Crime scene psychopaths reveal themselves through their speech Psycopaths are estimated to make up 1 percent of the population and up to 25 percent of male offenders in correctional settings. NEW YORK Psychopaths are known to be wily and manipulative, but even so, they unconsciously betray themselves, according to scientists who have looked for patterns in convicted murderers’ speech as they described their crimes. The researchers interviewed 52 convicted murderers, 14 of them ranked as psychopaths according to the Psychopathy Checklist-Revised, a 20-item assessment, and asked them to describe their crimes in detail. Using computer programs to analyze what the men said, the researchers found that those with psychopathic scores showed a lack of emotion, spoke in terms of cause-and-effect when describing their crimes, and focused their attention on basic needs, such as food, drink and money. [10 Contested Death Penalty Cases] While we all have conscious control over some words we use, particularly nouns and verbs, this is not the case for the majority of the words we use, including little, functional words like “to” and “the” or the tense we use for our verbs, according to Jeffrey Hancock, the lead researcher and an associate professor in communications at Cornell University, who discussed the work on Monday (Oct. 17) in Midtown Manhattan at Cornell’s ILR Conference Center. (Excerpt) Read more at livescience.com …
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