Anterior Cingulate Gyrus, and the Hypothalamus. Occipital alpha power showed similar effects, but for different brain regions (Caudate, Nucleus Accumbens, Hippocampus; Supporting Information Figure S4). The significant SNPs were frontal cortical tissue eQTLs for MTERF4, GNL3, and ITIH4; the latter two being schizophrenia/bipolar disorder liability genes at 3p21. Significant SNPs for occipital power were cortical‐tissue eQTLs for genes IL1RL1, IL18R1, CLHC1, GLYCTK, and ITIH4. Supporting Information Table S3 lists the eQTL effects.