Researchers studying lie detection at Israel's Tel Aviv University were able to uncover falsehoods told by participants with an accuracy of 73% by looking at facial movements.
Follow Israel Hayom on Facebook and Twitter
The study is notable in that it detects lies with the highest percentage of reliability from any known method to date.
A group of scientists, led by TAU faculty members Professor Yael Hanein and Professor Dino Levy, observed the activity of muscles and nerves in two groups of liars: those who move their cheeks when they lie, and those who move their eyebrows.
"Our study is based on the assumption that facial muscles contort when we lie, and that so far no electrodes have been sensitive enough to measure these contortions," Professor Levy explained in a news release on the experiment.
In your face!
Facial muscles betray a liar 73% of the time, discovered TAU researchers who developed a new #lie-detecting #software based on this concept.
More: https://t.co/g7FiNX8P0S
@hanein @dino_levy1 pic.twitter.com/5afZDwXmai— Tel Aviv University (@TelAvivUni) November 25, 2021
However, the experts were able to measure this sensitive activity using specially-designed stickers developed by Hanein's lab, which monitor facial movements through use of electrodes.
The researchers attached the electrode stickers to the relevant areas of participants' faces, paired them with partners, and gave them a set of headphones through which a word, either "tree" or "line," would be broadcast.
Those with headphones would then lie about which word they heard to their partners.
While the partners' ability to detect lies was mostly random, the stickers could determine falsehoods with 73 percent accuracy, a rate "much better than any existing technology," Levy said.
"Once the technology has been perfected, we expect it to have numerous, highly diverse applications," he predicted.
Subscribe to Israel Hayom's daily newsletter and never miss our top stories!
