TABLE 5.

GMV values across HCs, SCD, and aMCI groups.

Region (aal)	Peak MNI coordinate			F/t	Cluster number
	x	y	z
ANOVA
L middle frontal gyrus	−30	9	33	26.1047	143
R superior parietal lobule	24	−60	72	30.7415	112
R middle temporal gyrus	39	−60	12	27.6392	88
L superior frontal gyrus	−15	24	66	38.0666	85
SCD < HCs
R middle temporal gyrus	39	−60	12	−7.7543	40
L superior frontal gyrus	−15	24	66	−7.2529	35
R superior parietal lobule	15	−60	75	−5.7876	24
aMCI < HCs
L superior frontal gyrus	−15	9	51	−4.8495	43
R superior parietal lobule	24	−69	63	−5.1014	30
SCD < aMCI
R middle temporal gyrus	39	−54	9	−4.8384	72
R superior parietal lobule	15	−60	75	−5.9125	57
L superior frontal gyrus	−15	24	66	−8.7607	43
SCD > aMCI
L precentral gyrus	−36	−3	33	5.8708	44

Note: Brain regions showed significant differences in GMV of the DAN across three groups (TFCE‐FDR corrected, cluster size >80 voxels, p < 0.05) and results of post hoc analysis in voxel‐wise analysis (Bonferroni corrected, cluster size >20 voxels, p < 0.05).

Abbreviations: aMCI, amnestic mild cognitive impairment; HCs, healthy controls; L, left; R, right; SCD, subjective cognitive decline.