Effects of stereoscopic presentation on visually induced motionsickness

摘要

The present study investigates whether VIMS, which can be induced in 2D images, is affected by stereoscopic presentation. To do this, we conducted an experiment to measure the effects psychologically and physiologically. Visual stimulus was computer graphics that simulates traveling along streets with additional pitch and roll motion for 10 minutes. The stimulus were presented as either stereoscopic, "3D", images or "2D" images. Before/after and during each trial, psychological and physiological measurements for biomedical effects were conducted. As results, psychological measurements indicate effects of stereoscopic presentations on VIMS. First, subjective score of comfort level measured every one minute significantly decreased to uncomfortable level in the 3D than in the 2D condition. Second, subscore of "Nausea" of Simulator Sickness Questionnaire significantly higher in the 3D than in the 2D condition, while the other subscores and the total score also showed the similar tendency. Moreover, physiological measurements also indicate effects of 3D presentations on VIMS. The LF/HF ratio, which is the index of sympathetic nerve activity, clearly increased more in the 3D than in the 2D condition. We conclude that stereoscopic presentation enhances biomedical effects of VIMS. We speculate that stereoscopic images can be efficient reference of spatial orientation.