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. Author manuscript; available in PMC: 2022 Aug 1.
Published in final edited form as: Obesity (Silver Spring). 2021 Jul 5;29(8):1328–1337. doi: 10.1002/oby.23201

FIGURE 4.

FIGURE 4

Mediation analysis represented as a path model diagram. The model shows the relationship between self-reported emotional eating and body fat percentage as mediated by NAcc DBSI-FF across people with normal weight and people with obesity. The total β effect (Path C) represents the effect of the independent variable without mediators (statistically significant). Direct β effect (Path C’) represents the effect of the independent variable with NAcc DBSI-FF included in the model as a mediator (statistically nonsignificant). The indirect effects (Path A-B) represent the effect of the independent variable through the mediator (statistically significant). *p ≤ 0.05 and ***p ≤ 0.01. ACME, average causal mediation effects; ADE, average direct effects; DBSI, diffusion basis spectrum imaging; FF, fiber fraction; NAcc, nucleus accumbens