"Unveiling the Truth: Groundbreaking Technique Exposes Lies"

Researchers from the University of Portsmouth have discovered a simple technique to detect lies by asking suspects to carry out an additional task while being questioned. Previous studies have shown that lying requires more cognitive effort than telling the truth, and by giving individuals a secondary task, their ability to fabricate stories is compromised, making their lies less polished and easier to identify. The study found that liars' stories were perceived as less plausible and less clear than truth tellers' stories, particularly when the liars were given a secondary task and told it was important. The introduction of secondary tasks during interviews could facilitate lie detection, but they need to be introduced carefully to ensure they are not neglected by the liars.