Table 4. Correlation between ERD trends and clinical variables (top) and initial ERD (bottom).
| Motor Attempt | Motor Imagery | |||||||
|---|---|---|---|---|---|---|---|---|
| α Trend | β Trend | α Trend | β Trend | |||||
| r | p-val | r | p-val | r | p-val | r | p-val | |
| SCIM | -0.17 | 0.69 | -0.47 | 0.24 | 0.24 | 0.57 | -0.4 | 0.32 |
| MS | -0.72 | 0.02 | -0.15 | 0.68 | -0.12 | 0.74 | 0.4 | 0.25 |
| Clin. Change | -0.46 | 0.25 | -0.63 | 0.09 | 0.1 | 0.81 | -0.28 | 0.5 |
| Init-ERD | -0.02 | 0.96 | -0.29 | 0.38 | -0.2 | 0.55 | -0.82 | 0.002 |
Spearman’s correlations between the ERD trends and the two clinical variables (i.e., SCIM and MS), and between the ERD trends and the initial ERD. α Trend: ERD trend in α band. β Trend: ERD trend in β band. r: Spearman’s correlation coefficient. p-val: P-value. SCIM: Spinal Cord Independence Measure. MS: Motor score. Clin. Change: Clinical change. Init-ERD: Initial ERD.