Men with lower voices are considered more attractive, while women with higher voices are more attractive to men. Women in the role of authority try to lower their voice to make it more masculine. These are the results of voice research conducted by Wrocław psychologists.
Extroverts with a high level of intelligence are most likely to lie. In the study of Polish researchers they most often chose a strategy, in which they used deception to achieve their goals. Introverts (regardless of the level of intelligence) and extroverts with lower IQ used this strategy less often.