Table 3.
T-test results for EEG-alpha measure, mean RT of CPT, HR, HRV measures, fatigue, and sleepiness during each session.
| Pairs | t | p |
|---|---|---|
| Session 1 | ||
| EEG-alpha | ||
| 7343 K – DL | –5.157 | <.001 |
| 2564 K – DL | –3.670 | .001 |
| CPT reaction time | ||
| 3730 K – DL | –3.229 | .004 |
| 7343 K – DL | –4.053 | .001 |
| 2564 K – DL | –3.817 | .001 |
| HR | ||
| 7343 K – DL | 3.253 | .004 |
| 2564 K – DL | 3.862 | .004 |
| LF/HF | ||
| 2564 K – DL | –3.232 | .004 |
| Subjective fatigue | ||
| 7343 K – DL | –3.893 | .001 |
| 2564 K – DL | –3.792 | .001 |
| Subjective sleepiness | ||
| 7343 K – DL | –5.694 | <.001 |
| 2564 K – DL | –4.557 | <.001 |
| Session 2 | ||
| EEG-alpha | ||
| 3730 K – DL | –3.255 | .004 |
| 7343 K – DL | –8.339 | <.001 |
| 2564 K – DL | –6.485 | <.001 |
| 3730 K – 7343 K | 6.366 | <.001 |
| 3730 K – 2564 K | 4.172 | <.001 |
| CPT mean RT | ||
| 7343 K – DL | –6.014 | <.001 |
| 2564 K – DL | –6.074 | <.001 |
| 7343 K – 3730 K | –3.029 | .006 |
| HR | ||
| 3730 K – DL | 4.372 | <.001 |
| 7343 K – DL | 4.428 | <.001 |
| 2564 K – DL | 3.619 | .002 |
| Subjective fatigue | ||
| 7343 K – DL | –4.302 | <.001 |
| 2564 K – DL | –3.223 | .004 |
| Subjective sleepiness | ||
| 3730 K – DL | –3.111 | .005 |
| 7343 K – DL | –5.936 | <.001 |
| 2564 K – DL | –5.905 | <.001 |
Note. Only comparisons that were statistically significant are shown in the table. Bonferroni correction was applied and p ≤ 0.006 was set as statistically significant.