vestibular nerve. Still, there’s less clearly understood part regarding the central pathway of VEMP. However, many clinicians and researchers participating in vestibular research speculate that this functional test will have a more dominant role in the near future. Here we describe the basic principles and methodological considerations regarding VEMP recording.
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KEYWORD
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Vestibular function tests, Saccule and utricle, Evoked potentials, Vestibular evoked myogenic potentials
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