Study type: Medical/biological study (experimental study)

Effects of mobile GSM radiotelephone exposure on the auditory brainstem response (ABR). med./bio.

Published in: Neurobiology (Bp) 1999; 7 (1): 79-81
Journal partially peer-reviewed/unclear

Aim of study (acc. to author)

To examine the possible acute effects of radiofrequency exposure emitted by GSM cellular phones. Auditory brainstem response have been recorded before and after the short-term exposure from the common used handy-devices.

Endpoint

Exposure

Exposure Parameters
Exposure 1:
Modulation type: pulsed
Exposure duration: continuous for 15 min

Exposure 1

Main characteristics
Frequency
Type
Exposure duration continuous for 15 min
Modulation
Modulation type pulsed
Additional info

GSM

Exposure setup
Exposure source
Setup The cellular phone was positioned close to the head while the subjects were lying with their eyes closed in an electrically shielded area.
Additional info The output power and the status of the phone (on/off) were controlled by a computer without the knowledge of the subject.
Parameters
Measurand Value Type Method Mass Remarks
power 2 W peak value unspecified - -

Exposed system:

Methods Endpoint/measurement parameters/methodology

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

Main outcome of study (acc. to author)

Wave V latency on the exposed side increased significantly compared to its baseline. A hearing deficiency was found on exposed side only.

Study character:

Study funded by

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