Technology has tried to offer up 21st-century solutions, all of which rely to some degree on the body's response to lying. The polygraph is the closest we've come to creating a gold standard in truth evaluation, but it's faced a fair share of criticism over accuracy since it was created in 1921. Humans have long been fascinated with the idea of detecting lies and have spent decades trying to create a device that can unequivocally tell when someone's bluffing. However, it has its limits and shouldn't be used in courtrooms or other high-stakes environments, he said. The experimental app runs on Android phones and isn't available to the public.Īske Mottelson, one of the paper's authors, says the algorithm's ability to detect lies is comparable to that of a polygraph. It gives recipients of questionable messages the option of asking the sender for more information. The algorithm, called Veritaps, flashes a green check mark when truthful statements are entered into a smartphone and notes doubtful information with a red question mark. Phones may one day reveal our not-so-subtle lies. Dishonest interactions often take longer and involve more hand movement than honest ones, according to a research paper ( PDF) to be published Friday. Researchers are finding ways to turn your phone into a lie detector.Ī new machine learning algorithm developed by computer scientists at the University of Copenhagen can identify honesty - and dishonesty - by analyzing how you swipe or tap a smartphone.

Lie detector test online app