We evaluateded a human self-control system for wide-visual field stereoscopic images using measurements of body sway and eye movement caused by vection. First, it was found that the locus length of body sway did not depend on the degree of the moving rectangular target with a uniform disparity. We used the same target with the same disparity in one period and zero disparity in the another period. The body sway was measured while the part of the target with disparity was moved repeatedly side to side and the other part was stationary. The locus length of body sway had a longer value for the moving target behind the stationary one than in other cases. These results agree with the results of the subjective assessment in the psychological experiment which used real targets. Moreover, the frequency of OKN (optokinetic nystagmus) was almost the same for the uniform disparity target in the measurement of eye movement. It was also found that OKN occurred frequently with a moving target behind a stationary one. However, OKN was almost nonexistent in other cases. In conclusion, we examined the possibility of the objective evaluation of a human self-control system based on these results.
