Brunner Syndrome, also known as monoamine oxidase a deficiency, is related to conduct disorder and personality disorder. An important gene associated with Brunner Syndrome is MAOA (Monoamine Oxidase A), and among its related pathways/superpathways are Transmission across Chemical Synapses and superpathway of tryptophan utilization. The drugs Antioxidants and Omega 3 Fatty Acid have been mentioned in the context of this disorder. Affiliated tissues include prefrontal cortex and skin, and related phenotypes are cognitive impairment and atypical behavior