Table 3A.
Clustering results of MMN change over 6-months across 24 frontocentral channels.
| Electrode sites | FEP (Change in MMN) | |
|---|---|---|
| Cluster 1: Better functioning(N = 10) | Cluster 2: Poorer functioning(N = 8) | |
| AFz | -0.79 (1.8) | 2.34 (1.8) |
| AF3 | -1.06 (1.2) | 1.8 (1.2) |
| AF4 | -0.81 (1.7) | 2.09 (1.7) |
| Fz | -0.65 (1.6) | 1.39 (1.6) |
| F1 | -0.87 (1.4) | 1.62 (1.4) |
| F2 | -0.69 (1.3) | 1.65 (1.3) |
| F3 | -0.84 (1.3) | 1.54 (1.3) |
| F4 | -1.27 (1.1) | 1.45 (1.1) |
| F5 | -0.74 (1.6) | 1.53 (1.6) |
| F6 | -1.31 (1.1) | 1.79 (1.1) |
| FCz | -0.48 (1.2) | 1.38 (1.2) |
| FC1 | -0.55 (1.2) | 1.33 (1.2) |
| FC2 | -0.52 (1.2) | 1.39 (1.2) |
| FC3 | -0.42 (1.2) | 1.13 (1.2) |
| FC4 | -0.47 (0.8) | 1.29 (0.8) |
| FC5 | -0.25 (1.3) | 1.05 (1.3) |
| FC6 | -0.87 (0.8) | 1.21 (0.8) |
| Cz | -0.39 (0.9) | 1.1 (0.9) |
| C1 | -0.63 (0.9) | 1.0 (0.9) |
| C2 | -0.4 (0.8) | 0.99 (0.8) |
| C3 | -0.5 (1.0) | 0.95 (1.0) |
| C4 | -0.53 (0.8) | 1.04 (0.8) |
| C5 | -0.37 (1.1) | 0.73 (1.1) |
| C6 | -0.41 (0.6) | 1.15 (0.6) |
Note 1: means with standard deviations in parentheses. Note 2: In each channel, significant difference between the two cluster means (t-test, p-value < 0.05) was shown in bold.