Summary highlights:
The increase in striatal volume in psychopathic individuals is not an artefact of psychiatric comorbidity.
Increased striatal volumes were associated with greater psychopathic traits in males and in a small female sample.
The need for stimulation and impulsivity partly account for the striatal-psychopathy relationship.
J: Larger striatal volume is associated with increased adult psychopathy. Psychiatr Res. 2022 May;149:185-193. doi: 10.1016/j.jpsychires.2022.03.006. Epub 2022 Mar 6.PMID: 35279510
https://pubmed.ncbi.nlm.nih.gov/35279510/