Table 3.
Comparison of ERD and its frequencies across hemispheres within each group and between the ALS and control groups
|
A. ALS (n= 8) |
Lt hand imagery |
p |
Rt hand imagery |
p |
||
|---|---|---|---|---|---|---|
| C3 | C4 | C3 | C4 | |||
| ERD (%) |
87.1±7.0 |
85.9± 8.9 |
0.35 |
85.1±11.0 |
83.3±10.1 |
0.74 |
| Frequency (Hz) |
15.5± 4.2 |
15.1±4.2 |
0.67 |
18.3± 6.8 |
15.9± 4.0 |
0.53 |
| control |
Lt hand imagery |
|
p |
Rt hand imagery |
|
p |
| (n= 11) |
C3 |
C4 |
|
C3 |
C4 |
|
| ERD (%) |
67.4±18.4 |
62.8±17.9 |
0.22 |
66.8±20.8 |
69.5±20.8 |
0.45 |
| Frequency (Hz) |
14.7± 4.5 |
14.9±4.3 |
0.96 |
15.9± 4.8 |
12.6± 4.3 |
0.06 |
| (Wilcoxon sign rank test) | ||||||
|
B. group |
ALS (n= 8) |
Control (n= 11) |
p |
|||
| Age (years) |
66.3 ±13.5 |
67.0 ± 3.7 |
0.84 |
|||
| ERD (%) |
85.3±9.0 |
66.6±19.0 |
0.00 |
|||
| Frequency (Hz) |
16.2±4.9 |
14.5±4.5 |
0.23 |
|||
| Significant results are highlighted in bold | Degree of freedom: 19 (Mann-Whitney U test) | |||||
A: ERD and its frequencies in each hemisphere within each group.
B: Age, ERD, and its frequencies compared between ALS and control groups.