[The mechanism of the neuromotor disorders in the period of the primary reaction to irradiation].

In experiments with dogs it was shown that the impairment of the capacity of fulfilling some actions (e. g. high jumping, equilibration, racing) was maximum 4h after gamma-irradiation with doses of 10 and 40 Gy and did not coincide with vomiting. By shielding body segments it was found that irradiation of abdomen was responsible for the disturbances observed. Novocaine blockade of innervation of abdomen prevented the impairment of the physical capacity, but not vomiting, during the first hours which was indicative of a major role of the reflex mechanism in motor disturbances genesis.