Frankenhaeuser-Huxley modelを用いた数値解析による複数周波数の電流印加での神経興奮現象の閾値推定

カテゴリ: 論文誌(論文単位)

グループ名: 【A】基礎・材料・共通部門

発行日: 2019/12/01

タイトル(英語): Numerical Estimation on the Threshold of Nerve Excitation Phenomena by the Application of Current with Multiple Frequencies based on Frankenhaeuser-Huxley Model

著者名: 牧野　佳（首都大学東京），鈴木　敬久（首都大学東京），多氣　昌生（首都大学東京）

著者名(英語): Kei Makino (Tokyo Metropolitan University), Yukihisa Suzuki (Tokyo Metropolitan University), Masao Taki (Tokyo Metropolitan University)

キーワード: 複数周波数電磁界ばく露，神経興奮閾値，ICNIRPガイドライン，Frankenhaeuser-Huxley model　　multiple frequencies electromagnetic field exposure，nerve excitation threshold，ICNIRP guidelines，Frankenhaeuser-Huxley model

要約(英語): ICNIRP guidelines describes addition equation for electrical stimulation, relevant for frequencies up to 10 MHz, with respect to simultaneous exposure to magnetic fields with multiple frequencies. However, there is no literature which estimated the threshold of electromagnetic field exposure of multiple frequencies. Therefore, the purpose of this paper is to estimate the threshold of nerve excitation caused by the application of current with multiple frequencies. In this paper, combinations of two kinds of frequencies f1 and f2 were investigated for the applying current. The Frankenhaeuser-Huxley model was employed to analyze nerve excitation effects. The ratios of the applied current value to the threshold current value were kept at the same value for each frequency f1 and f2, respectively. Consequently, the threshold did not exceed if the philosophy of the addition equation of ICNIRP was satisfied, with any combination of f1 and f2 analyzed in this paper. Especially when f1=2f2 and f2=2f1, the threshold became a high value. By analyzing the amount of the accumulated electric charge, which is a factor causing the action potential, it was demonstrated that it is difficult to accumulate the electric charge when f1=2f2 and f2=2f1.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.139 No.12 （2019） 特集：電磁環境評価技術に関する論文

本誌掲載ページ: 672-678 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejfms/139/12/139_672/_article/-char/ja/