Table 2. Quantitative results, including the average beta values (i.e., high-memory-load activation) and the average z scores (i.e., DMN connectivity), within the ICA-derived DMN regions in APOE-ε4 carriers and non-carriers.

		Average beta values		Average z scores
Region	Side	APOE-ε4 carriers	APOE-ε4 non-carriers	APOE-ε4 carriers	APOE-ε4 non-carriers
Superior Frontal Gyrus	L	-0.35 ± 0.44	0.05 ± 0.4	0.32 ± 0.14	0.34 ± 0.19
	R	-0.32 ± 0.36	0.09 ± 0.37*	0.28 ± 0.19	0.26 ± 0.15
Middle Temporal Gyrus	L	-0.47 ± 0.62	0.08 ± 0.53	0.48 ± 0.14	0.39 ± 0.22
	R	-0.35 ± 0.51	0.05 ± 0.91	0.42 ± 0.16	0.32 ± 0.17
Precuneus	R	-0.19 ± 0.44	0.14 ± 0.34	0.54 ± 0.11	0.48 ± 0.12
Anterior Cingulate	R	0.1 ± 0.82	0.19 ± 1.05	0.38 ± 0.14	0.27 ± 0.15

*: p < 0.05, compared with APOE-ε4 carriers.

DMN = default mode network; ICA = independent component analysis; L = left hemisphere; R = right hemisphere.