SERVOANALYTIC STUDY OF EYE TRACKING MOVEMENT RECORDED BY ELECTRO-OCULOGRAPHY.
Mitsuo Iida, M KOBAYASHI · PubMed · 1963
When man tries to catch something on a table in his hand, he has to measure error between the material and hand to perform his final purpose. By this is meant that human manual control system includes a feedback of visual system, and is regulated by it. Of course, although the manual control system is complicated and has multiple loop, servoanalytic study of this system has been carried out in a sense of cybernetics, since Wiener pointed out in 1948.10> As mentioned above, the visual system is one of feedback for human performance, while the visual system consists of eye ball, eye muscles, visual cortex and connection between peripheral and central apparatus. Being controlled by these apparatus, eye movement can be done smoothly so as to satisfy his will. Namely, the visual system, one feedback of the human manual control system, has so-called multiple loop and information from the visual system probably propagates to motor cortex and regulates the human performance. In order to clarify the manual control system in terms of servomechanisms, it may be considered that eye tracking control system is a servomechanism and be reasonable that the system is studied and analysed by a method of frequency response as well as Stark, Iida and Willis's work 7' or other works~, on the manual control system in man.