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Review
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The Principle and Methodology of Vestibular Evoked Myogenic Potential
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Min Young Lee, Myung Whan Suh
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Res Vestib Sci. 2015;14(1):9-14.
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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.