Table 4.

Summary of age-corrected partial correlations (T-statistics) between MWF and R1 (1/T₁) over different brain white matter regions and pathways. Bold type denotes significant (p < 0.05, uncorrected) correlations.

R1
Region/tract	0–6 months (N = 25; critical T = 2.06)	6–12 months (N = 26; critical T = 2.06)	12–24 months (N = 35; critical T = 2.03)	24–36 months (N = 23; critical T = 2.06)	36–48 months (N = 11; critical T = 2.20)	48–60 months (N = 35; critical T = 2.03)
Body (corpus callosum)	1.11	− 0.92	2.62	0.38	− 0.15	0.13
Genu (corpus callosum)	0.80	− 0.85	1.89	0.96	− 1.24	1.57
Splenium (corpus callosum)	1.36	− 0.96	0.56	− 0.70	− 0.90	0.40
Left cerebellar white matter	1.02	− 0.42	− 0.79	0.48	1.35	− 0.09
Right cerebellar white matter	0.93	− 0.66	0.86	1.46	0.69	− 0.26
Left frontal white matter	1.88	− 0.69	2.63	− 0.37	− 0.04	1.55
Right frontal white matter	1.12	− 0.75	4.26	− 0.17	− 2.41	0.71
Left parietal white matter	1.64	− 1.41	1.12	− 0.61	0.69	0.05
Right parietal white matter	1.57	− 0.87	2.43	− 1.43	0.12	0.17
Left occipital white matter	1.33	− 1.23	0.09	1.08	2.66	1.00
Right occipital white matter	1.62	− 1.32	− 0.96	0.01	1.52	0.51
Left temporal white matter	1.53	− 2.10	1.05	0.07	2.66	0.08
Right temporal white matter	0.74	− 2.06	2.69	− 1.28	1.29	− 0.89
Left cingulum	1.26	− 1.30	2.32	0.68	− 0.88	0.56
Right cingulum	0.59	− 0.15	2.78	0.73	− 1.11	1.25
Left internal capsule	1.04	− 0.59	2.65	0.72	2.01	− 0.17
Right internal capsule	0.78	− 0.79	4.42	− 0.08	2.37	− 0.37
Left optic radiation	0.94	− 2.08	0.09	0.40	2.55	0.82
Right optic radiation	1.12	− 1.26	0.96	− 0.15	0.97	− 0.29
Left corona radiata	1.89	− 1.02	3.35	− 0.13	1.32	− 0.13
Right corona radiata	1.41	− 1.08	4.37	0.47	0.74	1.10