Subjective evaluation of motion sickness following game play with head mounted display

We investigated the effect of using a head-mounted display (HMD) to play game. Thirty young subjects were asked to fill in a questionnaire with 28 items concerning eye strain, motion sickness, and display-work related symptoms before and after 20 minutes of playing TV games. Each subject performed two sessions, in one session, a conventional TV monitor was used, and in the other, a commercially available HMD was used. Using factor analysis, we classified these items into an eye-strain related group and a motion-sickness related group. Almost all symptoms were worsen after game playing. Fourteen iterms in the TV monitor sessions and 22 items in the HMD sessions were statistically significant. Statistical tests showed that seven symptoms related to motion sickness were significantly worse only with the HMD.