Table 2.

Mean ± standard deviation (SD) of the betweenness centrality (BC) in the lower and upper alpha band, p-values were obtained using permutation testing without correction for multiple comparisons across regions.

MST BC
Name of the area	Group	Mean ± SD	p-values	Change
Lower alpha band
Left precentral gyrus (lPreCG)	Control	0.0454 ± 0.0039	0.034	↑MCI
	MCI	0.0703 ± 0.0050
Left postcentral gyrus (lPoCG)	Control	0.0363 ± 0.0016	0.035	↑MCI
	MCI	0.0636 ± 0.0035
Left superior parietal gyrus (lSPG)	Control	0.0629 ± 0.0043	0.037	↑MCI
	MCI	0.0984 ± 0.0050
Right middle frontal gyrus (rMFG)	Control	0.0266 ± 0.0013	0.041	↑MCI
	MCI	0.0595 ± 0.0043
Right superior parietal gyrus (rSPG)	Control	0.2978 ± 0.0097	0.012	↑MCI
	MCI	0.3627 ± 0.0068
Right temporal pole: superior temporal gyrus (rTPOsup)	Control	0.2673 ± 0.0032	0.012	↑MCI
	MCI	0.3118 ± 0.0041
Right temporal pole: middle temporal gyrus (rTPOmid)	Control	0.2561 ± 0.0027	0.003	↑MCI
	MCI	0.3019 ± 0.0036
Right insula (rINS)	Control	0.2644 ± 0.0020	0.032	↑MCI
	MCI	0.3079 ± 0.0067
Left anterior cingulate and paracingulate gyri (lACG)	Control	0.1077 ± 0.0037	0.002	↓MCI
	MCI	0.0629 ± 0.0034
Upper alpha band
Left superior frontal gyrus, dorsolateral (lSFGdor)	Control	0.0443 ± 0.0034	0.018	↑MCI
	MCI	0.0897 ± 0.0079
Right supramarginal gyrus (rSMG)	Control	0.0593 ± 0.0055	0.012	↑MCI
	MCI	0.0967 ± 0.0059
Right anterior cingulate and paracingulate gyri (rACG)	Control	0.0320 ± 0.0012	0.014	↑MCI
	MCI	0.0722 ± 0.0040
Left middle temporal gyrus (lMTG)	Control	0.0998 ± 0.0096	0.014	↓MCI
	MCI	0.0414 ± 0.0017
Right fusiform gyrus (rFFG)	Control	0.0824 ± 0.0032	0.048	↓MCI
	MCI	0.0586 ± 0.0035
Right parahippocampal gyrus (rPHG)	Control	0.0904 ± 0.0044	0.004	↓MCI
	MCI	0.0539 ± 0.0057

Arrows indicate lower or higher values in the MCI group.