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Mobile phone emission modulates interhemispheric functional coupling of EEG alpha rhythms
Fabrizio Vecchio1, Claudio Babiloni, Florinda Ferreri
1Dipartimento di Fisiologia Umana e Farmacologia, Università degli Studi di Roma La Sapienza, P le Aldo Moro 5, Rome, Italy. fabrizio.vecchio@uniroma1.it
The European Journal of Neuroscience
|April 17, 2007
Summary
Electromagnetic fields from mobile phones alter brainwave synchronization between hemispheres. This study shows GSM signals impact frontal and temporal brain connectivity, affecting neural communication.
Area of Science:
- Neuroscience
- Biophysics
- Electromagnetic Field (EMF) Research
Background:
- Interhemispheric synchronization of cerebral rhythms is crucial for brain information processing.
- Mobile phone usage is widespread, necessitating research into potential biological effects.
- Electromagnetic fields (EMFs) emitted by mobile phones are a growing area of health concern.
Purpose of the Study:
- To investigate the impact of mobile phone electromagnetic fields (EMFs) on interhemispheric synchronization of brain rhythms.
- To analyze changes in electroencephalographic (EEG) spectral coherence during exposure to Global System for Mobile Communications (GSM) signals.
- To determine if EMFs from mobile phones affect functional connectivity between brain hemispheres.
Main Methods:
- A double-blind, crossover study involving ten subjects exposed to real GSM signals and sham stimulation.
- Electroencephalographic (EEG) recordings were conducted with a mobile phone positioned near the head.
- Functional interhemispheric connectivity was assessed using EEG spectral coherence analysis across different frequency bands (delta, theta, alpha).
Main Results:
- Global System for Mobile Communications (GSM) stimulation significantly modulated interhemispheric coherence in the alpha 2 (8-10 Hz) and alpha 3 (10-12 Hz) bands.
- Modulations were observed specifically in frontal and temporal electrode pairs.
- Compared to sham conditions, real GSM exposure altered neural synchronization patterns.
Conclusions:
- Prolonged exposure to mobile phone emissions can affect cortical activity.
- EMFs from mobile phones influence the spread of neural synchronization via interhemispheric functional coupling.
- These findings suggest a measurable impact of mobile phone usage on brain communication pathways.
