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'''Motion Sickness''' or '''Simulator Sickness''' is the feeling a type of dizziness, headache, nausea, vomiting and other discomforts Motion Sickness that occurs when using a [[VR]] or and [[AR]] devicedevices. In [[virtual reality]]The symptoms of simulator sickness are dizziness, headache, nausea, Motion vomiting and other discomforts. Simulator Sickness occurs when the VR devices fails to completely fool our vestibular system, the sensory system responsible for balance and spatial orientation. It is caused by the discrepancies between the motion perceived from the screen of [[HMD]] and the actual motion of the user's head and body. In other words motion simulator sickness from VR is developed when what our eyes see does not match how our heads move. Even minute discrepancy can cause these unpleasant sensations. Motion Sickness Simulator sickness is one of the major problems to the wide adoption of [[Virtual Reality]]. As hardware and software improve, [[VR Devices]] hope to reduce and eventually eliminate Motion Sicknesssimulator sickness.

[[Gabe Newell]] from [[Valve]] has claimed that its [[HTC Vive]], unveiled in GDC 2015, is the first [[VR Device]] that has eliminated motion simulator sickness from its users. HTC Vive has [[Lighthouse Motion Tracking]] system that utilizes lasers to improve the accuracy of the head tracking to under 1/10 of a degree.