Since GAF was not obtained for the HC group, we performed an analysis of covariance with the RSFC estimated from the oxy-Hb signals of the left DLPFC and parietal lobe as the dependent variable, the group (i.e., MDD or HC) as the fixed factor, and the CESD and dosage of antipsychotic medication as covariates. Here, GSTM1 is linked to major depressive disorder.