Figure 1. Sensory Organization Test 6 conditions. Vision is absent in conditions 2 and 5. In conditions 3 and 6, the sway-referenced anterior-posterior angular motion of the surrounding wall reduces optic flow stimulation useful for the perception of self-motion relative to the visual field. In conditions 4 through 6, sway-referenced angular motion of the forceplates reduces somatosensory stimulation useful for the perception of anterior-posterior self-motion relative to the support surface. (Used by permission from NeuroCom International, Inc).
