Table 2.
Mean (SE) values for neuroelectric and behavioral measures as a function of performance and session.
| Higher performers |
Lower performers |
|||
|---|---|---|---|---|
| Measure | Walking | Seated rest | Walking | Seated rest |
| RT (ms) congruent | 507 (14) | 500 (15) | 504 (15) | 477 (16) |
| RT (ms) incongruent | 541 (13) | 534 (18) | 552 (15) | 535 (18) |
| Accuracy (%) congruent | 93.7 (1.1) | 94.2 (1.0) | 93.6 (1.0) | 87.5 (1.3) |
| Accuracy (%) incongruent | 89.2 (1.6) | 90.2 (1.2) | 87.1 (1.7) | 73.8 (1.4) |
| RT interference | 34.1 (5.5) | 34.2 (7.5) | 47.6 (5.5) | 57.8 (7.5) |
| Accuracy interference | 4.5 (1.0) | 3.9 (1.2) | 6.5 (1.3) | 13.7 (1.3) |
| N2 amplitude (μV) | −1.8 (0.9) | −5.3 (1.6) | −3.3 (0.9) | −5.9 (1.6) |
| N2 latency (ms) | 249 (6.9) | 246 (8.6) | 228 (6.8) | 232 (8.6) |
| P3 amplitude (μV) | 8.5 (1.0) | 8.0 (0.9) | 9.4 (1.0) | 5.2 (0.9) |
| P3 latency (ms) | 383 (9.1) | 411 (9.8) | 404 (9.2) | 421 (9.8) |
Note: For ERP data (N2 and P3), all mean (SE) values are collapsed across congruency conditions and respective midline electrode sites; RT is mean reaction time.