Homosexuality: nature or nurture?

The LA Times reports on a study that joins the existing literature on the alleged biological underpinnings of homosexuality.

The brains of gay men resemble those of straight women, according to research published today that provides more evidence of the role of biology in sexual orientation.

Using brain-scanning equipment, researchers said they discovered similarities in the brain circuits that deal with language, perhaps explaining why homosexual men tend to outperform straight men on verbal skills tests — as do heterosexual women.

The area of the brain that processes emotions also looked much the same in gay men and straight women — and both groups have higher rates of depressive disorders than heterosexual men, researchers said.

The study in Proceedings of the National Academy of Sciences, however, found that the brain similarities were not as close in the case of gay women and straight men.

This other LA Times article reviews some of this ‘homosexuality as biology’ literature.

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