Table 3. Spectral coefficients (mean ± standard deviation across subjects) of each ICA correction in Dataset1.
| Calculation on whole data (ICA_whole) | Calculation on PA intervals (ICA_R) | |||||||
| Correction method | pvaf | corr | wave | pacf | pvaf | corr | wave | pacf |
| Group_test | ||||||||
| Delta+Theta ratio | 0.8372±0.1368 | 1.3522±0.4610 | 1.2962±0.3645 | 1.3357±0.3695 | 0.9079±0.1442 | 1.2698±0.4199 | 1.0936±0.2889 | 1.1386±0.3126 |
| QC_test | ||||||||
| QC | 0.8238±0.4163 | 1.1722±0.5797 | 1.1218±0.5721 | 0.9092±0.3410 | 0.6952±0.2526 | 0.9668±0.6250 | 1.0670±0.5533 | 0.8598±0.4232 |
| Alpha ratio | 0.4113±0.2659 | 0.7878±0.1701 | 0.6297±0.2516 | 0.6793±0.1705 | 0.3655±0.1782 | 0.5219±0.3162 | 0.5723±0.2311 | 0.5530±0.2979 |
| Delta ratio | 0.4872±0.1151 | 0.7576±0.2400 | 0.6193±0.1429 | 0.8290±0.2609 | 0.5675±0.0727 | 0.6118±0.1208 | 0.6363±0.2499 | 0.6831±0.2063 |
| Theta ratio | 0.4383±0.2124 | 0.7241±0.2298 | 0.5421±0.2190 | 0.7655±0.2594 | 0.4592±0.1418 | 0.4784±0.2280 | 0.4952±0.1304 | 0.5903±0.2122 |
Group_test: delta+theta ratio (delta+theta power after ICA correction divided by delta+theta power before ICA correction), averaged over all subjects and channels. QC_test: QC, alpha ratio, delta ratio and theta ratio averaged over the occipital channels of the four subjects with alpha rhythm.