Study type: Medical/biological study (experimental study)

Thirty minutes mobile phone use has no short-term adverse effects on central auditory pathways. med./bio.

Published in: Clin Neurophysiol 2003; 114 (8): 1390-1394

Aim of study (acc. to author)

To study whether pulsed high-frequency electromagnetic field emitted by a mobile phone for 30 min has short-term adverse effects on the human central auditory system.

Endpoint

Exposure

Exposure Parameters
Exposure 1: 800 MHz
Modulation type: pulsed
Exposure duration: continuous for 30 min

Exposure 1

Main characteristics
Frequency 800 MHz
Type
Exposure duration continuous for 30 min
Modulation
Modulation type pulsed
Additional info

Japanese mobile phone system

Exposure setup
Exposure source
Distance between exposed object and exposure source 4 cm
Setup The handset was oriented in the normal position for use over the right ear and the microphone oriented towards the corner of the mouth. The antenna was located about 4 cm from the head.
Additional info For all subjects, three experiments were performed that were separated by at least 1 week. The order of three measurements was counterbalanced among the subjects.
Parameters
Measurand Value Type Method Mass Remarks
power 0.8 W - - - net forward power

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)

None of the 3 measures were affected by exposure to pulsed electromagnetic field emitted by a mobile phone for 30 min. The authors conclude that 30 min mobile phone use has no short-term adverse effects on the human auditory system.

Study character:

Study funded by

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