| Condition | Pre | Post | ||||
| Quiet | 16.3 | ± | 4.0 | 18.1 | ± | 3.1 |
| Positive | 14.2 | ± | 2.6 | 15.9 | ± | 3.2 |
| Negative | 17.0 | ± | 4.7 | 18.3 | ± | 4.6 |