Table 2.
Mean (M) and standard deviation (SD) for P2 mean amplitudes (μV).
| Uncertain positive | Certain positive | Uncertain negative | Certain negative | |||||
|---|---|---|---|---|---|---|---|---|
| M | SD | M | SD | M | SD | M | SD | |
| F3 | 4.65 | 4.94 | 4.72 | 4.91 | 1.55 | 4.44 | 2.67 | 5.18 |
| Fz | 4.80 | 5.64 | 4.88 | 5.60 | 1.58 | 4.99 | 2.62 | 5.73 |
| F4 | 4.66 | 5.59 | 4.65 | 5.37 | 1.60 | 4.96 | 2.65 | 5.64 |
| FC3 | 4.83 | 5.08 | 4.85 | 5.07 | 1.91 | 4.49 | 2.99 | 5.26 |
| FCz | 5.31 | 5.84 | 5.37 | 5.68 | 2.08 | 5.13 | 3.11 | 5.89 |
| FC4 | 4.62 | 5.75 | 4.75 | 5.43 | 1.78 | 5.09 | 2.85 | 5.67 |
| C3 | 4.59 | 4.42 | 4.56 | 4.58 | 2.17 | 3.95 | 3.06 | 4.83 |
| Cz | 5.89 | 5.80 | 5.84 | 5.80 | 2.97 | 5.06 | 3.60 | 5.89 |
| C4 | 4.49 | 5.40 | 4.49 | 4.94 | 0.97 | 7.19 | 2.68 | 5.26 |