FIGURE 3.

(A) Regional cortical surface areas showing significant group differences in the correlation between the left cortical surface area and normed verbal fluency scores. Left precentral (p = 0.008) and middle temporal regions (p = 0.002) showed significant effects (corrected for multiple comparisons). Blue-cyan represents negative association; red represents positive association. (B) Graphs showing correlation between cortical surface area (mm²) for the left middle temporal region and verbal fluency performance for controls (left) and patients (right). Dotted lines represent 95% confidence interval (CI) for the mean. The left middle temporal surface area was the most significant predictor of performance with standardized coefficient β = 0.90, p = 0.005; left precentral area only showed a trend toward significance with β = -0.496, p = 0.09 and is therefore not shown here.