Regions showing ALFF differences between SIVD and control groups.

Note: Comparisons were performed at P<.01, corrected for multiple comparisons using AlphaSim program. X, y, z, coordinates of peak locations in the MNI space. Maximum t, statistical value of peak voxel showing ALFF differences between the two groups. The positive maximum t-score represents an increase, and the negative maximum t-score represents a decrease. Abbreviations: MNI = Montreal Neurological Institute Coordinate System or Template; PCu = precuneus; ACC = anterior cingulate cortex; Ins = insula; Hip = hippocampus; BA = Brodmann's area.