Lyskov E, Juutilainen J, Jousmaki V, Hänninen O, Medvedev S, Partanen J
Human Brain Institute, Russian Academy of Science, St. Petersburg.
Int J Psychophysiol. 1993 May;14(3):227-31. doi: 10.1016/0167-8760(93)90036-o.
The influence of an extremely-low-frequency (ELF) magnetic field on the bioelectrical processes of brain and performance was studied by EEG spectral analysis, auditory-evoked potentials (AEP), reaction time (RT) and target-deletion test (TDT). Fourteen volunteers were exposed for 15 min to an intermittent (1 s on/off) 45-Hz magnetic field at 1000 A/m (1.26 mT). Each person received one real and one sham exposure. Statistically significant increases in spectral power through alpha- and beta-bands, as well as in mean frequency of the EEG spectrum were observed after magnetic field exposure. Field-dependent changes of N100 were also revealed. No changes in the amplitudes or latencies of the earlier peaks were observed. No direct effects on RT, nor on TDT performance were seen. However, practice effects on RT (decrease of RT in the course of the test-sessions) seemed to be interrupted by exposure to the magnetic field.
通过脑电图频谱分析、听觉诱发电位（AEP）、反应时间（RT）和目标删除测试（TDT），研究了极低频（ELF）磁场对大脑生物电过程和行为表现的影响。14名志愿者暴露于强度为1000 A/m（1.26 mT）、频率为45 Hz的间歇性（1秒开/关）磁场中15分钟。每个人都接受了一次真实暴露和一次假暴露。磁场暴露后，观察到α和β波段的频谱功率以及脑电图频谱的平均频率有统计学意义的增加。还发现了N100的场依赖变化。未观察到早期峰值的幅度或潜伏期有变化。未发现对反应时间或目标删除测试表现有直接影响。然而，磁场暴露似乎打断了反应时间的练习效应（在测试过程中反应时间缩短）。
