ID Number		613
Study Type		In Vivo
Model		2450 MHz (CW) exposure to monkeys and analysis of thermoregulatory behavior
Details		Squirrel monkeys were exposed to 2450 MHz (CW) at SARs of 0.5 W/kg to ~6 W/kg in the far field using a horn antenna. Exposure was performed at various ambient temperatures and as short term (10-150 minutes) or long term (up to 15 weeks at 40 hr/wk). Monkeys were analyzed for metabolic heat production as well as by using different behavioral tests. Metabolic heat production was lowered with increasing microwave exposure, and the threshold for behavior modification occurred during a 10 minute exposure at a whole-body SAR of ~ 1 W/kg, or about 20% of the resting metabolic rate of the animal. Skin and rectal temperatures remained stable at this exposure level. No significant acute or long term hematopoietic, behavioral, or physiological changes were associated with exposure. At high exposure levels over 15 weeks, a reduction in body mass and increased skin temperature was observed. Specific heating of the hypothalamus of 0.2 to 0.3 C was sufficient to provoke thermoregulatory responses regardless of ambient temperature or temperature of thermosensitive tissue located elsewhere in the body.
Findings		Effects (only at thermal levels)
Status		Completed With Publication
Principal Investigator		USAF Research Lab, Brooks AF Base, USA - Eleanoradair@aol.com
Funding Agency		AF, USA
Country		UNITED STATES
References		Adair, ER et al. Ann. N.Y. Acad. Sci., (1997) 813:497-507 Candas, V et al. Bioelectromagnetics, (1985) 6:221-234 Adair, ER et al. Bioelectromagnetics, (1985) 6:339-363 Adair, ER et al. Bioelectromagnetics, (1984) 5:13-30 Adair, ER et al. Behav. Neurosci., (1983) 97:49-61 Adair, ER et al. J. Appl. Physiol.: Respiratory, Environmental, Exercise Physiology, (1982) 50:1049-1058 Adair, ER et al. Bioelectromagnetics, (1980) 1:1-20 Adair, ER et al. J. Microwave Power, (1983) 18:209-211
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