Table 2.

Thirty-two clusters were generated, based on significance maps of the relationship between group assignment (ALC or NC) and FA. Clusters were defined as regions of the WM skeleton that contained at least 300 adjacent significant voxels from the group difference analysis.

WM CLUSTER	Total Voxels	Cluster Location
32	296	Left superior frontal gyrus
25	1748	Right superior and middle frontal gyrus
27	532	Right middle frontal gyrus
10	1641	Right inferior frontal gyrus
18	1049	Left inferior frontal gyrus (with superior longitudinal faciculus)
20	411	Right anterior limb of internal capsule
31	452	Left genu of the internal capsule
19	1035	Right inferior frontal fasiculous
8	829	Right external capsule and anterior corona radiata
7	7980	Left internal and external capsule (under superior frontal gyrus)
21	443	Anterior-superior corona radiata
4	1381	Left precentral gyrus
6	436	Left superior parietal lobe
1	670	Right supramarginal gyrus and angular gyrus
5	2331	Left supramarginal gyrus
24	422	Right supramarginal gyrus and superior longitudinal faciculus
11	1304	Right precuneus (with posterior cingulate)
9	606	Left precuneus
13	1213	Right posterior corona radiata (with thalamic radiation)
26	337	Right posterior superior corona radiata
2	1437	Left medial temporal lobe (primarily fornix)
3	301	Left middle temporal gyrus
17	452	Left inferior/middle temporal gyrus
14	301	Right fusiform
22	303	Left fusiform
29	403	Left ventral lateral nuclei of the thalamus
30	1098	Left posterior thalamic radiation
12	788	Right pons (including corticospinal tract, cerebellar peduncle)
15	506	Left pons (including corticospinal tract, cerebellar peduncle)
23	392	Right superior cerebellar WM
28	613	Middle cerebellar peduncle (medial to clusters 15, 16)
16	324	Right cerebellar peduncle