After-effect induced by microwave radiation in human electroencephalographic signal: a feasibility study

International Journal of Radiation Biology
Maie BachmannHiie Hinrikus

Abstract

This feasibility study is aimed to clarify the possibility of detection of microwave radiation (MWR)-induced event related potential (ERP) in electroencephalographic (EEG) signal. To trigger onset and offset effects in EEG, repetitive MWR stimuli were used. Four 30-channel EEG recordings on a single subject were performed, each about one month apart. The subject was exposed to 450 MHz MWR modulated at 40 Hz at the 1 g peak spatial average specific absorption rate of 0.3 W/kg. During a recording, 40 cycles of 30 s on-off MWR exposure were used. The artifact-free responses to 126 MWR-ON stimuli and 134 MWR-OFF stimuli were averaged over stimuli and channels. Regarding EEG signals locked to MWR-OFF stimulus, the enhanced signal level at alpha frequency band and about twice higher signal to noise ratio at 200 to 440 ms after the stimulus have been detected. No remarkable response in EEG signals locked to MWR-ON stimulus. The detection of offset effect confirms that there should be an imprint generated by MWR in brain. The results of this preliminary study provide evidence for the detection of MWR-induced ERP in EEG signal and encourage further research in this direction.

References

Jun 26, 2004·Science·György Buzsáki, Andreas Draguhn
Aug 10, 2004·Bioelectromagnetics·Christian HaaralaHeikki Hämäläinen
Aug 17, 2005·Neuroscience Research·G CurcioL De Gennaro
Dec 7, 2007·International Journal of Radiation Biology·Hiie HinrikusViiu Tuulik
May 20, 2008·Journal of Vision·Xin HuangMichael A Paradiso
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Apr 12, 2011·Bioelectromagnetics·Jukka JuutilainenJonne Naarala
Sep 15, 2011·International Journal of Radiation Biology·Hiie HinrikusJaanus Lass
May 19, 2018·International Journal of Radiation Biology·Hiie HinrikusJaanus Lass

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Citations

Aug 18, 2021·International Journal of Radiation Biology·Hiie HinrikusMaie Bachmann

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