Table 4.
Characteristics of younger and older healthy participants included for E2.
| Characteristic | Younger Healthy | Older Healthy | Group difference (p-value) |
|---|---|---|---|
| N | 29 | 24 | — |
| Age (M ± SD in years) | 25.8 ± 7.880 | 58 ± 7.587 | <0.001* |
| Gender | 16 females, 13 males | 16 females, 8 males | 0.416 |
| Education (M ± SD in years) | 16.4 ± 2.244 | 16.9 ± 2.857 | 0.476 |
| Handedness | 29 right | 24 right | 1 |
| Translation in x (M ± SD in mm) | 0.038 ± 0.120 | −0.022 ± 0.122 | 0.073 |
| Translation in y (M ± SD in mm) | 0.001 ± 0.330 | −0.075 ± 0.290 | 0.373 |
| Translation in z (M ± SD in mm) | 0.003 ± 0.123 | −0.009 ± 0.255 | 0.821 |
| Rotation in x (M ± SD in degrees) | −0.014 ± 0.185 | 0.090 ± 0.304 | 0.128 |
| Rotation in y (M ± SD in degrees) | −0.007 ± 0.089 | -0.045 ± 0.153 | 0.270 |
| Rotation in z (M ± SD in degrees) | −0.022 ± 0.067 | −0.023 ± 0.071 | 0.951 |
| Euclidean norm of motion | 0.053 ± 0.021 | 0.067 ± 0.029 | 0.054 |
| DVARS | 26.224 ± 4.294 | 27.123 ± 5.974 | 0.527 |
| FWD | 3.001 ± 1.473 | 3.928 ± 1.929 | 0.052 |
Note: M = mean; SD = standard deviation; DVARS = spatial root mean square after temporal differencing; FWD = framewise displacement; *significantly different with p-value < 0.05.