[Use of the prompt identification principle in controlling complex motor systems (speed control)]

Some aspects of the adaptive control of animal motor system described in the form of differential equations system were discussed. It was considered that the system of motor control is a multilevel one in which each level has a definite range of correction capacity for movement deviations. Since the time of the sensory signal passing over the control nervous loop is comparable with the duration of the movement controlled, a mechanism of the fast adaptation to a nonstationary situation was suggested. This mechanism is based on the principle of urgent identification of the motor system state at the moment of movement initiation. Urgent identification occurs by means of estimating of the motor system reaction to a small precisely measured motor signal (test-impulse), which was generated simultaneously with the basic motor command outflow but reached the spinal motor structures more quickly. The mathematical description of the urgent identification principle performance in the motor control in the case of velocity estimating was suggested.