Table 2.
Analyses of Variance (ANOVA) results for EEG- alpha, HR, HRV measures, fatigue and sleepiness, and CPT.
| df | Error | F | p | |
|---|---|---|---|---|
| EEG- alpha | ||||
| Light | 2.138 | 44.894 | 28.266 | <.001 |
| Session | 1 | 21 | 3.649 | .070 |
| Trial | 2.797 | 58.74 | 72.806 | <.001 |
| Light × Session | 3 | 63 | 3.949 | .015 |
| Light × Trial | 4.774 | 100.26 | 7.901 | <.001 |
| Session × Trial | 3.115 | 65.419 | .574 | .72 |
| Light × Session × Trial | 5.499 | 115.472 | 1.706 | .132 |
| HR | ||||
| Light | 3 | 63 | 10.256 | <.001 |
| Session | 1 | 21 | 5.507 | .026 |
| Trial | 5 | 105 | .295 | .915 |
| Light × Session | 2.064 | 43.351 | .337 | .723 |
| Light × Trial | 6.626 | 139.153 | .398 | .894 |
| Session × Trial | 5 | 105 | .292 | .916 |
| Light × Session × Trial | 7.337 | 154.078 | 0.633 | .736 |
| LF | ||||
| Light | 2.07 | 43.468 | 7.428 | .002 |
| Session | 1 | 21 | .145 | .707 |
| Trial | 2.133 | 44.802 | 4.792 | .012 |
| Light × Session | 2.043 | 42.908 | .234 | .797 |
| Light × Trial | 6.357 | 133.491 | .768 | .603 |
| Session × Trial | 2.604 | 54.68 | 2.263 | .1 |
| Light × Session × Trial | 5.453 | 114.521 | 1.261 | .283 |
| HF | ||||
| Light | 1.843 | 38.709 | .444 | .629 |
| Session | 1 | 21 | 2.039 | .168 |
| Trial | 2.316 | 48.627 | 9.84 | <.001 |
| Light × Session | 2.216 | 46.531 | .071 | .946 |
| Light × Trial | 3.932 | 82.575 | 1.2 | .317 |
| Session × Trial | 2.264 | 47.553 | .482 | .644 |
| Light × Session × Trial | 5.713 | 119.977 | 1.333 | .25 |
| LF/HF | ||||
| Light | 1.831 | 38.451 | 5.636 | .009 |
| Session | 1 | 21 | .508 | .484 |
| Trial | 2.544 | 53.421 | 2.315 | .096 |
| Light × Session | 1.924 | 40.414 | .542 | .579 |
| Light × Trial | 4.294 | 90.177 | 1.547 | .192 |
| Session × Trial | 2.834 | 59.515 | .975 | .407 |
| Light × Session × Trial | 5.605 | 117.695 | 2.277 | .045 |
| Subjective fatigue | ||||
| Light | 3 | 63 | 12.649 | <.001 |
| Session | 1 | 21 | 16.483 | .001 |
| Trial | 1 | 21 | 45.017 | <.001 |
| Light × Session | 3 | 63 | .547 | .652 |
| Light × Trial | 3 | 63 | 12.045 | <.001 |
| Session × Trial | 1 | 21 | 3.141 | .091 |
| Light × Session × Trial | 3 | 63 | 1.294 | .284 |
| Subjective sleepiness | ||||
| Light | 3 | 63 | 20.632 | <.001 |
| Session | 1 | 21 | 3.012 | .097 |
| Trial | 1 | 21 | 9.991 | .005 |
| Light × Session | 3 | 63 | .2 | .896 |
| Light × Trial | 3 | 63 | 5.552 | .002 |
| Session × Trial | 1 | 21 | 13.975 | .001 |
| Light × Session × Trial | 3 | 63 | 3.451 | .022 |
| CPT mean RT | ||||
| Light | 3 | 63 | 17.282 | <.001 |
| Session | 1 | 21 | 11.26 | .003 |
| Trial | 1.548 | 32.51 | 1.303 | .279 |
| Light × Session | 3 | 63 | 5.185 | .003 |
| Light × Trial | 3.856 | 80.972 | 1.795 | .14 |
| Session × Trial | 2.536 | 53.258 | 1.062 | .365 |
| Light × Session × Trial | 5.2 | 109.201 | 1.577 | .17 |
| CPT accuracy | ||||
| Light | 3 | 63 | .497 | .686 |
| Session | 1 | 21 | 1.072 | .312 |
| Trial | 5 | 105 | 48.146 | <.001 |
| Light × Session | 3 | 63 | .664 | .577 |
| Light × Trial | 7.705 | 161.806 | 2.008 | .051 |
| Session × Trial | 4.482 | 94.126 | 1.192 | .32 |
| Light × Session × Trial | 7.876 | 165.405 | .307 | .961 |
Note. Significant differences (p < .05) are shown in bold.