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Facial symmetry may play a role in 'gaydar'

Date:
January 21, 2012
Source:
Dick Jones Communications
Summary:
Researchers examined how perceptions of a person’s sexual orientation are influenced by facial symmetry and proportions. Self-identified heterosexuals had facial features that were slightly more symmetrical than homosexuals. And the more likely raters perceived someone as heterosexual, the more symmetrical that person’s features were.

Facial symmetry could play a role in "gaydar," a new study suggests. Researchers at Albright College in Reading, Pa examined how perceptions of a person's sexual orientation are influenced by facial symmetry and proportions. Self-identified heterosexuals had facial features that were slightly more symmetrical than homosexuals. And the more likely raters perceived someone as heterosexual, the more symmetrical that person's features were.

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"The ability to assess the sexual orientation of others may be an adaptive trait," says Dr. Susan Hughes, an evolutionary psychologist who led the study. "In terms of mate selection and romance, it's crucial to recognize [others' sexual orientation]."

The study showed the photographs of 60 men and women -- 15 straight men, 15 straight women, 15 gay men and 15 lesbians -- to a group of 40 participants (15 men, 25 women) who assessed the sexual orientation of those seen in the photographs. The raters indicated the gender to which the person in the picture was most sexually attracted using a five-point continuum scale (1=only men, 2-mostly men, some women, 3=men and women equally, 4=mostly women, some men, 5=only women).

"We found differences in measures of facial symmetry between self-identified heterosexual and homosexual individuals," says Hughes. "We also found that the more likely raters perceived males as being attracted to women (i.e. holding more of a heterosexual orientation), the more symmetrical the males' facial features were." Likewise, there was a tendency for straight women to be more symmetrical, although it was not statistically significant.

The study also examined sexual dimorphic facial measures -- i.e. how masculine or feminine a face appeared -- and found heterosexual men had overall more masculine features than did gay men. This, too, was used by the raters in assessing orientation; the more masculine a man's face was, the more likely he was perceived as heterosexual.

"We were surprised to find that symmetry played a larger role than masculine/feminine features in assessing sexual orientation," says Hughes. "But it appears that individuals use cues of symmetry to make assessments about one's sexual orientation and may be one of the features that comprise a person's 'gaydar' abilities."


Story Source:

The above story is based on materials provided by Dick Jones Communications. Note: Materials may be edited for content and length.


Journal Reference:

  1. Hughes, S.M., & Bremme, R. The effects of facial symmetry and sexually-dimorphic facial proportions on assessments of sexual orientation. Journal of Social, Evolutionary, and Cultural Psychology, 2011, 5(4), 214-230

Cite This Page:

Dick Jones Communications. "Facial symmetry may play a role in 'gaydar'." ScienceDaily. ScienceDaily, 21 January 2012. <www.sciencedaily.com/releases/2012/01/120121120109.htm>.
Dick Jones Communications. (2012, January 21). Facial symmetry may play a role in 'gaydar'. ScienceDaily. Retrieved December 22, 2014 from www.sciencedaily.com/releases/2012/01/120121120109.htm
Dick Jones Communications. "Facial symmetry may play a role in 'gaydar'." ScienceDaily. www.sciencedaily.com/releases/2012/01/120121120109.htm (accessed December 22, 2014).

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