Effect of head movement using HMD on visually induced motion sickness

Our previous reports indicate that the severity of visually induced motion sickness, (VIMS), can be predicted, to some extent, by a total amount of visual rotation, such as yaw, pitch, and roll, in a limited period in a consistent viewing condition. The visual rotation, however, is not uncertain as to whether it is in terms of optic flow, a pattern of apparent motion of a visual scene caused by relative motion between an observer and a scene, or...