[The evolution of sleep circadian cycle and telencephalo-diencephalic interaction in vertebrates].

The modem representations of wakefulness-sleep cycle evolution and the data about dynamics of reactivity of activating and inhibition neurotransmitter systems of the forebrain, converging in striatum, in cold- and warm-blooded vertebrates are considered. The data about dynamics of immune reactivity of vasopressin- and oxytocinergic cells of paraventricular and supraoptical hypothalamic nuclei is presented. On the basis of the obtained results, the idea of the leading role of telencephalo-diencephalic interactions in activation of somnogenic processes and their possible mechanisms is advanced.