Jacome D E, Risko M
Clin Electroencephalogr. 1986 Apr;17(2):105-9.
Lightning is highly prevalent in South Florida. The artifact caused by lightning in EEG recordings is of variable duration and seen as abrupt deflection of pens, sometimes followed by sustained pen drift and slow recovery mimicking amplifier overload as caused by rapid unplugging and plugging of the equipment power cable from the wall outlet. Since this artifact was associated to hospital light flickering and was recorded independent of machine location and orientation, we believe it is secondary to extreme brief Mains voltage fluctuations, probably due to horizontal lightning electric field effects rather than radio or electromagnetic interference generated by lightning.
闪电在南佛罗里达州极为常见。脑电图记录中由闪电引起的伪迹持续时间各异，表现为笔的突然偏转，有时随后会出现持续的笔漂移和缓慢恢复，类似于设备电源线从墙上插座快速插拔所导致的放大器过载。由于这种伪迹与医院灯光闪烁有关，且与机器位置和方向无关，我们认为它是由极短暂的市电电压波动引起的，可能是由于水平闪电电场效应，而非闪电产生的无线电或电磁干扰。
