Table 3

Single regression analyses associating τ with mean fractional anisotropy values of bilateral regions of interests corrected for age, sex, handedness and DTI protocol^*

	Dependent variable: τ

FA residuals	No.	b ± SE	Statistic	p value	β	R²
Left SLF	196	1.282 ± 2.974	T₁₉₅ = 0.431	0.67	0.031	0.001
Right SLF	196	−8.675 ± 2.910	T₁₉₅ = −2.981	0.003	−0.209	0.044
Left ILF	196	−0.813 ± 2.975	T₁₉₅ = −0.273	0.79	−0.020	0.001
Right ILF	196	3.053 ± 2.967	T₁₉₅ = 1.029	0.31	0.074	0.005
Left CB	196	1.682 ± 2.973	T₁₉₅ = 0.566	0.57	0.041	0.002
Right CB	196	0.234 ± 2.975	T₁₉₅ = 0.079	0.94	0.006	0.001

CB = cingulum bundle; DTI = diffusion tensor imaging; FA = fractional anisotropy; ILF = inferior longitudinal fasciculus; ROI = region of interest; SE = standard error; SLF = superior longitudinal fasciculus.
↵* For each ROI, the effects of age, sex, handedness, DTI protocol and FA values of the other ROIs were regressed out and the standardized residuals were used in the analyses.