Study type: Medical/biological study (experimental study)

Operant behavior and rectal temperature of squirrel monkeys during 2.45-GHz microwave irradiation. med./bio.

Published in: Radio Sci 1979; 14 (6) Suppl: 217-225

Aim of study (acc. to editor)

To study operant behavior and rectal temperature of squirrel monkeys during 2.45 GHz microwave exposure. Sham-exposure sessions always occured before and after each series of irradiation sessions.



Exposure Parameters
Exposure 1: 2.45 GHz
Modulation type: AM
Exposure duration: 30 min or 60 min

Exposure 1

Main characteristics
Frequency 2.45 GHz
Exposure duration 30 min or 60 min
Modulation type AM
Modulation frequency 120 Hz
Modulation depth 100 %
Exposure setup
Exposure source
Distance between exposed object and exposure source 1.334 m
Chamber microwave anechoic chamber
Setup styrofoam chair to restrain animal
Measurand Value Type Method Mass Remarks
power density 100 W/m² minimum measured - -
power density 202.3 W/m² mean measured - at head
power density 750 W/m² maximum measured - -

Exposed system:

Methods Endpoint/measurement parameters/methodology

Investigated system:
Time of investigation:
  • during exposure

Main outcome of study (acc. to author)

The behavior of the animals on the observing-response task was disrupted during 30- or 60-minute exposures but only at power densities that were 50 mW/cm² or higher. This disruption was increasingly evident as power density increased. Under both durations of irradiation (30 and 60 minutes), behavior was not consistently perturbed until rectal temperatures increased more than 1°C. Rectal temperature was slightly increased at 10 mW/cm², was a monotonic function of the power density, and was markedly elevated at power densities between 40 an 50 mW/cm².

Study character:

Study funded by