Frequency-specific blocking in the human brain caused by electromagnetic fields.
Based on preliminary observations that continuous exposure to electromagnetic fields (EMFs) produced an after-effect on human brain electrical activity, the effect of 10 Hz, 1 gauss, on the intrinsic activity of the brain at that frequency was studied. Ten subjects were exposed for 10 min and the 10 Hz spectral power was measured during the 1 min interval following stimulation and compared with control values obtained from the same subjects. Significantly reduced brain electrical activity from the occipital electrodes following termination of the EMF exposure was observed, thereby confirming the preliminary results.
Bell
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Department of Orthopaedic Surgery, Louisiana State University Medical Center, Shreveport 71130-3932.
Marino
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Chesson
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D000328:Adult; D001921:Brain / Q000503:physiopathology / Q000528:radiation effects*; D004569:Electroencephalography; D004574:Electromagnetic Fields; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged