Comparative study of thought characteristics of adolescents healthy and schizophrenic

: The paper is concerned with selectivity formation in the actulization of knowledge during the process of thinking in cases of abnormal development of adolescents--schizophrenic patients (61 cases). The study was performed in contrast to a control group of normals (114 cases) of the same age and educational census. The results demonstrate changes in the process of selectivity formation in the actualization of knowledge in adolescent schizophrenic patients which was detected in a weakening of the organizing role of the adopting system of social experience during the development of the cognitive activity.