FACTOR ANALYSIS OF SPACE ORIENTATION.
EUROPEAN OFFICE OF AEROSPACE RESEARCH BRUSSELS (BELGIUM)
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Informations from the visual system suffice to set the subjective vertical according to visual clues, up to radial accelerations of 3 g. The distance between test subject and prominent construction features in the centrifuge room was 14 m maximally. The positioning of the subjective vertical to the direction of the gravitational force is facilitated by keeping body and head in the direction of the gravitational force. At 3 g the visual orientation becomes increasingly more difficult, under the experimental conditions used. The difference between subjective vertical and vector of forces is greatest when body and head are fixed in the direction of the gravitational force and no visual orientation is available. Author
- Stress Physiology