
Dr. Kent Kiehl uses MRI technology to scan prison inmates for signs of pyschopathy in the hope of discovering a treatment.
One bright morning last April, Dr. Kent Kiehl strode across the parking lot to the entrance, saying, "I guarantee that by the time we reach the gate the entire inmate population will know I'm here." Kiehl - the Doc, as the inmates call him - was dressed in a blue blazer and a yellow tie. He is tall, broad-shouldered, and barrel-chested, with neat brown hair and small ears; he looks more like a college football player, which was his first ambition, than like a cognitive neuroscientist. But when he speaks, in an unexpectedly high-pitched voice, he becomes that know-it-all kid in school who intimidated you with his combination of superior knowledge and bluster.
At thirty-eight, Kiehl is one of the world's leading younger investigators in psychopathy, the condition of moral emptiness that affects between fifteen to twenty-five per cent of the North American prison population, and is believed by some psychologists to exist in one per cent of the general adult male population. (Female psychopaths are thought to be much rarer.) Psychopaths don't exhibit the manias, hysterias, and neuroses that are present in other types of mental illness. Their main defect, what psychologists call "severe emotional detachment" - a total lack of empathy and remorse - is concealed, and harder to describe than the symptoms of schizophrenia or bipolar disorder. This absence of easily readable signs has led to debate among mental-health practitioners about what qualifies as psychopathy and how to diagnose it. Psychopathy isn't identified as a disorder in the Diagnostic and Statistical Manual of Mental Disorders, the American Psychiatric Association's canon; instead, a more general term, "antisocial personality disorder," known as A.P.D., covers the condition.













Comment: Though it is a very well written document, citing various important works on psychopathy and gives an accurate picture of the condition, the following claim may be misleading: While these statistics may be accurate, they are more probably explained by the fact that, while psychopathy is not dependent on family upbringing, a greater percentage of these psychopaths become the criminal types that are more likely to be "discovered". The subclinical types go unnoticed.