The authors consider personality as a conglomeration of individual attitudes to object and social environment and to self. Attitude to self is leading; it reflects child's self-image which is a result of individual activity and of contacts with others. The changes in contents of nuclear and peripheral structures of self-image in late preschool age are connected to social determinants and mark the turning point of child's self-consciousness, entry into critical phase of development. New formations of 7-years-crisis integrate the results of psychic development and determine its further direction.