Fig. 1From: Cascade process mediated by left hippocampus and left superior frontal gyrus affects relationship between aging and cognitive dysfunctionResults of Wisconsin card sorting test. A Scores of the categories achieved (CA) in the elderly group (EG) was lower than that in the younger group (YG). B Scores of the perseverative errors of Nelson (PEN) revealed no difference between the groups. C Scores of the difficulties of maintaining set (DMS) revealed no difference between the groups. Asterisks indicate significant differences (p < 0.05). Error bars indicate the standard error of meanBack to article page