When it comes to telling when someone is lying, we currently have very few options, but a team of Israeli researchers claims to have come up with something better than anything we’ve seen before.

Using stickers printed on soft surfaces containing electrodes that monitor and measure the activity of muscles and nerves, a team of researchers led by Prof. Dino Levy from Tel Aviv University, discovered that some people involuntarily activate muscles in their cheeks and eyebrows when they lie. No sensors had been able to measure these subtle muscle contractions before, but the innovative ones invented by Prof. Yael Hanein and sold by Israeli company X-trodes proved sensitive enough. Tests revealed a 73% success rate of lie identification, better than any existing technology.

Read More »

The Ayaidah, a Bedouin tribe in north-eastern Egypt is the last to practice the Bisha’h, an ancient ritual used to determine whether a suspect in a crime is innocent or guilty. They have to lick a red-hot spoon or rod in the presence of tribal authorities, and if their tongue blisters, they are guilty, if it’s left unscathed, they are innocent.

Believed to date back to ancient Mesopotamia, Bisha’h was used by most Bedouin tribes throughout the centuries, but all except the Ayaidah eventually abandoned it. The ritual is banned in countries like Jordan and Saudi Arabia, but not in Egypt, although religious groups in the African country view it as unislamic. Considered by many the world’s oldest lie detection system (but definitely not the most accurate), Bisha’h was mostly used in situations where a crime was committed, but there were no witnesses. Suspects had to lick a heated spoon to prove their innocence, and regardless of the result, the verdict could not be contested.

Read More »

Pinocchio may be just a children’s fairy tale, but Spanish scientists at the University of Granada recently investigated the so-called ‘Pinocchio effect’ and found that our noses don’t grow when we tell a lie, but actually shrink a bit.

Dr Emilio Gómez Milán and his team developed a lie detector test that used thermography to tell if people were lying, and found that whenever participants in their research were being untruthful, the temperature of the tip of their nose dropped up to 1.2 degrees Celsius, while the temperature of their forehead increased up to 1.5C. Scientist also found that drop in temperature at nose level actually caused it to slightly shrink, although the difference is undetected by the human eye.

Read More »