You may think that you will recognize a liar by his eyes, because he is supposed to avoid eye contact while lying. But scientists from the University of Michigan think otherwise. Liars are said to look more intensely into the eyes of the interlocutor while selling their lies than those who tell the truth. But they are betrayed by something completely different.
The researchers are in studies examined 118 videos, where they tried to identify the language and gestures used by dishonest people, and also included testimonies from non-profit organization Innocence Project, which deals with the legal affairs of innocent people who have been wrongfully convicted. About half of the recordings were from court trials, and the other half from YouTube (videos with people giving their opinions about movies). In this way, the researchers found out who lied in court and who lied in YouTube videos (namely, they are people asked about movies, which never existed).
Those who lied are in the majority more winged with hands, have more intense eye contact, they nodded their heads and frowned several times. When the researchers listened to the audio, they found that liars say more than once "am" and use pronouns that distance them from actions such as "he", "she" and no "me" or "we".
Some truth-tellers also used the same gestures, but to a lesser extent: 25 percent of truth-tellers also did so used both hands, liars used their hands in 40 percent. 60 percent of those who told the truth looked directly at the interlocutor, it did the same thing 80 percent liars.
The real nature of the footage was very important to the study. "In laboratory experiments, it is difficult to create an environment that motivates people to lie. At most, we can reward people for lying well - we pay them to convince others that something untrue is true. But in the real world, there is a real motivation to deceive," adds Rada Mihalcea, a professor of computer science and engineering who participated in the project.
So the next time you question someone's statements, watch the hands carefully! If the person will wing them, constantly look you in the eyes, frown and nod their head, you have reason to doubt.
More information:
news.umich.edu