A multifactorial study on the relative postradiation changes in various categories of behavioral reactions in rats
1989
: The use of the methods of multifactor, orthogonal and composition planning in studying the behavioural disturbances in rats after gamma irradiation with doses of 0.258 to 1.29 C/kg and the application of the proposed method of discrimination of effects by empirical models permitted to establish the informative and adequate dependences of the probability of these disturbances on dose of nonuniform irradiation and the degree of strengthening of the conditioned reflex. It was shown that the effect of radiation decreased, in a discrete manner, the probability of making the first decision by rats in a behavioural task (here we deal with the "dose-response" function). The average time of making the first decision after irradiation was invariable within the dose range under study. Within the range of the studied factors both the value of the dose of whole-body irradiation and the degree of strengthening of the conditioned reflex significantly affected the probability of fulfilling the task by the animals the significance of the radiation dose being several times higher. The effects of the interaction of the two factors, that is, irradiation and the degree of the radiation affection, were insignificant in changing the behavioural reactions under study.
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