Table 3.
Frequency band | Index | Alert state | Drowsy state | p value | ||
---|---|---|---|---|---|---|
M | (SD) | M | (SD) | |||
Delta | PLI | 0.286 | (0.067) | 0.367 | (0.109) | 0.00002* |
Degree | 0.277 | (0.092) | 0.325 | (0.110) | 0.022* | |
Eccentricity | 0.261 | (0.052) | 0.245 | (0.054) | 0.147 | |
BC | 0.713 | (0.085) | 0.771 | (0.095) | 0.001* | |
Kappa | 3.406 | (0.802) | 3.772 | (0.961) | 0.041* | |
R | − 0.401 | (0.131) | − 0.409 | (0.142) | 0.774 | |
Diameter | 0.330 | (0.070) | 0.313 | (0.068) | 0.213 | |
Leaf | 0.606 | (0.084) | 0.629 | (0.082) | 0.175 | |
Th | 0.427 | (0.059) | 0.412 | (0.067) | 0.233 | |
Theta | PLI | 0.215 | (0.044) | 0.227 | (0.048) | 0.221 |
Degree | 0.264 | (0.071) | 0.309 | (0.106) | 0.014* | |
Eccentricity | 0.263 | (0.053) | 0.236 | (0.042) | 0.006* | |
BC | 0.712 | (0.071) | 0.747 | (0.089) | 0.033* | |
Kappa | 3.276 | (0.491) | 3.65 | (0.857) | 0.009* | |
R | − 0.421 | (0.095) | − 0.401 | (0.097) | 0.318 | |
Diameter | 0.332 | (0.071) | 0.296 | (0.056) | 0.007* | |
Leaf | 0.608 | (0.075) | 0.63 | (0.067) | 0.122 | |
Th | 0.429 | (0.055) | 0.425 | (0.051) | 0.715 | |
Alpha | PLI | 0.213 | (0.05) | 0.201 | (0.04) | 0.158 |
Degree | 0.296 | (0.098) | 0.281 | (0.098) | 0.804 | |
Eccentricity | 0.235 | (0.048) | 0.251 | (0.062) | 0.184 | |
BC | 0.738 | (0.09) | 0.73 | (0.083) | 0.413 | |
Kappa | 3.422 | (0.788) | 3.441 | (0.873) | 0.842 | |
R | − 0.354 | (0.144) | − 0.387 | (0.14) | 0.682 | |
Diameter | 0.296 | (0.065) | 0.317 | (0.082) | 0.195 | |
Leaf | 0.62 | (0.08) | 0.611 | (0.085) | 0.533 | |
Th | 0.432 | (0.061) | 0.421 | (0.059) | 0.999 | |
Beta | PLI | 0.138 | (0.025) | 0.135 | (0.031) | 0.62 |
Degree | 0.305 | (0.114) | 0.292 | (0.106) | 0.53 | |
Eccentricity | 0.239 | (0.044) | 0.247 | (0.052) | 0.405 | |
BC | 0.753 | (0.078) | 0.726 | (0.082) | 0.093 | |
Kappa | 3.665 | (0.958) | 3.564 | (0.935) | 0.594 | |
R | − 0.401 | (0.118) | − 0.403 | (0.138) | 0.943 | |
Diameter | 0.303 | (0.058) | 0.312 | (0.068) | 0.477 | |
Leaf | 0.63 | (0.069) | 0.624 | (0.093) | 0.708 | |
Th | 0.421 | (0.053) | 0.432 | (0.062) | 0.348 |
PLI phase lag index, BC betweenness centrality, R degree correlation, Th tree hierarchy
Bold text represents significant results (p < 0.05)