Skip to main content
. 2020 Nov 1;2020:8894868. doi: 10.1155/2020/8894868

Figure 4.

Figure 4

Conceptual diagram of mediation analysis. (a) Graphical representation of a mediation analysis model with one mediator. Total effect of X on Y (c) = indirect effect of X on Y through M (a × b) + direct effect of X on Y (c′). (b) The mediation analysis between serum TG level (X) and 3-back accuracy (Y), with SN-vSMN connectivity as the mediator (M). Path coefficients with P values (∗P < 0.05 and ∗∗P < 0.01, respectively). Abbreviations: TG: triglyceride; SN: salience network; vSMN: ventral sensorimotor network.