Table 2. Top 15 Variables by NMI Score: Mean Values Per Data-Driven Group (z-Scored) and Collapsed When Bilateral Representation Occurred.

Rank	Variable	NMI Score	Group 1	Group 2	Group 3	Group 4
1	Age	0.13	−0.89	1.22	−0.33	0.11
2	Processing speed	0.13	−0.66	−0.28	0.50	−0.07
3	Volume right pallidum	0.12	0.64	0.09	−0.76	0.41
4	FA right arcuate fasciculus	0.11	−0.72	−0.28	−0.13	0.53
5	FA right cingulum bundle	0.11	−0.67	−0.45	−0.17	0.62
6	Thickness superior frontal gyrus (right reported as more influential)	0.11	0.46	−0.83	0.28	−0.07
7	FA left uncinate fasciculus	0.11	−0.60	−0.20	−0.07	0.40
8	Thickness right inferior parietal gyrus	0.10	0.38	−0.83	0.09	0.13
9	Volume right putamen	0.10	0.93	−0.48	−0.49	0.30
10	Volume right amygdale	0.10	0.93	−0.47	−0.51	0.32
11	Volume of the right hippocampus	0.09	0.68	−0.38	−0.51	0.37
12	FA left anterior thalamic radiations	0.09	−0.42	−0.27	−0.25	0.51
13	Thickness left superior parietal gyrus	0.09	0.26	−0.86	0.16	0.13
14	Part 3 total correct – TASIT	0.08	−0.48	−0.94	0.24	0.38
15	FA corpus callosum (premotor division)	0.08	−0.70	−0.61	0.15	0.41

Note: Working memory NMI score=0.03, Part 1 total correct – TASIT NMI score =0.02, and Part 2 total correct – TASIT NMI score=0.03.