See Table 6.1.
| Background | Motion sickness may arise from conflicting rest frames, rather than from conflicting motion cues per se. The visual rest frame is heavily influenced by the visual background. |
| Hypothesis | A visual background in agreement with inertial cues should reduce simulator side-effects, even if the visual foreground is not in agreement with inertial cues. |
| Methods | A circular vection stimuli was provided both with and without a stationary visual background. Measures included per-exposure postural instability and post-exposure reported simulator sickness. |
| Results | Both postural instability (p < .03) and SSQ (p < .05) were significantly lower with a stationary visual background. |
| Conclusions | The results support the hypothesis. |