Yu Hongli, Xu Guizhi, Yang Ruifeng, Yang Shuo, Geng Yuehua, Chen Yajing, Li Wenwen, Sun Hui
Province-Ministry Joint Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability, Hebei University of Technology, Tianjin 300130, China.
Annu Int Conf IEEE Eng Med Biol Soc. 2009;2009:3445-8. doi: 10.1109/IEMBS.2009.5334641.
Two acupuncture manipulations are clinically used: manual manipulation and electrical acupuncture. There is little published on the EEG changes during magnetic stimulation on an acupuncture site. In this study, EEG data in response to magnetic stimulation on HeGu (LI 4) acupoint were measured to determine whether magnetic acupoint stimulation might modulate ongoing EEG or not. Eighteen healthy volunteers (13 male, 5 female) 20 to 35 years old were chosen in this experiment, with consent obtained before the study. The highest evoked potential was recorded in FCZ electrode, at about 140-170 ms (P150) after acupoint stimulation, but not mock point stimulation. Comparison of the somatosensory-evoked potentials in response to acupoint stimulation and mock point stimulation showed that P150 was specific to acupoint stimulation. With regard to the location of P150 in the human brain, we suggest that magnetic stimulation on HeGu acupoint would affect specific brain areas compared with the mock point. The difference in the anatomical structure of acupoint and non-acupoint may explain the specific acupoint-brain correlation, and P150 may be a characteristic activation in response to acupoint afferent.
手法针刺和电针。关于针刺部位磁刺激期间脑电图（EEG）变化的文献报道很少。在本研究中，测量了对合谷穴（LI 4）进行磁刺激时的EEG数据，以确定穴位磁刺激是否可能调节正在进行的EEG。本实验选取了18名年龄在20至35岁之间的健康志愿者（13名男性，5名女性），研究前获得了他们的同意。在穴位刺激后约140 - 170毫秒（P150）时，在FCZ电极记录到最高诱发电位，但假穴刺激时未记录到。对穴位刺激和假穴刺激的体感诱发电位进行比较表明，P150是穴位刺激所特有的。关于P150在人脑中的位置，我们认为与假穴相比，对合谷穴进行磁刺激会影响特定的脑区。穴位和非穴位解剖结构的差异可能解释了特定的穴位 - 脑相关性，并且P150可能是对穴位传入反应的特征性激活。
