ZSCAN9 and psychotic disorder: Finally, we find that all three hits explained a significant proportion of the genetic overlap across g and these factors (Supplementary Data 8), with the largest effect observed for ZSCAN9 for both the Internalizing (% mediated rg = 1.39%, SE = 0.21, p = 3.25E−11) and Psychotic disorders factor (% mediated rg = 1.14%, SE = 0.14, p = 7.39E−16).