S. Nakamura et S. Shimojo, ORIENTATION OF SELECTIVE EFFECTS OF BODY TILT ON VISUALLY INDUCED PERCEPTION OF SELF-MOTION, Perceptual and motor skills, 87(2), 1998, pp. 667-672
We examined the effect of body posture upon visually induced perceptio
n of self-motion (vection) with various angles of observer's tilt. The
experiment indicated that the tilted body of observer could enhance p
erceived strength of vertical vection, while there was no effect of bo
dy tilt on horizontal vection. This result suggests that there is an i
nteraction between the effects of visual and vestibular information on
perception of self-motion.