Are children poor liars? Do you think you can easily detect their lies? Developmental researcher Kang Lee studies what happens physiologically to children when they lie. They do it a lot, starting as young as two years old, and they're actually really good at it. Lee explains why we should celebrate when kids start to lie and presents new lie-detection technology that could someday reveal our hidden emotions.

Kang Lee: Can you really tell if a kid is lying?

Can you really tell if a kid is lying?

By age 4, over 80% of children lie. This milestone in development signals growing cognitive skills, such as theory of mind.

Transdermal optical imaging reveals hidden emotions by detecting facial blood flow changes, offering a new gateway to truth.

Childhood lies are a complex mix of emotions and cognitive skills, challenging adults' ability to discern truth from fiction.

Kang Lee announces innovative lying and hidden emotion-revealing technology

psychology

communication