Critical Reviews™ in Biomedical Engineering

ISSN for PRINT: 0278-940X

For Online Access

Best Paper Award Selection - Editorial Board Site

2000, Volume28

Issue 1&2

356 pages

Issue price - $532.00

N. N. Lebedeva
Doctor of Biological Sciences, Principal Scientist at the Institute of Higher Nerve Activity and Neurophysiology, Russian Academy of Sciences, Moscow, Russia

A. V. Sulimov
Ph.D., Senior Researcher at the Institute of Higher Nerve Activity and Neurophysiology, Russian Academy of Sciences, Moscow, Russia

O. P. Sulimova
Ph.D., Researcher at the Institute of Higher Nerve Activity and Neurophysiology, Russian Academy of Sciences, Moscow, Russia

T. I. Kotrovskaya
Ph.D., Researcher at the "Extremely High Frequency" Medical and Technical Association, Moscow, Russia

T. Gailus
Ph.D., Senior researcher, Biological Department Head at the Deutsche Telekom AG, Germany

24 volunteers participated in the experiments. The investigation of EEG reactions to cellular phone (EMP frequency 902.4 MHz and intensity 0.06 mW/cm²) was conducted. Two experiments were performed with each subject — cellular phone exposure and Placebo. Duration of the experiment was 60 min: 15 min — background; 15 min — EMF exposure or Placebo; 30 min — afterex-posure. EEG was recorded in 16 standard leads with "eyes орen" and "eyes closed". Special software with non-linear dynamics was developed for EEG analyses. One parameter, multichannel (global) correlation dimension, was calculated. The changes of these parameters can be evidence of brain functional state changes. As a result of EEG record processing, a significant increase of global correlation dimension during the exposure and afterexposure period was discovered, more pronounced in the case of "eyes closed". That can be viewed as the manifestation of cortex activation under phone EMF exposure.

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