The Load of Lying: Testing for Truth

scientificamerican.com — We may think we know the telltale signs of lying, be it shifty eyes or nervous fidgeting. Professional interrogators look for such tells, too, assuming a suspect’s nervousness betrays his guilt. But interrogation can rattle even the innocent, so nervousness alone cannot distinguish liars from truth tellers. Aug 3, 2009 View in Crawl 4