Existing studies of brain structure in individuals with severe antisocial behaviour (e.g., youths with Conduct Disorder, adults with Antisocial Personality Disorder) are not entirely consistent. Therefore, as part of the ENIGMA-Antisocial Behaviour working group (http://enigma.ini.usc.edu/ongoing/enigma-antisocial-behavior/), the aim of my PhD research is to meta-analyse neuroimaging data from research groups across the world to identify brain structure alterations that are reliably associated with antisocial behaviour and factors that influence brain structure in this population. I hope that my findings will improve our understanding of the biological correlates of antisocial behaviour and inform diagnosis, prevention, and intervention.