Two studies were conducted to determine if dose-related effects of microwaves could be shown on two behavioral tasks. The first study was designed to examine microwave effects upon discriminative performance; the second study was conducted to determine the effects of exposure upon the acquisition of behaviour.
cognitive/behavioral endpoints: discrimination study (response rate to a light stimulus); repeated acquisition experiment (responses to different colored lights in the correct sequence, animals had to press different levers in the presence of each colored light)
No behavioral deficits were revealed after exposure under these conditions at dose rates less than about 15 W. Irradiation at higher levels produced either burns on the skin or severe convulsions without reliably causing changes in task performance. The results suggest that complex tasks (such as repeated acquisition) may be more sensitive to irradiation effects than are simple schedule control tasks, but this is a hypothesis.