Table 1 Comparison of the error angles of each experimental condition of optic flows.
Direction 1 | Direction 2 | Velocity (°/s) | Error angles (°) | p-value | t | df | ||
|---|---|---|---|---|---|---|---|---|
A. Comparison with the error angles of the static background screen | ||||||||
Static 1.32 ± 1.27° | Straight | 5 | 1.54 ± 1.60 | 0.162 | 1.405 | 119 | ||
10 | 1.55 ± 1.49 | 0.116 | 1.580 | 119 | ||||
Rotational | 5 | 5.42 ± 3.37 | < 0.001* | 13.23 | 119 | |||
10 | 7.52 ± 5.08 | < 0.001* | 14.39 | 119 | ||||
50 | 9.49 ± 5.54 | < 0.001* | 11.08 | 59 | ||||
B. Comparison with the error angles of the straight 5°/s (horizontal 5°/s + vertical 5°/s) | ||||||||
Straight 5°/s 1.54 ± 1.60° | Straight | 10 | 1.55 ± 1.49 | 0.9260 | 0.093 | 119 | ||
Rotational | 5 | 5.42 ± 3.37 | < 0.001* | 12.14 | 119 | |||
10 | 7.52 ± 5.08 | < 0.001* | 13.36 | 119 | ||||
50 | 9.49 ± 5.54 | < 0.001* | 10.65 | 59 | ||||
Type of optic flow | Velocity of optic flow | Post hoc analysis (p) | ||||||
|---|---|---|---|---|---|---|---|---|
5°/s | 10°/s | 50°/s | p | F | 5–10 | 5–50 | 10–50 | |
C. Comparison of the error angles of different velocities for the rotational optic flow | ||||||||
Rotational | 5.42 ± 3.37 | 7.52 ± 5.08 | 9.49 ± 5.54 | < 0.001* | 16.51 | 0.001* | < 0.001* | 0.021* |
