Table 3.
Mean (SD) accuracy rates (percentage correct) for control subjects by condition.
| Task | Discrimination trial type |
||
|---|---|---|---|
| Different-hard | Different-easy | Same | |
| Speech | |||
| Consonant | |||
| short | 28.6 (30.4) | 28.6 (22.5) | 93.8 (5.1) |
| medium | 39.3 (23.3) | 85.7 (19.7) | 96.4 (4.9) |
| long | 44.6 (26.9) | 82.1 (18.9) | 96.4 (3.3) |
| Vowel | 21.4 (27.7) | 46.4 (26.7) | 100.0 (0.0) |
| Nonspeech | |||
| Tone Sweep | |||
| short | 58.9 (35.9) | 75.0 (29.8) | 94.6 (5.6) |
| medium | 83.9 (22.5) | 94.6 (6.7) | 95.5 (7.0) |
| long | 85.7 (18.3) | 98.2 (4.7) | 93.8 (8.8) |
| Tone Pitch | 100.0 (0.0) | 94.6 (14.2) | 97.3 (4.9) |
Note: Accuracy rates correspond to correct discriminations in the different-easy and different-hard conditions, and to correct rejections on the no-change trials.