Behavioristic and electroencephalographic changes in rats under long-lasting modulated electromagnetic field (frequency of 40 MHz, modulation frequency 50 Hz, intensity 100--120 V/m) were studied. Some phasic disorders in the conditioned feeding and defense reactions were observed, including cataleptic state as a result of the action of modulated electromagnetic field. These behavioristic disorders are determined by the changes in the normal cortico-subcortical relationships.
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