Viewing wide field-of-view scene movement with a Virtual Reality (VR) display can cause symptoms of cybersickness (e.g., nausea and headache). It has been known that cybersickness is a type of vection-induced motion sickness. Since vection is associated with the perception of moving scene, two studies have been conducted to investigate the effects of different scene movements on levels of cybersickness. The velocity and complexity of the scene movements were quantified by a previously reported metric called ‘spatial velocity (SV)’ while the levels of cybersickness were measured in terms of nausea ratings and Simulator Sickness Questionnaire (SSQ) scores. Results showed that in both experiments, both the nausea ratings and the SSQ total sickness scores increased significantly with increasing SV in the dominant axes of scene movement. Potential uses of the SV metric for formulating a CyberSickness Dose Value (CSDV) are discussed.
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