Fig. 4.

Heritability analysis of the association between PPS and BMI. (A) Heritability of each trait. BMI has multiple estimates, since it was entered into a bivariate analysis with each PPS separately. (B) Genetic correlations between BMI and each PPS. The genetic correlations are positive, because the PPS-s are designed to positively predict BMI. (C) Heritability of the significant phenotypic correlation between BMI and PPS. Horizontal lines depict 95% confidence intervals. Cogn, PPS of cognitive tests; corr, correlation; CT, PPS of cortical thickness; MTL, PPS of medial temporal lobe volume; Pers, PPS of personality tests; SC, PPS of subcortical structure volumes.