Study type: Medical/biological study (experimental study)

Microwaves induce peripheral vasodilation in squirrel monkeys med./bio.

Published in: Science 1980; 207 (4437): 1381-1383

Aim of study (acc. to editor)

To study the effects of microwave exposure on peripheral vasodilation in Squirrel monkeys.



Exposure Parameters
Exposure 1: 2.45 GHz
Modulation type: CW
Exposure duration: 5 min

Exposure 1

Main characteristics
Frequency 2.45 GHz
Exposure duration 5 min
Modulation type CW
Exposure setup
Exposure source
Distance between exposed object and exposure source 1.85 m
Chamber chamber 1.83 m x 1.83 m x 2.45 m
Setup inner walls of chamber covered with pyramidal microwave absorbers; long axis of the animal aligned with E vector of the field
Measurand Value Type Method Mass Remarks
power density 8 mW/cm² - - - -

Exposed system:

Methods Endpoint/measurement parameters/methodology

Investigated system:
Time of investigation:
  • during exposure
  • after exposure

Main outcome of study (acc. to author)

Monkeys in a cool environment can be induced to vasodilate by brief exposures to microwaves at intensities that produce no observable change in core temperature. That no vasodilation occurred during infrared exposures of equivalent power density indicates that non-cutaneous thermosensitive structures may mediate microwave activation of thermoregulatory responses in the peripheral vasomotor system.

Study character:

Study funded by