I remember a news story from ten or more years back where there were plans to use the latest in brain scan technology to study tendencies toward criminal behavior. But plans for that study were scrapped after much protest from some groups who didn’t want such studies performed.
Lots of controversy surrounding the study of the brain and human behavior.
The problem is....they’re already used brains. We don’t know the changes in the brain since birth. What makes the brain change....obviously repeated stimulation plays a role