Study type: Medical/biological study (experimental study)

[Biological-cerebral effects of low frequency pulsed radiofrequency fields] med./bio.

Biologisch-zerebrale Effekte in niederfrequent gepulsten Hochfrequenzfeldern

By: Gehlen W, Spittler JF, Calabrese P, Truong MK, Cohrs U, Heidrich M, Reinhard A
Published in: Edition Wissenschaft 1996; 12: 3-27
Journal not peer-reviewed
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Aim of study (acc. to editor)

To examine the influence of high-frequency electromagnetic fields emitted by cellular phones on EEG and cognitive functions of healthy subjects.

Endpoint

Exposure

Exposure Parameters
Exposure 1: 914.2 MHz
Modulation type: pulsed
Exposure duration: 10 min

Exposure 1

Main characteristics
Frequency 914.2 MHz
Type
Exposure duration 10 min
Modulation
Modulation type pulsed
Additional info

D-Netz GSM
Exposure setup
Exposure source
Distance between exposed object and exposure source 0.45 m
Setup three walls and the top of the exposure shielded with absorbers
Sham exposure A sham exposure was conducted.
Parameters
Measurand Value Type Method Mass Remarks
electric field strength 40 V/m - - - at the head

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)

The evaluation of spectral power analysis revealed no effect of exposure compared to the preceding and subsequent 10 minutes without exposure as well as between exposed and non-exposed subjects. A multivariate variance analysis showed no significant statistical difference in the mean values of the different frequency bands when averaged power was calculated separately. No statistically significant differences were found in the cognitive tests between field- and sham-exposure.

Study character:

Study funded by

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