P9 in median nerve SEPs is a junctional potential generated by the change of the volume conductor size between trunk and neck

Electroencephalography and Clinical Neurophysiology/Evoked Potentials Section Pub Date : 1998-11-01 DOI:10.1016/S0168-5597(98)00039-2

Atsuko Mochizuki , Masahiro Sonoo , Teruo Shimizu , Makoto Iwata

引用次数: 4

Abstract

Objectives: We aimed to investigate the origin of P9 in median SEPs by applying the junctional potential theory.

Methods: We studied the distribution over the body surface with contralateral shoulder reference in 4 normal subjects.

Results: A stationary potential field P9/tN9 (=truncal N9) was recorded: P9 over head and neck (the smaller part), tN9 over trunk (the larger part), the boundary being located between trunk and neck. This polarity agreed with that expected from simulation studies.

Conclusions: P9 is a junctional potential generated by the change of the volume conductor size between trunk and neck.

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正中神经sep中的P9是干颈间体积导体大小变化所产生的连接电位

目的:应用连接电位理论探讨中位sep中P9的起源。方法:以对侧肩为参照，对4例正常人进行体表分布研究。结果:记录到一个稳定的电位场P9/tN9(=截尾N9)， P9在头颈部上方(较小部分)，tN9在躯干上方(较大部分)，边界位于躯干与颈部之间。这种极性与模拟研究的预期一致。结论:P9是躯干与颈部间体积导体尺寸变化所产生的连接电位。

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/Evoked Potentials Section

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