Fig. 2From: Cascade process mediated by left hippocampus and left superior frontal gyrus affects relationship between aging and cognitive dysfunctionPath diagram. The age, years of education, 12 regions, 3 WCST scores, and MoCA were set as the observed variables (Additional file 1: Fig. S1). Finally, the path diagram reflected the relationship among the six variables. The solid lines indicate a significant direct effect. Numbers indicate the standardized path coefficientsBack to article page