title: Vection and simulator sickness.
abstract: Simulator sickness has been identified as a form of motion sickness in which users of simulators exhibit symptoms characteristic of true motion sickness.  In a fixed-base simulator, visual and vestibular sources of information specifying dynamic orientation are in conflict to the extent that the optical flow pattern viewed by the pilot creates a compelling illusion of self-motion, which is not corroborated by the inertial forces transmitted through the vestibular sense organs.  Visually induced illusory self-motion is known as vection, and a strict interpretation of sensory conflict theory of motion sickness suggests that vection in a fixed-base simulator would be a necessary precondition for simulator sickness.  Direct confirmation of this relation is reported in this article.
authors.affiliation: Essex Corporation.
authors.forename: L J
authors.initials: LJ
authors.lastname: Hettinger
authors.forename: K S
authors.initials: KS
authors.lastname: Berbaum
authors.forename: R S
authors.initials: RS
authors.lastname: Kennedy
authors.forename: W P
authors.initials: WP
authors.lastname: Dunlap
authors.forename: M D
authors.initials: MD
authors.lastname: Nolan
mesh_terms: D000293:Adolescent; D000328:Adult; D000337:Aerospace Medicine; D001359:Aviation / Q000193:education*; D006801:Humans; D008297:Male; D009041:Motion Sickness / Q000209:etiology* / Q000523:psychology*; D009903:Optical Illusions; D011434:Proprioception; D011795:Surveys and Questionnaires