I posted
this a while ago about a study suggesting that sociopaths have excessive amounts of dopamine. Another
recent study done at Vanderbilt University has linked the excess dopamine in sociopaths to a hypersensitive reward system that releases as much as four times the normal amount of dopamine in response to either a perceived gain of money upon the successful completion of a task, or to chemical stimulants.
The researchers then suggest that the overactive reward system is to blame for a sociopath's impulsive, risk seeking behavior because "[t]hese individuals appear to have such a strong draw to reward to the carrot that it overwhelms the sense of risk or concern about the stick."
Really?
Apart from this conclusion seeming like a huge stretch, a blatant attempt to try to shoehorn scientific findings into one of the "known" "universal" "traits" of a "sociopath," this just seems wrong. From personal experience, I feel like my risk-seeking behavior stems from a low fear response, or a lack of natural anxiety in potentially dangerous, traumatic, or stressful situations. If I am not afraid of something, I am probably going to take more risks, just like
those children who can't feel pain so end up shoving fingers in their eyes.
A hypersensitive reward system
could explain why sociopaths are allegedly sex fiends, at least compared to the rest of the population. It could also explain why you'll see them at the top of their field, professionally speaking. Sociopaths are probably contributing to society in all sorts of random ways in order to trigger an enormous amount of dopamine flooding through their brain. Risk takers, though? Maybe we are, but I don't think because of this, particularly because an
earlier study at Vanderbilt showed that
low amounts of dopamine were highly correlated with risk taking and drug abuse. Or maybe we have to be goldilocks-esque about this and make sure dopamine levels are
just right?