Table 2.

Final ROI size (group mean number of voxels and standard deviation across participants) after transforming ROIs into individual space and selecting only gray matter voxels.

	Average ROI size
	Younger	Older	Older (re-defined)	η2
DAN
Left IPS	59 ± 8.81	49 ± 6.35 ∗∗∗	48 ± 6.95 ∗∗∗	0.33
Right IPS	61 ± 5.94	53 ± 6.14 ∗∗	42 ± 7.55 ∗∗∗	0.58
Left OFC	59 ± 6.83	51 ± 8.06 ∗∗	54 ± 8.21	0.15
Right OFC	62 ± 5.81	55 ± 9.50 ∗∗	53 ± 6.20 ∗∗	0.23
DMN
PCC	79 ± 7.18	67 ± 8.76 ∗∗∗	70 ± 7.67 ∗∗	0.28
mPFC	85 ± 6.45	66 ± 8.74 ∗∗∗	55 ± 9.55 ∗∗∗	0.68
Left IPL	53 ± 10.14	49 ± 9.63	59 ± 8.34	0.18
Right IPL	47 ± 8.37	38 ± 7.17 ∗∗	58 ± 6.91 ∗∗∗	0.53
Left MTL	69 ± 7.04	52 ± 13.69 ∗∗∗	53 ± 11.90 ∗∗∗	0.31
Right MTL	68 ± 6.57	52 ± 12.68 ∗∗∗	43 ± 12.79 ∗∗∗	0.46
SN
ACC	75 ± 6.91	42 ± 12.73 ∗∗∗	52 ± 10.29 ∗∗∗	0.70
Left AI	83 ± 7.52	61 ± 7.49 ∗∗∗	57 ± 7.04 ∗∗∗	0.68
Right AI	85 ± 7.51	65 ± 10.06 ∗∗∗	62 ± 9.51 ∗∗	0.65

Average ROI sizes are reported for the nodes defined using an independent cohort of 55 young participants (columns two and three) and only the older participant’s data (column four). Significant differences in ROI size between young and older adults are highlighted (^∗∗∗p < 0.001, ^∗∗p < 0.01). Partial eta squared (η²) is also displayed for each significant comparison. Spatial location of ROI peak voxels for young and older definitions are plotted in Figure 2.