[ACTH and the processes of higher nervous activity in the hedgehog Erinaceus auritus].

Using feeding behaviour model in hedgehogs, studies have been made of the effect of ACTH1-39 on learning, memory and the pre-formed conditioned reactions. It was shown that preliminary administration of the hormone produces facilitating effect on learning. In animals with pre-formed conditioned reflexes ACTH decreases temporal parameters of these reflexes, increasing intersignal and locomotor activity. Injection of ACTH favours memory processes. Intensification of trace conditioned reactions takes place at the background of hyperphagia, vigorous motor activity, etc.