Computers Can Detect When Someone Lying

In a study of 40 cases, the computer is able to identify a liar more than 80 percent. Percentage is higher than the traditional way by looking at the movements of a person's body or gestures.

Inspired from the field of psychology that studies human face to get a clue if someone tells a lie, computer scientists try to explore whether the engine computer can also read the visual cues that give signs of a lie. Thus was launched Machineslikeus,

Results so far considered promising. In a study involving 40 conversations recorded, the system automatically analyzes eye movements to identify whether the interview subject has been lying or telling the truth. The results showed that the accuracy rate of 82.5 percent.

Assistant researcher at the Center for Unified Biometrics and Sensors (CUBS), Ifeoma Nwogu who also developed the computer system, said computer system, can provide better accuracy than expert interrogator. The test results revealed that a seasoned expert interrogator, just approaching the accuracy of 65 percent.

"What we want to emphasize here is, whether there are changes in the signals emitted by people when they lie and the machine can detect it? Answer is, yes," said Nwogu.

This research has been published and presented as part of the conference the Institute of Electrical and Electronics Engineers (IEEE) last year on the theme of Automatic Face Recognition and Gesture.