Background. The issue of the nature and origin of human psyche as a universal puzzle does not have a final solution for today. So, ideas about the subject matter of psychology, the issue of nature and the origin of human psyche discussed by A.N. Leontiev have not lost their significance for modern psychology.

Objective is to introduce the original assumptions of A.N. Leontiev that he coins discussing the nature of human psyche psyche and its origin in the course of the evolution of living beings.

Design. In this paper, the early representations of A.N. Leontiev about the nature and origin of human psyche are analyzed. The heuristic assumption of A.N. Leontiev about some living beings possessing the ability to react to external influences by displaying deep emotion or changing their primary sensation of various modality, which can be considered a pre-mental (biological) reflection, which further sets as reflection. The external objective activity of living beings changes their feelings as if they refer organism condition. The activity allows not only to create a motor image of the behaviour space, but also to use the primary experiences (feelings) to create ideas about the objects.

Results. These assumptions make it possible to view the psyche as a representation of the subject of activity and perception about the objective conditions and integral objects of the behavioural space that create the illusion of opening up the space for one's behavior. Such illusion arises due to the actual physical interaction of the subject of behaviour with the real objects of the external world.

Conclusion. A.N. Leontiev’s assumptions about the nature and origin of human psyche allow to elaborate a number of important provisions on this issue, which will be of great interest for modern psychologists and will occupy a worthy place in the theory of psychological science.

The paper discusses a significant and actual issue of developing autonomy of the individual. Special attention is paid to adolescent age having high potential for developing autonomy in view of certain changes in the psychological and social sphere of the adolescents. The value of interpersonal interaction in the course of developing adolescent autonomy is shown.

The approaches to the concept of interaction are analyzed, four main directions of explaining the essence of interaction are allocated: symbolical interactionism (J. Mid), social exchange (J. Homans, G. Blumer), sociodramatic touch (E. Goffman) transaction analysis (E. Berne). Types of interaction, efficiency of interaction development are considered.

The analysis of interpersonal interaction issues shows its communication with the categories of «relation», «communication» and «joint activity» (B.G. Ananyev, G.M. Andreyeva, S.V. Dukhnovsky, Ya.L. Kolominsky V.N. Kunitsyna, V.N. Myasishchev, B.D. Parygin, etc.). The concept of interpersonal interaction system of the autonomy causing development of adolescence in the paradigm of psychologist-teacher interaction, and also child-parent interaction is described. The advantage of psychological assistance and pedagogical support within the system of interpersonal interaction for further development of adolescent autonomy is proved.

The value of cooperation as one of the types of interpersonal interaction in the course of adolescent autonomy development is shown. Mechanisms of interpersonal interaction, nature of contact in interpersonal interaction, components of a social situation are described.