Study type: Medical/biological study (experimental study)

Short GSM mobile phone exposure does not alter human auditory brainstem response. med./bio.

Published in: BMC Public Health 2007; 7: 325

Aim of study (acc. to author)

To study the potential adverse effects of the GSM mobile phones on the human hearing system.

Background/further details

15 subjects were exposed and 15 subject were sham-exposed.

Endpoint

Exposure

Exposure Parameters
Exposure 1: 900 MHz
Modulation type: pulsed
Exposure duration: continuous for 10 min
  • power: 2 W peak value
  • SAR: 0.41 W/kg peak value

Exposure 1

Main characteristics
Frequency 900 MHz
Type
Exposure duration continuous for 10 min
Modulation
Modulation type pulsed
Additional info

GSM

Exposure setup
Exposure source
Chamber Subjects, instructed to avoid unnecessary movements, lay supine in a dimly lit, sound attenuated room on an electrically shielded bed with their eyes closed.
Setup The mobile phone was mounted on a plastic headset in normal use position.
Sham exposure A sham exposure was conducted.
Parameters
Measurand Value Type Method Mass Remarks
power 2 W peak value - - -
SAR 0.41 W/kg peak value measured - -

Reference articles

  • Parazzini M et al. (2005): Influence on the mechanisms of generation of distortion product otoacoustic emissions of mobile phone exposure.

Exposed system:

Methods Endpoint/measurement parameters/methodology

Investigated system:
Investigated organ system:
Time of investigation:
  • before exposure
  • after exposure

Main outcome of study (acc. to author)

A single 10 minute exposure of 900 MHz electromagnetic fields emitted by a mobile phone did not produce measurable immediate effects in the latency of auditory brainstem response waves I, III and V.

Study character:

Study funded by

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