LONGITUDE STUDY OF GENERALIZED COGNITIVE CHARACTERISTICS IN TWINS

The author analyses the correlations between the most generalized char acteristics of cognitive activity - intelligence and image-visual thin king and investigates the changes in these correlations during age-spe cific development. Special attention is paid to the role of genotypic factors determining such changes. The results of phenotypic and geneti c correlations analysis show that image-visual characteristics at pre- school and junior school age are predictive for later levels of intell igence development.