Abstract
Visually induced motion sickness (VIMS) is a well-known phenomenon in viewing video, playing video games and others. The VIMS is caused by sensory conflict, the disagreement between convergence and visual accommodation while viewing 3-dimensional (3D) video clips. The VIMS can be measured by psychological and physiological methods. We propose a mathematical methodology to measure the effect of 3D video clips on the equilibrium function. In this study, body sway in rest is compared with that during exposure to 3D video clips on a liquid crystal display and on a head mounted display. In addition, the Simulator Sickness Questioner (SSQ) was completed immediately afterward. Based on the statistical analysis of the SSQ sub-scores and each index for stabilograms, we succeeded in evaluating the quantity of the VIMS during exposure to the stereoscopic video clips. Moreover, we discuss the metamorphism in the potential functions to control the postures including the Romberg posture and a wide stance with the middle line of heels 20 cm apart while viewing 3Dvideo clips.
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