Table 1.
Accuracy (percent correct) for same and different trials for both young and old subjects. Standard deviations in brackets. Chance performance on the task was 50%.
| Angles | 0° | 36° | 72° | 108° | 144° | 180° |
|---|---|---|---|---|---|---|
| Younger | ||||||
| Picture-plane rotations | ||||||
| Same trials | 98(2) | 95(4) | 89(8) | 93(9) | 87(9) | 85(10) |
| Different trials | 79(11) | 79(9) | 78(8) | 77(10) | 79(11) | 79(11) |
| In-depth rotations | ||||||
| Same trials | 99(2) | 84(13) | 76(16) | 68(15) | 65(15) | 57(15) |
| Different trials | 68(13) | 67(11) | 64(17) | 61(17) | 64(11) | 71(10) |
| Older | ||||||
| Picture-plane rotations | ||||||
| Same trials | 98 (3) | 89(10) | 83(12) | 85(11) | 81(11) | 79(11) |
| Different trials | 75(15) | 68(17) | 68(16) | 71(12) | 68(14) | 65(13) |
| In-depth rotations | ||||||
| Same trials | 97(4) | 80(9) | 69(14) | 55(16) | 61(14) | 55(15) |
| Different trials | 62(18) | 65(16) | 61(20) | 64(16) | 62(18) | 63(19) |