Figure 2. The age×APOE ε4 effects on fiber bundles. Significant main effect of age (Top), main effect of APOE ε4 genotype (Middle), and age×APOE ε4 interaction (Bottom) on fibers were found (p<0.05, uncorrected). ATR, Anterior thalamic radiation; SLF, Superior longitudinal fasciculus; Hip, cingulum.hippocampus; L, left; R, right.