Figure 7.

FA mediation with scatterplots shown are illustrations of the mediating relationship of FA with age and behavioral measures. Representative scatterplots of sampled brain regions are shown for FA in children (A) 9–12 years old and (B) 5–14 years, where beta is the degree of change in FA per unit change in age. All associations were statistically significant. In each panel, the scatterplot on the top left shows the correlation of FA with age; that on the top right shows the correlation of behavioral measure (CPT Hit Reaction Time or Design Copy Process score) with age; and that on the bottom right shows the correlation of behavioral measure with FA. Effect size for A (top) was −2.99 and for B (top) was −2.65. Effect size for A (bottom) was 1.61 and for B (bottom) was 2.11. Cd, Caudate; PLIC, posterior limb of internal capsule.