Visual orientation in 0-G ISS Experiments( C Oman, A Berthoz, et al Perceived orientation will affect the perception of the shaded figure and ambiguous figure 16. 423 SBE(Neurovestibular Countermeasures)16.423 SBE (Neurovestibular Countermeasures) Visual Orientation in 0-G ISS Experiments (C. Oman, A Berthoz, et al.) Perceived orientation will affect the perception of the shaded figure and ambiguous figure