Gays brains are different!  

redmustang91 57M  
8701 posts
3/13/2006 8:33 am
Gays brains are different!

There is a complex interaction between biology and culture, but there are new findings that brains of gay men differ in their responses from straight men. Not that surprising! Where would hair salons, ballet, acting and interior decorating be without gay men?

"It's pretty definitive that biological factors play a role in determining a person's sexual orientation."

Austrian scientists reported this month that switching a single gene was enough to make female fruit flies rebuff males and attempt to mate with other females. Swedish researchers recently found the sexual center of gay men's brains lit up when they sniffed a pheromone-like chemical from men's sweat, but didn't respond to a chemical from women.

And last fall, Italian scientists offered a possible explanation for the persistence of gay genes – even though evolution tends to weed out traits that discourage reproduction. The team from the University of Padua found that mothers and aunts of gay men had more offspring than female relatives of heterosexuals, suggesting genes that influence homosexuality in men may increase fertility in females.

That the evidence comes from such disparate directions leads scientists to suspect several different biological pathways may lead to homosexuality. Both genes and hormones appear to be important. Nor do researchers discount the possibility that social factors may play a role.

"I tend not to be a nature-versus-nurture kind of dichotomist," said Roselli, of the Oregon Health & Science University School of Medicine in Portland. "I think there's probably a very complex interaction that's going on between both biology and the environment that is involved in determining these types of behaviors."

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