Table 2. Testing mediational effects of bodyweight dissatisfaction within each ROI in Fat-Thin contrast.
Region | Coordinates | IV | DV | β | R2 | ΔR2 | ||
---|---|---|---|---|---|---|---|---|
x | y | z | ||||||
Left AMYG (Fat-Thin) | -29 | -7 | -20 | |||||
Step 1 | BMI | AMYG | .52*** | .27 | ||||
Step 2 | NPS-F | AMYG | .63** | |||||
Step 3 | BMI+NPS-F | AMYG | (NS) BMI + .63** | .40 | .13 | |||
Left DLPFC (Fat-Thin) | -48 | 7 | 36 | |||||
Step 1 | BMI | DLPFC | .61** | .37 | ||||
Step 2 | NPS-F | DLPFC | .55** | |||||
Step 3 | BMI+NPS-F | DLPFC | .61*** + (NS) NPS-F | .37 | 0 |
Note: MPFC = Medial prefrontal cortex; AMYG = Amygdala; DLPFC = Dorsolateral prefrontal cortex. NPS-F = Negative Physical Self Scale-Fatness subscale. IV = Independent variable; DV = Dependent variable; R2 = Determination coefficient; NS = Not significant.
**p < .01,
***p < .001.