## Abstract We investigated whether the pulsed high frequency electromagnetic field (EMF) emitted by a mobile phone has short term effects on the human motor cortex. We measured motor evoked potentials (MEPs) elicited by single pulse transcranial magnetic stimulation (TMS), before and after mobile
Effects of microwaves emitted by cellular phones on human slow brain potentials
β Scribed by Gabriele Freude; Peter Ullsperger; Siegfried Eggert; Ingeburg Ruppe
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 127 KB
- Volume
- 19
- Category
- Article
- ISSN
- 0197-8462
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β¦ Synopsis
The influence of electromagnetic fields (EMF) emitted by cellular phones on preparatory slow brain potentials (SP) was studied in two different experimental tasks: In the first, healthy male human subjects had to perform simple self-paced finger movements to elicit a Bereitschaftspotential; in the second, they performed a complex and cognitive demanding visual monitoring task (VMT). Both tasks were performed with and without EMF exposure in counterbalanced order. Whereas subjects' performance did not differ between the EMF exposure conditions, SP parameters were influenced by EMF in the VMT: EMF exposure effected a significant decrease of SPs at central and temporo-parieto-occipital brain regions, but not at the frontal one. In the simple finger movement task, EMF did not affect the Bereitschaftspotential.
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