Avoidant Personality Disorder, also known as anxious personality disorder, is related to narcissistic personality disorder and personality disorder, and has symptoms including sleep disturbances, photophobia and personality changes. An important gene associated with Avoidant Personality Disorder is PIR (Pirin), and among its related pathways/superpathways are Biogenic amine synthesis and Methadone Pathway, Pharmacokinetics. The drugs Risperidone and Lamotrigine have been mentioned in the context of this disorder. Affiliated tissues include cingulate cortex and cortex, and related phenotype is nervous system.