Table 2.
Mean (and SD) premotor RT’s and motor times to 80dB and 107dB acoustic cues for the impaired and unimpaired limb for each group. Ratio columns [*] for both premotor and motor times represent an index of stimulus intensity: Ratio = (80dB/107dB) × 100
| Premotor RT (msec) | Motor Time (msec) | |||||
|---|---|---|---|---|---|---|
| 80 dB | 107 dB | 80 dB | 107 dB | |||
| Group-Limb | Mean (SD) | Mean (SD) | Ratio * | Mean (SD) | Mean (SD) | Ratio * |
| Young | ||||||
| Unimpaired | 227.73 (45.28) | 169.82 (47.21) | 134.10 | 35.16 (10.14) | 31.32 (7.61) | 112.22 |
| Impaired | 221.81 (41.76) | 163.88 (44.69) | 135.34 | 42.67 (15.67) | 35.00 (10.58) | 121.92 |
| Old | ||||||
| Unimpaired | 271.73 (70.45) | 246.88 (71.45) | 110.06 | 40.63 (21.39) | 41.90 (19.63) | 96.97 |
| Impaired | 256.12 (49.76) | 252.33 (73.88) | 101.50 | 37.97 (13.01) | 36.03 (8.44) | 105.40 |
| Stroke | ||||||
| Unimpaired | 267.73 (47.81) | 224.47 (65.14) | 119.28 | 42.74 (10.26) | 37.80 (7.90) | 113.04 |
| Impaired | 296.22 (57.93) | 251.47 (64.98) | 117.80 | 69.43 (14.14) | 53.53 (14.80) | 129.71 |
Note: for the younger and older control groups the unimpaired limb corresponds to the dominant limb and the impaired limb corresponds to the non-dominant limb.