[Neuroendocrinology: its role in the system of neurosciences].

Neuroendocrinology is regarded as an area of knowledge which has emerged at the interface of two disciplines: neurobiology and endocrinology in the course of accumulation of new endence within each. The evidence is strong to evidence that the neurons involve endocrine properties, including the ability to secrete hormones. Strong evidence is given that only the neuroendocrinological approach can explain many mysterious phenomena known in the physiology of the central and autonomic nervous system, which could not have been interpreted by neurobiologists for many years. Neuroendocrinology has provided insight into brain functions and lifted the veil over its mysteries. The latters include the sexual brain differentiation phenomenon which is analysed at the end of the present communication.