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To study the effects of sub-chronic and chronic head exposure to 900 MHz on spatial memory of male rats.
30 rats each were exposed during 8 weeks (experiment 1: sub-chronic) and 24 weeks (experiment 2: chronic). Performance of exposed rats was compared with a sham exposure group, a negative control (no exposure) and a positive control (injection of scopolamine hydrobromide 0.1 mg/Kg before memory test). Effects of scopolamine involve impaired working memory in a radial-maze task.
The results indicate that sub-chronic and chronic exposure of rats to GSM electromagnetic fields did not induce spatial memory deficit in the 8-arm radial maze. Scopolamine treatment in the positive control rats induced spatial memory deficits in the test.