NRG1 and psychotic disorder: We observed an association between Neuregulin 1 (NRG1) and auditory hallucinations in patients with psychosis (p = 5.25 × 10−6, Z = 4.40), as well as between the gene encoding pericentriolar material 1 (PCM1) and auditory hallucinations (p = 4.47 × 10−4, Z = 3.32).