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Article Publish Status: FREE
Abstract Title:

Radiofrequency signal affects alpha band in resting electroencephalogram.

Abstract Source:

J Neurophysiol. 2015 Apr 1 ;113(7):2753-9. Epub 2015 Feb 18. PMID: 25695646

Abstract Author(s):

Rania Ghosn, Lydia Yahia-Cherif, Laurent Hugueville, Antoine Ducorps, Jean-Didier Lemaréchal, György Thuróczy, René de Seze, Brahim Selmaoui

Article Affiliation:

Rania Ghosn

Abstract:

The aim of the present work was to investigate the effects of the radiofrequency (RF) electromagnetic fields (EMFs) on human resting EEG with a control of some parameters that are known to affect alpha band, such as electrode impedance, salivary cortisol, and caffeine. Eyes-open and eyes-closed resting EEG data were recorded in 26 healthy young subjects under two conditions: sham exposure and real exposure in double-blind, counterbalanced, crossover design. Spectral power of EEG rhythms was calculated for the alpha band (8-12 Hz). Saliva samples were collected before and after the study. Salivary cortisol and caffeine were assessed by ELISA and HPLC, respectively. The electrode impedance was recorded at the beginning of each run. Compared with the sham session, the exposure session showed a statistically significant (P<0.0001) decrease of the alpha band spectral power during closed-eyes condition. This effect persisted in the postexposure session (P<0.0001). No significant changes were detected in electrode impedance, salivary cortisol, and caffeine in the sham session compared with the exposure one. These results suggest that GSM-EMFs of a mobile phone affect the alpha band within spectral power of resting human EEG.

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