Study type: Medical/biological study (experimental study)

Low-level exposure to pulsed 900 MHz microwave radiation does not cause deficits in the performance of a spatial learning task in mice. med./bio.

Published in: Bioelectromagnetics 2000; 21 (3): 151-158

Aim of study (acc. to author)

To determine if a repeated, acute exposure of mice to a pulsed 900 MHz microwave signal that correspond to the GSM signature could be effective in altering the acquisition and performance of a learned behavioral task in a radial arm maze.

Endpoint

Exposure

Exposure Parameters
Exposure 1: 900 MHz
Modulation type: pulsed
Exposure duration: repeated daily exposure, 45 min/day for 10 days

Exposure 1

Main characteristics
Frequency 900 MHz
Type
Charakteristic
Exposure duration repeated daily exposure, 45 min/day for 10 days
Modulation
Modulation type pulsed
Pulse width 576 µs
Rise time 2 µs
Fall time 2 µs
Repetition frequency 217 Hz
Exposure setup
Exposure source
Chamber Animals were individually confined in Perspex cages (14 x 5 x 5 cm) limiting their movement without explicit restraint. Three of the small cages were secured to a Perspex base plate which fitted closely within a container (34 x 20 x 12.5 cm) of twin wall, corrugated polypropylene.
Setup The box was positioned centred along the mid-line of the cell so that the animals were placed mid-way between septum and floor which had a separation of 90 cm at this point.
Parameters
Measurand Value Type Method Mass Remarks
electric field strength 45 V/m mean measured - ± 6%
SAR 0.05 W/kg mean estimated whole body 0.042-0.055 W/kg

Exposed system:

Methods Endpoint/measurement parameters/methodology

Investigated system:
Time of investigation:
  • after exposure

Main outcome of study (acc. to author)

No significant field-dependent effects on performance were found in choice accuracy or in total times to complete the task across the experiment. These data suggest that exposure to radiofrequency radiation simulating a GSM signal under the conditions of this experiment does not affect the acquisition of the learned response.

Study character:

Study funded by

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