Expression of Balance Function During Exposure to Stereoscopic Video Clips

Abstract

In contrast to two-dimensional (2D) video clips that project flat images, stereoscopic video clips elicit the feeling of being at a live performance. However, asthenopia and visually induced motion sickness (VIMS) can result from the exposure to these video clips. Even though various hypotheses exist, the pathogenesis of VIMS is still unclear. There is not enough knowledge on the effects of stereoscopic images on the living body, and the accumulation of basic research is thus important. In previous studies, we pointed out peripheral viewing as a pathogenesis of VIMS, the evidence of which was demonstrated and the anomalous sway was described using mathematical models. Moreover, stochastic differential equations can mathematically model the body sway phenomenon. In this study, we discuss the metamorphism in the potential functions to control the standing posture during exposure to stereoscopic video clip using mathematical model. As a result, while viewing a 3D video clip, the rigidity of the body in the mathematical model increased compared to when no video was viewed. This tendency was observed more in the lateral direction than in the anterior-posterior direction.