title: Some observations on the behavior of a visual target and a visual after-image during parabolic flight maneuvers.
authors.forename: J A
authors.initials: JA
authors.lastname: ROMAN
authors.forename: B H
authors.initials: BH
authors.lastname: WARREN
authors.forename: J I
authors.initials: JI
authors.lastname: NIVEN
authors.forename: A
authors.initials: A
authors.lastname: GRAYBIEL
mesh_terms: D000337:Aerospace Medicine; D000360:Afterimage; D006801:Humans; D007088:Illusions; D014785:Vision, Ocular; D014796:Visual Perception; D014893:Weightlessness
keywords: AFTERIMAGE; AVIATION MEDICINE; ILLUSIONS; VISUAL PERCEPTION; WEIGHTLESSNESS