Figure 2: Positive correlations between Montreal Cognitive Assessment (MoCA)-assessed cognitive ability and gray matter volume (GMV) in brain areas affected by the interaction between addiction and rs1137070.
From: MAOA rs1137070 and heroin addiction interactively alter gray matter volume of the salience network

The affected areas included the left orbital frontal cortex and temporal pole (OFC [TPO].L), right temporal pole (TPO.R), and right insula (INS.R).