Understanding how the brains of geniuses work provides further insight into the dopaminergic personality, and the different ways it can manifest itself. We’ve already seen the impulsive pleasure-seeker who has difficulty maintaining long-term relationships and is vulnerable to addiction. We’ve also seen the detached planner who would rather stay late at the office than enjoy time with friends. Now we see a third possibility: the creative genius—whether painter, poet, or physicist—who has so much trouble with human relationships that he may appear to be slightly autistic.