Abstract
While continuously observing objects in motion, humans may develop an illusionary sense of moving in the same direction as the objects, despite being quiescent. This phenomenon is termed as vection. In this study, we investigate the effect of viewing 3D movies on vection. The body sway of subjects while viewing 2D and 3D 3-min movies was recorded. From the results of this study, we obtained three findings. First, a longer viewing time provides higher synchronization accuracy with the movie. Second, the synchronization accuracy while viewing 3D movies is higher than that while viewing 2D movies. Third, there is a possibility that the entire space motion in the movie affects vection.
