To find out, Meloy asked 450 criminal justice and mental health professionals whether they’d ever experienced such odd physical reactions when interviewing a psychopathic subject: violent criminals with all the dials on the mixing desk cranked right up to max. The results left nothing to the imagination. Over three-quarters of them said that they had, with female respondents reporting a higher incidence of the phenomenon than males (84 percent compared to 71 percent), and master’s/bachelor level clinicians reporting a higher incidence

