Basically, vestibular evoked myogenic potential (VEMP) testing is applicable to all subjects who require evaluation of vestibular functions. However, it is difficult to obtain responses from subjects who are not cooperative during the testing and who for some reason cannot contract the sternocleidomastoid muscle (SCM) during the recording (e.g., a comatose patient). In subjects with air-bone gaps in pure-tone audiometry, special care is required because responses are abolished or decreased owing to conductive hearing loss [1, 2].


Sternocleidomastoid Muscle Tone Burst Conductive Hearing Loss Vestibular Evoke Myogenic Potential Myogenic Potential 
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