New Study Shows Beauty Really Is In the Eye of the Beholder

This is a screenshot from the "Rate That Face" online experiment found at

A new study in twins shows that differences of opinion about attractiveness are the result of personal experiences unique to the individual.

Of course, there are some aspects of attractiveness that are pretty universal and may even be coded into our genes, according to the researchers. For example, they note that people tend to prefer faces that are symmetric.

But beyond such limited shared preferences, people really do have different “types,” according to the study, which was published in the Cell Press journal Current Biology.

“We estimate that an individual’s aesthetic preferences for faces agree about 50 percent, and disagree about 50 percent, with others,” write joint leaders of the study, Drs. Laura Germine of Massachusetts General Hospital and Harvard University and Jeremy Wilmer of Wellesley College.

“This fits with the common intuition that on the one hand, fashion models can make a fortune with their good looks, while on the other hand, friends can endlessly debate about who is attractive and who is not.”

While past research on the way people respond to faces has focused primarily on universal features of attraction, this new study focuses on where disagreements over facial attractiveness come from.

To tackle this question, the researchers first studied the face preferences of more than 35,000 volunteers who visited their science website They then used the insights gained to develop a test of the uniqueness of an individual’s face preferences.

They then tested the preferences of 547 pairs of identical twins and 214 pairs of same-sex, non-identical twins by having them rate the attractiveness of 200 faces.

Comparisons between identical and non-identical twins allowed the researchers to estimate the relative contribution of genes and environments to face preferences.

Prior studies of twins and families have shown that virtually every human trait — from personality to ability to interests — is, to some degree, genetically passed down from one generation to the next. In fact, the researchers even found this in an earlier study for another aspect of face processing: the ability to recognize faces.

In contrast, the new study shows that the origin of the “eye of the beholder” — the uniqueness of an individual’s face preferences — is mostly based on experiences, not genes. Those experiences, moreover, are highly specific to each individual, the researchers noted.

“The types of environments that are important are not those that are shared by those who grow up in the same family, but are much more subtle and individual, potentially including things such as one’s unique, highly personal experiences with friends or peers, as well as social and popular media,” Germine said.

In other words, it’s not about the school you went to, how much money your parents made, or who lived next door. That pretty face you see has a lot more to do with those experiences that are truly unique to you — the faces you’ve seen in the media, the unique social interactions you have every day of your life, or the face of your first boyfriend or girlfriend.

The researchers say that the large impact of personal experience on individual face preferences “provides a novel window into the evolution and architecture of the social brain.”

They add that future studies could look more closely at which aspects of the environment are most important in shaping our preferences for certain faces and for understanding where our preferences for other things — like art or music — come from.

Source: Cell Press

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