抄録
The physical movements called visually induced postural sway are occurred when humans get visual stimuli. In this study, modeling and the model parameters identification in this phenomenon using second order lag system have been discussed. Based on the results of time- frequency analysis of actual human behaviors, identification procedure of these parameters are considered from the viewpoint of the relations of several characteristics of human behavior and model; Gain and the maximum postural sway, natural angular frequency and the frequency component contributed to induction by visual stimuli, damping coefficient and the decreasing of postural sway after. As the results validity of second order lag model using identification procedure has been confirmed.
