Medical/biological study (experimental study)

EEG bioeffects on cochlear deaf from cellular phones med./bio.

By: Bardasano JL, Alvarez-Ude J, Gutierrez I, Raposo M, Goya R

Published in: Environmentalist 2007; 27 (4): 519-523

Aim of study (acc. to author)

To study the effect of electromagnetic induction through mobile phones on the human brain.

Background/further details

EEG data of healthy normal individuals (n=12) were compared to those of cochlear deaf individuals (n=12), to investigate an induced electromagnetic effect that is independent from sound waves. First, EEG recordings were assessed at baseline (5 min with eyes closed and phone off) and then during 5 min conversation with the phone placed on the right ear.

Endpoint

effects on the neurological system: changes in EEG

Exposure

- mobile communications
- digital mobile phone
- GSM

Exposure	Parameters
Exposure 1: 880–960 MHz Modulation type: pulsed Exposure duration: continuous for 5 min	power: 2 W maximum SAR: 0.955 W/kg maximum

General information

For more details, see [Bardasano et al., 2005].

Exposure 1

Main characteristics

Frequency	880–960 MHz
Type	electromagnetic field
Charakteristic	near field
Exposure duration	continuous for 5 min
Additional info	frequency band

Modulation

Modulation type	pulsed
Additional info	GSM

Exposure setup

Exposure source	cellular phone
Distance between exposed object and exposure source	2 cm
Chamber	Each subject was comfortably seated on a plastic chair inside a Faraday chamber.
Setup	The mobile phone was held by an insulated device over the right ear, 2 cm from the auricle to avoid thermal effects.
Additional info	The EEG of subjects, relaxed and with their eyes closed, was recorded while listening to a 5-min conversation, first with the mobile phone off (basal state) and then with the phone on.

Parameters

Measurand	Value	Type	Method	Mass	Remarks
power	2 W	maximum	-	-	-
SAR	0.955 W/kg	maximum	-	-	-

Reference articles

Bardasano JL et al. (2005): New Device Against Non-Thermal Effects from Mobile Telephones

Exposed system:

human
partial body: right ear

Methods Endpoint/measurement parameters/methodology

effects on the neurological system: EEG

Investigated system:

investigation on living organism

Investigated organ system:

brain/CNS

Time of investigation:

before exposure
during exposure

Main outcome of study (acc. to author)

By comparing the EEG data of both groups, an increase in the amplitutes of alpha waves and theta waves, regardless of the sound waves, has been observed. This suggests an inductive direct non-thermal effect of the mobile phone signal on the brain.

Study character:

medical/biological study
experimental study
full/main study

Study funded by

Bioelectromagnetism European Foundation (BEF)
Siemens AG

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