As it happens to Pinocchio, your nose indicates that you are lying. But unlike the famous character, the nose does not grow, but the temperature of our face rises, and so does the orbital muscle in the inner corner of the eye. When we make a considerable mental effort, the temperature of our face falls, and when we have an anxiety attack, the temperature increases.
These are some of the conclusions drawn from a study that was conducted in the Department of Experimental Psychology of the University of Granada, which introduced new applications in thermography. By the way, thermography was also used to design the first body map of human emotions.
Thermography is a technique that detects body temperature. It is applied in many fields, such as in industry, in general, the construction industry, and medicine. Thermographic cameras have a wide range of uses: they measure the loss of energy in buildings, they detect respiratory diseases in animals or rabies in raccoons. Thermography was developed in the USA during the Second World War to detect the presence of enemies (night vision).
Why Does The Pinocchio Effect Happen?
Scientists at the Chicago Taste Treatment and Research Foundation discovered that when we lie, we release chemicals called catecholamines, which cause inflammation of the internal tissues of the nose.
The lies increase the blood pressure and, consequently, the nose becomes inflamed, appearing slightly red. Experts have observed in non-verbal language that those who are lying tend to rub their noses, either with a quick rubbing under the nose or with a quick and almost imperceptible touch.
In addition, the nose is not the only part of the body that is inflamed, since the penis also does it. As far as we know, Pinocchio only grew his nose when he lied.