The current set of schizophrenia-risk alleles, which increased the risk for schizophrenia, potentially decreased the KTN1 mRNA expression in BG (e.g., in BRAINEAC), was just a set of volume-shrinking alleles, which well interpreted how a “recessive” association between schizophrenia-risk KTN1 alleles and reduced BG GMVs co-existed with a “dominant” association between schizophrenia and expanded BG GMVs. Here, KTN1 is linked to schizophrenia.