INDIVIDUAL AND AGE DISTINCTIONS OF VISUALMOTOR REACTION TIME IN SCHOOLBOYS AGED 7-16 YEARS IN YEKATERINBURG
Individual, age and sexual distinctions in simple visualmotor reaction time and their correlation in pupils aged 716 years has been studied. It has been established that in the course of years, reaction time decreased non-monotonously, and periods of sharp distinctions of reaction time alternated with periods of its relatively similar values. Essential heterogeneity of examinees at the same age concerning reaction time has been registered. There have been singled out three groups, two of which (with reaction time about 550 and 350 ms) disappeared with the course of the years, the third group (with reaction time about 200-250 ms) appeared at the developmental age and gradually began to dominate. The periods of sharp distinctions corresponded to substantial growth of quantity of children in the group with lower reaction time. The received results were discussed in relation to the data on basic stages of child development. The periods of sharp distinctions of reaction time corresponded to conclusion of the CNS most significant transformations in the pupils