ID Number		667
Study Type		Human / Provocation
Model		0.1-100 kHz, 1, 5 MHz (CW) exposure to humans and analysis of hypersensitivity
Details		Human subjects (n=100) were exposed to EM energy at 0.1-100 kHz and 1 & 5 MHz for 3 minutes per challenge (total of 2,600 challenges) and monitored for blood pressure, pulse rate, respiratory rate, temperature, autonomic nervous system function, and “signs of symptoms”. Alternating magnetic fields generated by the exposure coil were reported as 2,900 nT at floor level, 350 nT at knee level, and 70 nT at hand level. Twenty-five of the subjects were sensitive to one or more of the above endpoints. These 25 hypersensitive subjects were then re-tested, and consistently showed sensitivity to EMF challenge especially at “optimally sensitive frequencies”. Two of these 16 hypersensitive subjects were reported to experience delayed reactions, become depressed, and finally become unconscious with symptoms lasting from 5 hr to 3 days.
Findings		Effects
Status		Completed With Publication
Principal Investigator		Rensselaer Polytechnic Inst, USA
Funding Agency		Private/Instit.
Country		UNITED STATES
References		Rea, WJ et al. J. Bioelectricity, (1991) 10:241-255
Comments		A letter and reply by Bergqvist and Franzen (Electro Magnetobiol (1993) 12(1):v-vii) criticized the study.