A series of scientific experiments have shown that the hormone testosterone reduced, for reasons unknown, the desire or need to lie, inform lefigaro.fr.
Is lying really based on a biological explanation, especially hormonal? This is the conclusion of a recent study published in PLoS One, conducted by researchers at Bonn University in Germany and that, by virtue of testosterone would stimulate people’s honesty.
Testosterone is considered a male hormone par excellence. This anabolic steroid natural controls sexual function, muscle mass, blood cell production, energy in the body. Women produce them as well, but in much smaller quantities, even if the scale of entire population, the highest concentrations recorded in women can sometimes exceed the lowest levels recorded in some men (hier).
Testosterone has also reputed to increase aggression, risky behaviors and simulation capability. For this reason altogether surprising that testosterone seems to have a positive role in social behavior by encouraging honesty.
To reach this conclusion, Professor Armin Falk and his colleagues turned to 91 male volunteers who were in good health. They were divided into two groups: in the first, 46 men received in the form of a gel applied to the skin, a dose of testosterone, and in the second group, 45 men were given a placebo gel without testosterone. The next day, the researchers measured blood concentrations of testosterone.
The volunteers were then asked to throw the dice in individual cabins. They had to introduce the value of each throw in a computer. The higher the score was the higher amounts they received for their participation in this experiment. Only the person who rolls the dice knew if he lied or not when introduced score computer. But researchers have yet to figure out which of the two groups lied more.
“Statistically, the probability that the dice fall on each of its sides is the same,” explained Professor Bernd Weber, co-author of the study. “If there is a group that there is a drift towards the higher numbers, then we know that participants lied,” he added.
“Clearly, the volunteers treated with testosterone lied less significant compared to those receiving placebo gels,” Professor Armin Falk concluded. Why? Here, researchers resort to conjecture. “Although we have confidence in the results of this study, explaining them is another matter. It seems that testosterone acts on pride, self-esteem and the need to have a positive self-image,” explained Bernd Weber.