Influence of visual, vestibular, cervical, and somatosensory tilt information on ocular rotation and perception of the horizontal.
By combining a tilting chair and a tilting room we investigated the subjective horizontal (SH) and ocular counterrotation (OCR) as a function of body tilt, trunk tilt, and tilt of a visual frame. Significant influences of (isolated or combined) vestibular and visual information were found, but no influence of neck proprioception. A second and similar experiment, however, now conducted with subjects devoid of labyrinthine function, suggested a contribution of the neck as well as of somatosensory origin. This made a reinterpretation of our data for normal subjects possible.
de Graaf
B
B
TNO Institute for Perception, Soesterberg, The Netherlands.
Bekkering
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H
Erasmus
C
C
Bles
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W
D000328:Adult; D005133:Eye Movements / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D009068:Movement; D009333:Neck / Q000502:physiology; D011187:Posture; D012684:Sensory Thresholds; D015837:Vestibular Diseases / Q000503:physiopathology; D014722:Vestibule, Labyrinth / Q000502:physiology*; D014785:Vision, Ocular / Q000502:physiology*; D014796:Visual Perception / Q000502:physiology*