Total perceptual system contains the double motor system, which has a close relation to gathering visual information directly and to testing its validity indirectly. We considered the information-processing in this system from the viewpoint of psycho-cybernetics, (especially Ashby's model). A. percept is determined by both a proximal stimulus and by two kinds of moves: moves as the motor system to gather information and moves as the operation to process information. In order for the percept to suitably reflect the physical environment, it is necessary to increase the variety of moves. While a suitable percept is obtained by the selection of moves, according to a task or goal, and through the first feedback, the percept becomes increasingly suitable through the second feedback, which contains a step mechanism and a corrector. Therefore the total perceptual system functions as both an ultrastable system and a self-organizing dynamic system.