Table 1.

Region-of-interest (ROI) volume (mm³) statistics as a function of parcellation scale.

	aal84	parc91	parc230	parc438	parc890	parc1314	parc4320
Median	11800	11200	4536	2372	1156	768	236
Inter-quartile range	10788	10040	3688	1968	888	600	176
Ratio	0.91	0.89	0.81	0.83	0.77	0.78	0.75

Median represents the median volume across all ROIs in each template. Variability in ROI size was assessed using the inter-quartile range. The Ratio measure was calculated as the inter-quartile range normalized by the median.