The study, led by Gary W. Lewandowski, Jr, found that people who exhibit negative traits, such as unfairness and rudeness, appear to be less physically attractive to observers.
In the study, the participants viewed photographs of opposite-sex individuals and rated them for attractiveness before and after being provided with information on personality traits.
After personality information was received, participants also rated the desirability of each individual as a friend and as a dating partner.
Information on personality was found to significantly alter perceived desirability, showing that cognitive processes modify judgments of attractiveness.
"Perceiving a person as having a desirable personality makes the person more suitable in general as a close relationship partner of any kind," said Lewandowski.
The findings show that a positive personality leads to greater desirability as a friend, which leads to greater desirability as a romantic partner and, ultimately, to being viewed as more physically attractive.
The findings remained consistent regardless of how "attractive" the individual was initially perceived to be, or of the participants' current relationship status or commitment level with a partner.
What would you think of this lady's physical attractiveness if she exhibited bad personal traits?
"This research provides a more positive alternative by reminding people that personality goes a long way toward determining your attractiveness; it can even change people's impressions of how good looking you are," said Lewandowski.
该项由盖里 W 勒万多维斯基负责的研究发现，人们认为，表现出不诚实和粗鲁等恶劣品质的人外表也不够吸引人。