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Posts Tagged ‘heterosexual’

Study Suggests Biological Basis for Lesbianism

Posted by eGZact on October 25, 2007

Scientists reported the first strong physiological evidence that lesbian and bisexual women may be biologically different from heterosexual women.

The researchers at the University of Texas in Austin found that, compared with heterosexual women, the hearing of homosexual and bisexual women tends to be a bit more like that of men.

The findings suggest that homosexual and bisexual women develop in subtly different ways than heterosexual women. Therefore, their brains may also form differently, accounting for their sexuality, the researchers said.

“It’s an indication that other brain sites have also been masculinized,” said Dennis McFadden, a professor of experimental psychology who led the study in today’s Proceedings of the National Academy of Sciences.

The study is the latest to come from the controversial investigation into whether homosexuality has a biological basis. Previous research has found, for example, that a part of the brain believed involved in sexuality appears smaller in homosexual men than in heterosexual men. But no such findings have been reported about homosexual or bisexual women. Read the rest of this entry »

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