Using a brain imaging technique, Swedish researchers have shown that homosexual and heterosexual men respond differently to two odors that may be involved in sexual arousal, and that gay men respond in the way women do.
A new study from a researcher at Harvard University finds that gay men are most attracted to the most masculine-faced men, while straight men prefer the most feminine-faced women.
The findings suggest that regardless of sexual orientation, men's brains are wired for attraction to sexually dimorphic faces -- those with facial features that are most synonymous with their gender.
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.
Americans interviewed in Gallup's 2008 Values and Beliefs poll are evenly divided over the morality of homosexual relations, with 48% considering them morally acceptable and 48% saying they are morally wrong.
Previous studies have shown that a subset of gay, lesbian, and bisexual (GLB) and heterosexual adults produce distinctive patterns of phonetic variation that allow listeners to detect their sexual orientation from audio-only samples of read speech. The current investigation examined the extent to which judgments of sexual orientation from speech are related to judgments of masculinity or femininity made by an independent group of listeners. It also examined the acoustic measures that predict perceived sexual orientation and perceived masculinity/femininity....Regression analyses showed that different sets of acoustic measures predicated perceived sexual orientation and perceived masculinity/femininity, and that some acoustic measures were more strongly correlated with one perceptual measure than the other. Results suggest that perceived sexual orientation, perceived masculinity, and perceived femininity are distinct but correlated perceptual parameters.
This is a fascinatingly detailed study that seems to add scientific legitimacy to what many people discuss casually or conversationally with respect to "detecting" LGB orientation in others. It would be interesting to see further research, though, on just how accurate this predictive measure really proves.
The Census Bureau estimates that the percentage of same-sex couples raising children has more than doubled in just 10 years, from 8 percent in 2000, to 19 percent in 2010.