EMF Research Studies

The Sensation of Hearing in Electromagnetic Fields

Clyde E. Ingalls

Experiments showed that radar transmitters operating at 1, 3, and 10 k Mc/sec could be heard. The hearing occurred without using the ear, as window screening blocked the sound but placing the ear through a hole in the screen did not restore it, while only a spot on the head above the forehead allowed perception. The author concluded that neither air nor bone conduction explains the effect and that direct nervous system involvement is more likely.

RESPONSE OF MAN TO HIGH INTENSITY THERMAL RADIATION

J. D. Hardy, D. Murgatroyd

Pain reports were predictably related to skin temperature at the end of exposure, not to irradiance or exposure time alone. On the face, pain threshold temperature did not change significantly with area size, varying between subjects from 43.3°C to 46.9°C. Whole anterior or posterior body exposure lowered the pain threshold to about 43°C and was described as intolerable.

Attempts to Cue Successful Escape From A Highly Intense Microwave Field by Photic Stimulation

Unknown authors

Researchers exposed groups of hooded rats to a 918-MHz microwave field at 60 mW/g and tested escape learning under four conditions. Escape was reinforced by immediate cessation of radiation when the rat entered a safe area, while a control group received faradic shock cessation. Rats given foot shock learned to escape rapidly, and rats with microwave cessation paired with a light cue also learned but more slowly. Rats exposed to microwave alone showed weak learning after 15 trials but did not differ statistically from rats that received only light cessation.

MICROWAVE-INDUCED CONDITIONED TASTE AVERSIONS IN RATS AT 987 MHz

Unknown authors

EFFECT OF CHRONIC EXPOSURE TO AN ELECTRIC FIELD ON SUBSEQUENT DISCRIMINATION OF ELECTRIC FIELDS

Unknown authors

Researchers exposed male Sprague Dawley rats to a 100 kV/m 60-Hz electric field for 30 days at 22 hours per day or gave them sham exposure. After exposure, rats were tested in a shuttlebox with one end shielded and the other exposed at field strengths of 0, 25, 50, 75, or 100 kV/m. Pre-exposed rats spent significantly more time in the exposed region at 25 kV/m than sham pre-exposed controls. Within the pre-exposed group, exposed side residence was higher across field strengths, while sham pre-exposed rats spent more time on the shielded side.

THE EFFECT OF 9.31 GHZ PULSED MICROWAVE IRRADIATION ON THE LEVER PRESS BEHAVIOR OF OPERANTLY RESPONDING RHESUS MONKEYS

Unknown authors

Twelve rhesus macaques were trained to press a lever for apple juice while positioning their heads in front of a 9.311 GHz microwave horn. The microwave delivered a 0.5 μs pulse at an average power density of 150 mW/cm² at the monkey's head. Over 20 sessions of 15 minutes each, with 10 irradiation and 10 non-irradiation sessions, the combined mean lever press rate did not differ significantly. Individual monkeys showed significant differences in lever press rates between irradiation conditions. A transition experiment on 6 monkeys found no statistically significant effect on mean lever press rate when the radiation was switched on or off.

EFFECTS OF HIGH INTENSITY 60 Hz ELECTRIC FIELDS ON PRIMATE BEHAVIOR NATURAL (SOCIAL) BEHAVIOR

Unknown authors