M.I.T./Canadian vestibular experiments on the Spacelab-1 mission: 2. Visual vestibular tilt interaction in weightlessness

Adaptation to weightlessness includes the substitution of other sensory signals for the no longer appropriate graviceptor information concerning static spatial orientation. Visual-vestibular interaction producing roll circularvection was studied in weightlessness to assess the influence of otolith c...

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Bibliographic Details
Published in:Experimental brain research 1986-01, Vol.64 (2), p.299-307
Main Authors: Young, L. R., Shelhamer, M., Modestino, S.
Format: Article
Language:English
Subjects:
Adaptation, Physiological
Cues
Field Dependence-Independence
Humans
Kinesthesis - physiology
Life Sciences (General)
Optical Illusions - physiology
Orientation - physiology
Space Flight
Space life sciences
Touch - physiology
Vestibule, Labyrinth - physiology
Visual Perception - physiology
Weightlessness
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Summary:Adaptation to weightlessness includes the substitution of other sensory signals for the no longer appropriate graviceptor information concerning static spatial orientation. Visual-vestibular interaction producing roll circularvection was studied in weightlessness to assess the influence of otolith cues on spatial orientation. Preliminary results from four subjects tested on Spacelab-1 indicate that visual orientation effects were stronger in weightlessness than pre-flight. The rod and frame test of visual field dependence showed a weak post-flight increase in visual influence. Localized tactile cues applied to the feet in space reduced subjective vection strength.
ISSN:0014-4819
1432-1106
DOI:10.1007/BF00237747