Erroneous perception of vertical motion by humans seated in the upright position.
D000054:Acceleration; D000328:Adult; D000337:Aerospace Medicine; D000401:Aircraft; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009039:Motion Perception; D010469:Perceptual Distortion; D010470:Perceptual Masking; D011187:Posture; D014724:Vestibular Function Tests; D014722:Vestibule, Labyrinth / Q000502:physiology*; D014796:Visual Perception