Effects of Acute X-Irradiation on the Evoked Cerebellar Response

Abstract

The evoked neurological response of the cerebellum was recorded in cats while the animals were being irradiated with 220-kv X-rays at rates of 50-to 120 r/min. Amplitude of the evoked cerebellar response began to decrease at an average value of 6000 r but varied within a range of 1500 r on either side of this value. Animals to which more than 10,000 r were given showed severe flattening of the responses. Responses reduced during exposure to radiation showed a further reduction in the early (10-30 minutes) post-irradiation period.