Control of eye-movement to decrease VE-sickness

One of well-known theories for motion sickness and VE (Virtual Environment) sickness is 'sensory conflict' theory. In this paper, we investigated whether the conflict between actual (extra-retinal) eye-movement and visually-simulated (retinal) eye-movement affects the VE-sickness. In results, we found that VE-sickness was significantly decreased by the control of observer's eye-movement with a stationary/moving fixation point. When the extra-retinal and retinal eye-movements were incongruent while the observer's head was actively moving, the VE-sickness was increased for sickness-sensitive observers. These results suggest that we can decrease VE-sickness by controlling eye-movements with a stationary/moving fixation point to remove conflict of extra-retinal and visual eye-movements. This is a new proposal of the way to decrease VE-sickness.