Galvanic stimulation evokes short-latency EMG responses in sternocleidomastoid which are abolished by selective vestibular nerve section

Electroencephalography and Clinical Neurophysiology/Electromyography and Motor Control Pub Date : 1998-12-01 DOI:10.1016/S0924-980X(98)00033-2

S.R.D. Watson , P. Fagan , J.G. Colebatch

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引用次数: 46

Abstract

Objective: To describe vestibulocollic responses in sternocleidomastoid (SCM) evoked by transmastoid galvanic (DC) stimulation.

Methods: We studied the averaged responses in the unrectified EMG of SCM to transmastoid galvanic stimulation (5 mA/2 ms) and also to 100 dB clicks. Two patients with Meniere's disease were studied both before and after unilateral selective vestibular nerve section.

Results: Transmastoid galvanic stimulation produced a positive-negative biphasic EMG response at short latency in the SCM ipsilateral to the side of cathode placement, which resembled that which followed vestibular activation by loud clicks (p13/n23). Selective unilateral vestibular nerve section abolished this galvanic-evoked response.

Conclusions: Galvanic-evoked vestibulocollic responses can be recorded in SCM. This is a new method of studying vestibular reflex function which may have application in the clinical assessment of vestibular disorders.

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电刺激引起胸锁乳突肌的短潜伏期肌电反应，选择性前庭神经切断可消除这种反应

目的:探讨经乳突电刺激引起的胸锁乳突肌(SCM)前庭结肠反应。方法:研究经乳突肌电刺激(5 mA/2 ms)和100db滴答声对SCM未校正肌电图的平均反应。对2例梅尼埃病患者进行单侧选择性前庭神经切断术前后的研究。结果:经乳突电刺激在与阴极放置侧同侧的SCM中产生了短潜伏期的正-负双相肌电图反应，这与前庭通过响亮的咔哒声激活后的反应相似(p13/n23)。选择性单侧前庭神经切除可消除这种电诱发反应。结论:电诱发的前庭结肠反应可在SCM上记录。这是一种研究前庭反射功能的新方法，可用于前庭功能障碍的临床评价。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Electroencephalography and Clinical Neurophysiology/Electromyography and Motor Control

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