Human resting-state EEG and radiofrequency GSM mobile phone exposure: The impact of the individual alpha frequency

Authors: Jasmina Wallace, Lydia Yahia-Cherif, Christophe Gitton, Laurent Hugueville, Jean-Didier Lemaréchal, Brahim Selmaoui

Year: 2021 Nov 19

Category: Radiobiology

Journal: Int J Radiat Biol

DOI: 10.1080/09553002.2021.2009146

URL: https://pubmed.ncbi.nlm.nih.gov/34797205/

Abstract

Overview

The investigation focuses on the effects of GSM mobile phone exposure on brain activity, particularly through the lens of resting-state EEG impacts, emphasizing Alfa band modulation.

Purpose

  • The primary aim of the study is to examine the radiofrequency electromagnetic fields (RF-EMF) and their influence on alpha band power spectral density (PSD) during EEG analysis, partly to account for variability between individual physiological brain states.

Materials & Methods

  • 21 healthy volunteers participated in a study using a double-blind, randomized, and counterbalanced crossover design.
  • The subjects were exposed to a real or sham GSM mobile phone emitting at 900 MHz, analyzing differences in alpha band frequencies during EEG in both eyes-open and eyes-closed conditions.

Findings

  • Experiments showed changes in the alpha band EEG power during exposure but were not statistically significant and did not establish a clear sensitivity to RF-EMF based on individual alpha frequency variability.

Conclusion

The conclusion highlights the absence of significant alpha band activity modulation due to RF-EMF in a resting state and suggests a potential delay post-exposure might reveal more about EEG spectral power modulations.

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