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Behavioral effects of chronic exposure to 0.5 mW/cm2 of 2,450-MHz microwaves

✍ Scribed by John R. Dewitt; John A. D'Andrea; Rita Y. Emmerson; Om P. Gandhi

Publisher: John Wiley and Sons
Year: 1987
Tongue: English
Weight: 578 KB
Volume: 8
Category: Article
ISSN: 0197-8462
DOI: 10.1002/bem.2250080205

No coin nor oath required. For personal study only.

✦ Synopsis

Adult male, Long-Evans rats were exposed 7 h a day for 90 days to continuous wave (CW) 2,450-MHz microwaves at an average power density of 0.5 mW/cm2. Exposures were in a monopole-above-ground radiation chamber with rats in Plexiglas cages. The resulting specific absorption rate (SAR) was 0.14 W/kg (50.01 SEM). Additional rats served as sham-exposed and home-caged controls. All were evaluated daily for body mass and food and water intakes. Once each 30 days, throughout baseline and exposure phases of the experiment, rats in the sham-and microwave-exposed groups were tested for their sensitivity to footshock. After 90-days of exposure, the rats were evaluated an open field, an active avoidance task and an operant task for food reinforcement. Performance of shamand microwave-irradiated rats was reliably different on only one measure, the leverpressing task. The general conclusion reached was that exposure to CW 2,450-MHz microwave radiation at 0.5 mW/cm2 was below the threshold for behavioral effects over a wide range of variables, but did have an effect on a time-related operant task, although the direction of the effect was unpredictable.

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