Table 2.

Results of the FC analysis in 13 CN+ and 32 CN− subjects.

	ROI	Bands	Number of links	PLV (mean ± SD)		t-test	Effect size	FC changes	Correlation with
			(motif size)	CN+	CN−	p value †	Cohen’s d	in CN+‡	DMNSUVR §
Intra ROI FC	PCu	Delta	39	0.433 ± 0.024	0.470 ± 0.022	<0.001	1.64	Hypo	−0.582***
Inter ROI FC	PCu - rIPL	Delta	47	0.366 ± 0.008	0.343 ± 0.011	<0.001	2.24	Hyper	0.677***
		Theta	41	0.288 ± 0.015	0.265 ± 0.009	<0.001	2.16	Hyper	0.673***
	PCu - lIPL	Delta	29	0.365 ± 0.011	0.343 ± 0.010	<0.001	2.17	Hyper	0.614***
		Theta	37	0.287 ± 0.009	0.265 ± 0.010	<0.001	2.31	Hyper	0.704***
		Alpha	39	0.264 ± 0.012	0.286 ± 0.014	<0.001	1.72	Hypo	−0.473**

^†The p values were Bonferroni corrected by multiplying by 5 (the number of frequency bands). ^‡FC changes in the CN+ group compared with the CN− group. Hypo, decreased connectivity in the CN+; Hyper, increased connectivity in the CN+. §Correlation coefficient (r) for each FC value with PiB mean standardized uptake value ratio (SUVR) value within the default mode network (DMN) ROIs (DMNSUVR). The asterisks indicate statistically significant correlations (*p < 0.05, **p < 0.01, ***p < 0.001). PCu: precuneus, rIPL: right inferior parietal lobule, lIPL: left inferior parietal lobule.