Table 4. The mean amplitude and the 50 percent area latency of the P3 component.
| Amplitudes | Latencies | |||||||
|---|---|---|---|---|---|---|---|---|
| Congruent | Incongruent | Congruent | Incongruent | |||||
| HA | LA | HA | LA | HA | LA | HA | LA | |
| Fz | 2.38(0.95) | 3.90(0.73) | 0.62(0.85) | 3.98(0.81) | 473.14(0.45) | 472.57(0.34) | 518.95(0.38) | 519.24(0.29) |
| FCz | 3.46(0.96) | 5.77(0.89) | 1.24(0.85) | 5.78(1.00) | 485.24(0.29) | 484.86(0.30) | 522.19(0.34) | 522.38(0.33) |
| Cz | 3.82(0.98) | 6.39(0.89) | 1.90(0.86) | 6.83(1.06) | 480.38(0.26) | 480.19(0.19) | 516.29(0.29) | 516.48(0.24) |
| CPz | 4.18(0.89) | 5.71(0.80) | 2.75(0.82) | 6.50(1.01) | 465.71(0.25) | 465.71(0.25) | 504.38(0.30) | 504.76(0.26) |
| Pz | 3.08(0.83) | 3.77(0.85) | 1.97(0.77) | 4.37(1.01) | 448.48(0.36) | 448.48(0.27) | 494.29(0.37) | 494.76(0.29) |
| POz | 0.67(0.68) | 1.37(0.74) | 0.15(0.59) | 1.99(0.87) | 410.95(0.30) | 411.24(0.22) | 468.19(0.66) | 468.38(0.33) |
P3 mean amplitudes in μV (SE) and 50 percent area latencies in ms (SE) during the congruent and incongruent conditions, separated by low-altitude (LA) and high-altitude (HA) group, at six midline electrodes (Fz, FCz, Cz, CPz, Pz, POz).