[Tactical behavior of rats when choosing among negative stimuli: pain or exposure to an electromagnetic field]

A new experimental model of two conflicting motives has been developed and tested on rats. The motives are to escape painful stimulation and subsequent microwave irradiation at a dose rate of 500 mWt/cm2 under normal conditions and disturbed thermal regulation due to gamma irradiation of the head. It is found that microwave effects cannot be entirely attributed to the body temperature gradient.