Study type: Medical/biological study (experimental study)

Influence of Pulsed Wave Microwave Radiation on the Rat EEG during the Postnatal Period (Brief Report) med./bio.

By: Drecun M, Jamakosmanovic A, Nakas M
Published in: Period Biol 1990; 92 (4): 439-440
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Aim of study (acc. to author)

To evaluate possible effects of repetitive low-level pulsed wave microwave radiation on the bioelectrical activity of developing rat brain.

Background/further details

Animals were divided in two groups consisting of seven rats from a single litter (one group served as control group).

Endpoint

Exposure

Exposure Parameters
Exposure 1: 2.45 GHz
Modulation type: pulsed
Exposure duration: continuous for two weeks; started on the sixth day after birth

Exposure 1

Main characteristics
Frequency 2.45 GHz
Type
Exposure duration continuous for two weeks; started on the sixth day after birth
Modulation
Modulation type pulsed
Pulse width 2 µs
Packets per second 100
Exposure setup
Exposure source
Setup Plastic perforated cages with their heads towards the antenna.
Parameters
Measurand Value Type Method Mass Remarks
power density 82.6 W/m² unspecified - - -
Additional parameter details

Average absorbed energy per day was 5.66 J/g of body weight and the average value during 14 days was 79.3 J/g.

Exposed system:

Methods Endpoint/measurement parameters/methodology

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

Main outcome of study (acc. to author)

The EEG of exposed rats is characterized with a slight rise in wave amplitude and some slower rhythm. Visual analysis of the EEG shows no conspicuous changes in bioelectrical brain activity between the exposed and control group. Based on the absence of EEG changes the authors suppose that the total absorbed energy of 79.3 J/g of body weight is sufficient only to cause latent alterations in brain function which are not manifested on the baseline EEG.

Study character:

Study funded by

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