| P300 | Latency | Amplitude | ||
| Before | After | Before | After | |
| Mean | 330.3 | 343.8 | 7.36 | 6.06 |
| Median | 321.7 | 336.2 | 7.86 | 4.84 |
| Standard deviation | 43.0 | 38.1 | 2.46 | 3.14 |
| Q1 | 298.7 | 317.2 | 5.81 | 4.08 |
| Q3 | 350.5 | 361.0 | 8.99 | 8.12 |
| N | 16 | 18 | 16 | 18 |
| CI | 21.1 | 17.6 | 1.21 | 1.45 |
| p-value | 0.178 | 0.278 | ||