Figure 3. Scatter diagrams of Driving Behavior Questionnaire (DBQ) scores and gray matter volume at the peak locus (MNI coordinates: x = −3, y = 1, z = 70; BA 6, supplementary motor area) found in VBM analysis for executive function capacity.

Panels A, B and C denote DBQ scores for violations, errors and lapses, respectively, during daily driving. Each dot represents each participant. No significant correlation was found (P>0.05/3; one-tailed Pearson's correlation test adjusted by the Bonferroni correction for multiple comparison).