People view brown-eyed faces as more trustworthy than those with blue eyes, except if the blue eyes belong to a broad-faced man, according to research published January 9 in the open access journal PLOS ONE by Karel Kleisner and colleagues from Charles University in the Czech Republic.
The study's results attempt to answer a larger question: What makes us think a person's face looks trustworthy? The authors asked study participants to rate male and female faces for trustworthiness based on two features: eye color and face shape. A significant number of participants found brown-eyed faces more trustworthy than blue-eyed, whether the faces were male or female. More rounded male faces, with bigger mouths and larger chins, were perceived as more trustworthy than narrow ones, but the shape of a female face did not have much effect on how trustworthy it appeared to the respondents.
To test which of the two features were more important, the researchers tried a third test, presenting participants with photographs of male faces that were identical except for one difference: eye color. Here, they found that both eye colors were considered equally trustworthy. According to the study, "We concluded that although the brown-eyed faces were perceived as more trustworthy than the blue-eyed ones, it was not brown eye color per se that caused the stronger perception of trustworthiness but rather the facial features associated with brown eyes."
Kleisner K, Priplatova L, Frost P, Flegr J (2013) Trustworthy-Looking Face Meets Brown Eyes. PLoS ONE 8(1): e53285. doi:10.1371/journal.pone.0053285
Public Library of Science: http://www.plos.org
This press release was posted to serve as a topic for discussion. Please comment below. We try our best to only post press releases that are associated with peer reviewed scientific literature. Critical discussions of the research are appreciated. If you need help finding a link to the original article, please contact us on twitter or via e-mail.
From Dr Strangelove and water fluoridisation to climate change, scientific method and facts are not always enough to win over the sceptics
On a blog post at PLOS, the tropical disease expert Peter Hotez and postdoctoral fellow Jennifer Herricks take a run through the data on the biggest killers of children around the world in 2013, part of a new dataset from Global Burden of Disease study published in the January Lancet.
Tory MP David Tredinnick seems to believe that astrology could inform and improve UK healthcare. This view is misguided and potentially dangerous
Resistance to vital antimalarial drugs called artemisinins has spread across Burma to the Indian border. If not contained, it could ultimately hit Africa hard
Clostridium difficile sickens nearly half a million Americans annually, killing about 29,000, say federal health officials. They warn hospitals and nursing homes to tighten hygiene protocols.
Study looking at transmission among men who have sex with men recruited 545 participants at high risk of contracting HIV A daily pill can effectively protect gay men against infection with HIV
An experimental therapeutic vaccine from Danish drugmaker Bavarian Nordic helped significantly extend survival in patients with advanced prostate cancer, according to results of a small early-stage trial conducted by the U.S. National Cancer Institute.
Scientists interviewed more than 1,000 men, women and children who were forced into sex work and hard labor. The result is the largest study to detail the health of human trafficking survivors.
Gerbils from Asia rather than black rats were responsible for repeated outbreaks of the bubonic plague in Europe, a study suggests.
The so-called "cuddle-chemical" seems to block the action of alcohol in the brain, preventing the tell-tale signs of drunkenness in rats