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To determine whether there is a localized effect of GSM microwaves by studying the auditory evoked potentials recorded at the scalp of nine healthy subjects and six epileptic patients.
|ばく露時間||continuous for a part of the session lasting about 500 s|
|Additional information||Wiart J, Chaillou S, Altman Z, Drago S. 1999. Calculation of the power deposited in tissues close to a handset antenna using a non-uniform FDTD. In: Bersani F, editor. Electricity and magnetism in biology and medicine: 2nd World Congress for electricity and magnetism in biology & medicine, Bologna, Italy, 8 - 13 June 1997. New York: Plenum Press.|
|Duty cycle||12.5 %|
|Repetition frequency||216.7 Hz|
|チャンバの詳細||The fully conscious subject was comfortably seated in a soundproofed Faraday screen room.|
|ばく露装置の詳細||The phone was placed close to the right ear on the electrodes helmet using a plastic structure without metal parts.|
|Sham exposure||A sham exposure was conducted.|
|Additional information||Each subject attended single-blind experimental and control sessions that took place over a period of several days. The experimental session consisted of two sequential recording phases, the first one without and the second one with maximum RF emission. The control session was also composed of the same two phases, but both of them without RF emission.|
The epileptic patients showed a lengthening of the scalp component N100 (100 ms latency) in the frontal area contralateral to the irradiation. For the healthy subjects, an amplitude increase of the P200 wave (200 ms latency) was identified in the frontal area.
The data indicate that radiofrequency fields emitted by mobile phones modify the auditory evoked potentials. Nevertheless, no direct link between these data and radiofrequency-induced damages in brain function was established.