title: "Conflicting" motion cues to the visual and vestibular self-motion systems around 0.06 Hz evoke simulator sickness.
abstract: The basic question this research addressed was, how does simulator sickness vary with simulated motion frequency? Participants were 11 women and 19 men, 20 to 63 years of age. A visual self-motion frequency response curve was determined using a Chattecx posture platform with a VR4 head-mounted display (HMD) or a back-projected dome. That curve and one for vestibular self-motion specify a frequency range in which vestibular and visual motion stimuli could produce conflicting self-motion cues. Using a rotating chair and the HMD, a third experiment supported (p < .01) the hypothesis that conflicting cues at the frequency of maximum "crossover" between the curves (about 0.06 Hz) would be more likely to evoke simulator sickness than would conflicting cues at a higher frequency. Actual or potential applications of this work include a preliminary design guidance curve that indicates the frequency range of simulated motion that is likely to evoke simulator or virtual reality sickness; for simulators intended to operate in this frequency range, appropriate simulator sickness interventions should be considered during the design process.
authors.affiliation: School of Mechanical and Production Engineering, Nanyang Technological University, 50 Nanyang Ave., Singapore 639798. mblduh@ntu.edu.sg
authors.forename: Henry Been-Lirn
authors.initials: HB
authors.lastname: Duh
authors.forename: Donald E
authors.initials: DE
authors.lastname: Parker
authors.forename: James O
authors.initials: JO
authors.lastname: Philips
authors.forename: Thomas A
authors.initials: TA
authors.lastname: Furness
mesh_terms: D003198:Computer Simulation; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009041:Motion Sickness / Q000503:physiopathology*; D014584:User-Computer Interface; D014722:Vestibule, Labyrinth / Q000503:physiopathology*; D014795:Visual Pathways / Q000503:physiopathology*; D014861:Washington