Table 2 Background conditions for each of the six visits. On visits 3 to 6, the order of conditions C, D, E, and F are randomized.
Visit | Condition | Optic Flow | Contrast | Spatial Frequency |
|---|---|---|---|---|
1 | A | No | None | None |
2 | B | No | High | Low |
3 | C | Yes | Low | Low |
4 | D | Yes | Low | High |
5 | E | Yes | High | Low |
6 | F | Yes | High | High |