[On the age-related trends in using sensory information in movement organization].

In the present paper, two apparently contradictory developmental trends routinely found in developmental experimental studies are discussed. One of them is the reduction in relative usage of sensory information in movement control; the other (reverse) trend is that, along the course of development, the sensory information plays increasing role in movement organization. An analysis of experimental data suggests that these two trends can be considered as two mutually related overt consequences of the growing ability to build internal models of the processes in the external world and those within the motor system.