Table 2.

Diffusion correlations with language and processing speed measures^a

	Vocabulary Knowledge	Picture Vocabulary	Connections Simple
L arcuate fasciculus FA (nodes 73–88)	0.38***b	0.31**	0.16
L arcuate fasciculus MD (nodes 40–85)	−0.18	−0.14	−0.41***b
R arcuate fasciculus MD (nodes 51–75)	−0.10	−0.08	−0.44***b
L frontoparietal SLF MD (nodes 1–11)	−0.06	−0.10	−0.28**b
R frontoparietal SLF MD (nodes 84–100)	−0.07	−0.04	−0.31**b

^aCorrelations of diffusion metrics averaged across tract segments with Z-transformed scores on the cognitive metrics. L, Left; R, right. Bootstrap (1000) CIs for significant correlations: L arcuate FA (nodes 73–88) with Vocabulary Knowledge [0.17, 0.55] and Picture Vocabulary [0.12, 0.48]; L arcuate MD (nodes 40–85) with Connections Simple [−0.57, −0.23]; and R arcuate MD (nodes 51–75) with Connections Simple [−0.60, −0.25].

^bThe nodes in the defined region exhibited significant correlations in permutation testing across the entire tract.

**p < 0.01;

***p < 0.001.