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Finn Wolfhard tried a lie detector test.

Canadian actor and musician Finn Wolfhard

Finn Wolfhard tried a lie detector test.

A lie detector revealed Wilmer doesn't pee in the shower! 😂

Wilmer Valderrama

A lie detector revealed Wilmer doesn't pee in the shower! 😂

Not gonna lie! Dua sails through a polygraph! 👍

Not gonna lie! Dua sails through a polygraph! 👍

Can she fool a lie detector?

Can she fool a lie detector?

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polygraph

A polygraph, popularly referred to as a lie detector, measures and records several physiological indices such as blood pressure, pulse, respiration, and skin conductivity while a person is asked and answers a series of questions. The belief underpinning the use of the polygraph is that deceptive answers will produce physiological responses that can be differentiated from those associated with non-deceptive answers. There are, however, no specific physiological reactions associated with lying, making it difficult to identify factors that separate liars from truth tellers. Polygraph examiners also prefer to use their own individual scoring method, as opposed to computerized techniques, as they may more easily defend their own evaluations.

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