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Brain scan better than polygraph in spotting lies | KurzweilAI

Brain scan better than polygraph in spotting lies | KurzweilAI

Scanning people’s brains with fMRI (functional magnetic resonance imaging) was significantly more effective at spotting lies than a traditional polygraph test, researchers in the Perelman School of Medicine at the University of Pennsylvania found in a study published in the Journal of Clinical Psychiatry.

When someone is lying, areas of the brain linked to decision-making are activated, which lights up on an fMRI scan for experts to see. While laboratory studies showed fMRI’s ability to detect deception with up to 90 percent accuracy, estimates of polygraphs’ accuracy ranged wildly, between chance and 100 percent, depending on the study.

Source: Brain scan better than polygraph in spotting lies | KurzweilAI