Table 4.
EEG coherence values (mean±SD) during working memory and analysis results by ANOVA
| Bands | F3-F4 | C3-C4 | P3-P4 | T5-T6 | O1-O2 | ANOVA |
|||
| df | F | P | |||||||
| δ | MCI | 1.11±0.11* | 1.10±0.09* | 1.12±0.07* | 1.11±0.08* | 1.08±0.08 | 1 | 18.435 | 0.000* |
| Con | 1.05±0.05 | 1.04±0.08 | 1.06±0.08 | 1.04±0.07 | 1.05±0.06 | ||||
| θ | MCI | 1.08±0.10* | 1.08±0.09* | 1.09±0.06* | 1.10±0.08* | 1.05±0.08 | 1 | 18.010 | 0.000* |
| Con | 1.02±0.04 | 1.01±0.08 | 1.03±0.08 | 1.08±0.06 | 1.02±0.06 | ||||
| α1 | MCI | 1.15±0.11* | 1.15±0.10* | 1.18±0.07* | 1.16±0.09* | 1.13±0.09 | 1 | 19.283 | 0.000* |
| Con | 1.08±0.05 | 1.10±0.08 | 1.11±0.08 | 1.06±0.07 | 1.10±0.07 | ||||
| α2 | MCI | 1.07±0.10* | 1.06±0.09* | 1.08±0.06* | 1.07±0.09* | 1.05±0.08 | 1 | 19.316 | 0.000* |
| Con | 1.01±0.05 | 1.00±0.08 | 1.02±0.08 | 0.99±0.06 | 1.01±0.06 | ||||
| β1 | MCI | 1.06±0.10* | 1.06±0.09* | 1.08±0.06* | 1.07±0.09* | 1.04±0.08 | 1 | 18.186 | 0.000* |
| Con | 1.01±0.04 | 1.00±0.08 | 1.02±0.08 | 0.99±0.06 | 1.01±0.06 | ||||
| β2 | MCI | 1.06±0.10* | 1.06±0.09* | 1.07±0.06* | 1.06±0.08* | 1.04±0.08 | 1 | 15.231 | 0.005* |
| Con | 1.01±0.04 | 1.00±0.08 | 1.01±0.08 | 0.98±0.06 | 1.01±0.06 | ||||
Coherence values transformed to Fisher’s Z scores; Compared between two groups (two-tailed t-test); MCI: Patients with MCI; Con: The normal controls;
P<0.05