Comments on Sjöberg's hypothesis for the mechanism of the inversion illusion under zero-gravity conditions.
D000337:Aerospace Medicine; D055592:Biophysical Phenomena; D001703:Biophysics; D007758:Ear, Inner / Q000502:physiology*; D006801:Humans; D007088:Illusions; D009949:Orientation; D004856:Postural Balance; D011187:Posture; D012399:Rotation; D013026:Space Flight; D014893:Weightlessness