Figure 2. The age×education effects on gray matter volume. (A) Maps of the significant age×education interaction on gray matter volume. A significant main effect of education on gray matter was also found (p<0.05, uncorrected). (B) Scatterplots illustrating the age×education interaction for ORBsupmed.L and ACG.L (q<0.05, FDR-corrected). Specifically, the plots were drawn to illustrate how the GM volume changes within the actual range of age. ORBsupmed.L=left medial orbital superior frontal gyrus; ACG.L=left anterior cingulate and paracingulate gyrus.