[Catecholaminergic regulation of autorhythmical viscero- and somatomotor activity in early rat ontogenesis]

Ontogenetic peculiarities of catecholaminergic regulation of three vitally important physiological processes are described: heart beating, respiration, and early somatomotor activity. They are subordinated to the autorhythmical regime and are submitted to modulating effects ofnoradrenergic and dopaminergic mechanisms. There are considered age-related changes of this effect whose peculiarity are polar changes of reactions in the process of their maturation from the predominantly excitatory at early stages to predominantly inhibitory ones.