NDLI: Effect of modulated at different low frequencies microwave radiation on human EEG

Content Provider	Springer Nature Link
Author	Hinrikus, Hiie Bachmann, Maie Lass, Jaanus Tuulik, Viiu
Copyright Year	2009
Abstract	This study is aimed to clarify whether effect of low-level microwave radiation on human brain differs at different modulation frequencies. Resting EEG recordings were done on different groups of healthy volunteers. The 450 MHz microwave radiation modulated at 40 and 70 Hz (15 subjects) and 217 and 1,000 Hz (19 subjects) frequencies was applied. The results of our previous study at 7, 14 and 21 Hz modulation were included into analysis. Ten cycles of the exposure (1 min off and 1 min on) at each fixed modulation frequencies were applied. The field power density at the scalp was always 0.16 mW/cm2. Our results showed that microwave exposure increased the EEG energy at EEG frequencies lower or close to the modulation frequency. No effect was detected at EEG frequencies higher than the modulation frequency. Statistically significant changes were caused by exposure in the EEG alpha and beta frequency bands; no significant effect was detected in the theta band. Our results suggest that telecommunication devices with complex spectrum of modulation frequencies like mobile phone can affect all human EEG frequency bands.
Starting Page	215
Ending Page	219
Page Count	5
File Format	PDF
ISSN	02511088
Journal	Environmentalist
Volume Number	29
Issue Number	2
e-ISSN	15732991
Language	English
Publisher	Springer US
Publisher Date	2009-01-29
Publisher Place	Boston
Access Restriction	Subscribed
Subject Keyword	EMF effect Modulation Microwave radiation EEG rhythms Frequency dependence Environmental Management Economic Geology Ecology Nature Conservation
Content Type	Text
Resource Type	Article
Subject	Environmental Science

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