A New Way to Tell If Somebody Is Lying?

A team of psychologists at the University of Utah is working on a new way to tell if someone is being dishonest. Rather than measure a person’s emotional reaction—the way polygraphs do—their method measures a person’s cognitive response. To do this, they record things like pupil dilation, response time, reading time, and errors while people answer true-and-false questions on a computer.
What are they looking for? Very minute changes that signal a person is working hard, since lying, they say, requires more effort than telling the truth does.
John Kircher, who’s working on this eye-tracking method, is excited:

We have gotten great results from our experiments. They are as good as or better than the polygraph, and we are still in the early stages of this innovative new method to determine if someone is trying to deceive you.

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