Global and regional cerebellar volumes in each group (cm³) and tests for group differences. Mean (SEM) volumes are shown for all volumetric indices in each karyotype group within the core sample along with (1) results of an F test for the omnibus effect of karyotype group on each volume and (2) a heat map of −log10 p values for all unique pairwise t tests for karyotype group differences in each volume.