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A Video Camera That Can Tell If You Are A Liar, Liar Pants On Fire

Lie detector tests get a bad rep, perhaps because they’re unwieldy, not that accurate, and the province of “Jerry Springer” and “Maury Povich”-type talk shows. But British researchers have been working on a new type of polygraph lie detector, one that could be used more consistently for security and law enforcement purposes. It’s a video camera that uses thermal imaging and algorithms to determine if a person is lying. The camera looks for unconscious ticks like dilated pupils, biting of lips, heavy breathing, wrinkling of noses, and shifty eye movements. It can even sense super subtle things like the swelling of blood vessels. Meaning there’s no need to hook anyone up to it. In tests, the camera was only 75 percent effective in differentiating between lies and the truth. But the researchers think it could be far more accurate in reality. Guess we’ll have to see if the concept catches on. I can already imagine normal people buying this to try to get a read on a shady significant other.

[Newser]
[BBC News]

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