Basic Studies on Mechanism of Biological Effects of Extremely Low Frequency Electric Fields

极低频电场生物效应机制的基础研究

• 批准号: 10837014
• 负责人: YAMASITA Masaji
• 金额: $ 1.02万
• 依托单位: Hokkaido Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1998
• 资助国家: 日本
• 起止时间: 1998 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10837014/
• 关键词: ELF; electric field; arousal level; autonomous nerve; skin temperature; telemetry; biosignal; dosimetry; 体温調節; 心拍変動; 交感神経; 局所曝露; 末梢血流量; 電界; 脳波; 心電図; 副交感神経; 体温

Using electric field exposure equipment that it receives the authorization of Ministry of Health and Welfare and has already confirmed of the safety, EEG, ECG, blood pressure, peripheral skin temperature in exposing ELF( Extremely Low Frequency) electric field on human body were measured simultaneously and analyzed.The EEG was measured and the variation of each spectral power of σ, θ, α, β rhythm was analyzed, and thereafter the variation of arousal level was evaluated. The result was obtained as follows. The arousal level dropped in amplitude index of the BEG analysis because of the low-frequency-component of the BEG increasing after the electric field exposure.When a electric field was exposed to a subject, the body hair was vibrating. Hence the subject would detected the vibration as a field exposure, and therefore psychological effect might affect the subject. To verify the possibility of this effect, the following experiment was introduced. To covering the sense of vibrating hair by field exposure and maintaining the arousal level long time, fluctuating wind and white noise sound were presented to the subject in the same experiments. As a result, the arousal level tended to rise under electric field exposure, and it returns in original level after the exposure.Next, hand skin temperature, BEG, ECG and blood pressure were analyzed. Although hand skin temperature was upward trend before electric field exposure, it was changed to the declining tendency during the field exposure, and it intensified the declining tendency still more after the field exposure. The activity of sympathetic and parasympathetic nerve systems were analyzed based on the spectrum analyses of heart rate variability. During and after the electric field exposure, the parasympathetic nerve activity was weakened but the sympathetic nerve activity was activated.

使用IT卫生和福利部的电场设备，并确认了脑电图，ECG，血压，外周的皮肤温度，以暴露精灵（极低的频率）电场，并进行了分析。评估了σ，θ，β节奏的每个光谱的变化，因为在电场曝光后增加了beg分析的振幅，结果的唤醒水平下降了。遗嘱是一个受试者的振动。在同一实验中向受试者提供了波动和白色的声音。电场暴露于田间的趋势下降的趋势越来越多。

项目成果

Masaji Yamamoto: "Effects of a strong Elf Electric Field on the Human Electroencephalogram"Proc. Of the International Symposium on Electromagnetic Compatibility. 1. 159-164 (1998)

山本正治：“强精灵电场对人类脑电图的影响”Proc。

M.Yamashita,K.Osaki and K.Shimizu: "Effects of a Strong ELF Electric Field on the Human Electroencephalogram" Proceedings of International Symposium on Electromagnetic Compatibility. Volume 1. 159-164 (1998)

M.Yamashita、K.Osaki 和 K.Shimizu：“强 ELF 电场对人体脑电图的影响”国际电磁兼容性研讨会论文集。

山下政司、大崎和夫、清水孝一: "強電界環境中での生体信号の計測と解析" 医用電子と生体工学. 36巻特別号. 361 (1998)

Masashi Yamashita、Kazuo Osaki、Koichi Shimizu：“强电场环境中生物信号的测量和分析”《医疗电子与生物工程》第 36 卷特刊（1998 年）。

山下政司、清水孝一: "ELF電界中での生体信号の計測と解析" 電気関係学会北海道支部連合大会講演論文集. 346 (1998)

Masashi Yamashita，Koichi Shimizu：“ELF电场中生物信号的测量和分析”电气工程学会北海道分会会议记录346（1998）。