Face expert’s ability to see deception has him in demand: This guy has studied facial expressions and the muscles of the face for 40-some-odd years. He is considered a human lie detector — he teaches un-aided lie detection to the CIA and the Department of Homeland Security.
His research into deception began with trying to discover who might be lying about attempting suicide. He studied slow-motion-filmed interviews with patients who were trying to conceal suicide plans, which in 1967 led to his discovery of micro-expressions.
He then went to remote villages in New Guinea, where he showed pictures of faces to isolated tribes to find out which aspects of non-verbal communication are universal. Ekman found that the natives recognized the seven emotions with clear facial signals, leading to his belief that facial expressions are connected to emotions.
The article is fascinating.