Fig. 5.

Relationships between P2 characteristics and the microstructural properties of the language network.

a: The speed of ipsilateral P2 response in the left hemisphere tended to be related to transverse diffusivity (${\text{λ}}_{┴}$) in the auditory callosal fibers after controlling for age effects (n = 16, Table 3a).

b/c: The latency of averaged contralateral responses was related to longitudinal diffusivity (${\text{λ}}_{\left|\right|}$) in the left (b) and right IFG (c), after controlling for age effects (n = 15, Table 3b).

The plots represent the residuals in each parameter, after regressing out the effect of age. The partial correlation coefficients (r) and the corrected p values are indicated similarly to Table 3, as well as raw (uncorrected) p values.