Effect of modulated at different low frequencies microwave radiation on human EEG View Full Text


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Article Info

DATE

2009-01-29

AUTHORS

Hiie Hinrikus, Maie Bachmann, Jaanus Lass, Viiu Tuulik

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. More... »

PAGES

215-219

References to SciGraph publications

  • 2005-12. Effect of 450 MHz Microwave Modulated with 217 Hz on Human EEG in Rest in ENVIRONMENT SYSTEMS AND DECISIONS
  • Identifiers

    URI

    http://scigraph.springernature.com/pub.10.1007/s10669-009-9215-7

    DOI

    http://dx.doi.org/10.1007/s10669-009-9215-7

    DIMENSIONS

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