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首页> 外文期刊>Journal of Neuroscience Methods >Test-retest reliability of motor evoked potentials (MEPs) at the submental muscle group during volitional swallowing.
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Test-retest reliability of motor evoked potentials (MEPs) at the submental muscle group during volitional swallowing.

机译：吞咽过程中，脑下肌群运动诱发电位（MEP）的重测信度。

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摘要

Motor evoked potentials (MEPs) recorded from pharyngeal and anterior hyo-mandibular (submental) muscles at rest have been used to evaluate treatment effects on neural pathways underlying swallowing. This study documents a novel methodological approach of recording reliable intra- and inter-session MEPs at the submental muscle group during task-related volitional swallowing. MEPs were elicited by single-pulse transcranial magnetic stimulation (TMS), triggered by a custom-made system when a pre-set level of surface electromyographic activity in the target muscles was breached. Fifteen MEPs were recorded during each of four sessions. Intraclass correlation coefficients (ICCs) were used to assess test-retest reliability within and across sessions for blocks of 3, 5, 10 and 15 trials. Highly reliable intra-session reliability was achieved, maximal for blocks of five trials (0.915). Inter-session reliability varied between 0.474 (three trials per block) and 0.909 (10 trials per block). Surface electromyography-triggered TMS allows reliable measurement of MEP amplitude at the submental muscle group within and across sessions when muscles are pre-activated during volitional swallowing. This methodology will be useful for future investigations on the effects of pathology and modulation of swallowing neural pathways.
机译：静止时咽和前下颌骨（下颌）肌肉记录的运动诱发电位（MEP）已用于评估吞咽后神经通路的治疗效果。这项研究记录了一种新的方法学方法，该方法可在任务相关的自愿吞咽过程中记录下皮层肌肉群的可靠的会话内和会话间MEP。当目标肌肉中的表面肌电图活动达到预设水平时，通过定制系统触发单脉冲经颅磁刺激（TMS）引发MEP。在四个阶段的每个阶段记录了15个MEP。使用类内相关系数（ICC）评估3、5、10和15个试验组内和试验间的重测信度。达到了高度可靠的会话间可靠性，这对于五个试验的组来说最高（0.915）。会话间的可靠性在0.474（每个区块三个试验）和0.909（每个区块10个试验）之间变化。当肌肉在自愿吞咽过程中被预先激活时，表面肌电图触发的TMS可以可靠地测量会话期间内和会话之间的网膜下肌群的MEP振幅。这种方法学将对未来病理学和吞咽神经通路调节作用的研究有用。

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