Clinical models of the communication disturbances (autism in children, early schizophrenia, neurotic disturbances of communication) have been used in order to correlate the ontogenetical aspects of the ability for communication as a psychological function and the development of communication as a form of interpersonal activity. Comparison of the clinical data with norm enables the author to assume that the ability for communication is a necessary precondition for the development of communication in the process of children's socialization. It is shown also that this approach can serve as a productive basis for further study of communication and for prevention of psychological causes of disturbances of the latter.