Exposing liars by distraction

Published on May 12, 2022

It is well documented that lying during interviews takes up more cognitive energy than telling the truth.  A new study found that investigators who used this finding to their advantage by asking a suspect to carry out an additional, secondary, task while being questioned were more likely to expose lie tellers. The extra brain power needed to concentrate on a secondary task (other than lying) was particularly challenging for lie tellers.

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