Stabilometry and head acceleration as a method to evaluate motion sickness induced by 3-D movie on HMD

Abstract

Motion sickness caused by watching 3D movies has been measured by psychological and physiological methods. The simulator sickness questionnaire (SSQ) is a well-known former method that is herein used for verifying the occurrence of visually induced motion sickness. We also measure the head acceleration and the sway of the center of gravity of the human body before and during exposure to a 3D movie on head-mounted display (HMD) while subjects are instructed to remain in the Romberg posture for the first 60s and maintain a wide stance (heels midlines 20cm apart) for the next 60s. While there are several minimal points of the temporally averaged potential function involved in the mathematical model of the sway, the wide stance reduces the gradient of the potential function.