Want to know if someone is lying to you? Michigan develops a … – LaRed21 (press release) (Registration)

LIES

A new study from the University of Michigan revealed gestures and speech more common in someone lying, detected through a software does not need to be in contact with the person to function.

December 28, 2015 at 12:45 hours

The study, led by Dr. Mihai Rada Mihalcea and Burz , professors of computer science and engineering at the University of Michigan, revealed the habits of people lying and used them to create software that detects lies in an innovative way.

The team of scientists studied the videos of cases of high-risk cuts to build a software lie-detector based on real-world data. The prototype considered both the words and gestures of the speaker, and the novelty is that there needs to touch the subject to run

In the experiments, the device had a 75% efficiency. The videos were also analyzed by humans, who managed to realize 50% of the time that the person was lying.

“People are very poor lie detectors,” said Mihalcea. “Not the kind of task that we are naturally good. There are signs that humans are when they are lying, but are not paying the necessary attention to catch them. We do not count how many times the person says ‘I’ or looking up. We focus on a higher level of communication. “

” In laboratory experiments is difficult to create an environment where people feel motivated to lie, “says Mihalcea, explaining the use of the videos . “We can offer a reward to those who lie well, pay them to convince others that something false is true. But in the real world there is no real motivation. “

The software aims to be useful for law enforcement agencies, courts, and even mental health professionals.

ways to tell if someone is lying

Individuals who are lying move over his hands, trying to sound more accurate and look to their questions in the eye more often than those who tell the truth, according the data extracted from the video

The list of behaviors detected in the liars from the University of Michigan is as follows:.

• frowning or grimacing with all the face (30% of the liars they did, while only 10% of those who said they used the truth).
• Looking directly to the questioner (70% vs. 60%).
• Gesturing with both hands at the same time (40% vs. 25%).
• Talk to more vocal fillers like “ah …”.
• distancing action itself is being described with words such as “he” or “she” instead of “I” or “we”.