A gay brain

Gene controlling fear discovered 20 Nov 05 Health. The BBC is not responsible for the content of external internet sites. We report multimodal magnetic resonance imaging data, including cortical thickness (Cth), subcortical volumes, and resting. One-Minute World News.

Karolinska Institute. When these results were collected, it was found that lesbians and heterosexual men shared a particular "asymmetry" in their hemisphere size, while heterosexual women and gay men had no difference between the size of the different halves of their brain.

They found that the straight men and gay women had asymmetrical brains; that is, the cerebrum (the largest part of the brain, which is responsible for thought, sensory processing, movement and. The brains of gay men and women look like those found in heterosexual people of the opposite sex, research suggests.

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The study suggests sexual orientation may be set in the womb. Most Popular Now 56, people are reading stories on the site right now. E-mail this to a friend Printable version. Ghost town. Key brain regions contributing to this classification included the precentral gyrus, precuneus, and prefrontal cortex, among others.

A UK scientist said this was evidence sexual orientation was set in the womb. As far as I'm concerned there is no argument any more - if you are gay, you are born gay Dr Qazi Rahman Queen Mary, University of London Scientists have noticed for some time that homosexual people of both sexes have differences in certain cognitive abilities, suggesting there may be subtle differences in their brain structure.

The amygdala, he said, was important because of its role in "orientating", or directing, the rest of the brain in response to an emotional stimulus - be it during the "fight or flight" response, or the presence of a potential mate.

In other words, structurally, at least, the brains of gay gay were more like heterosexual women, and gay women more like heterosexual men. The Swedish study, published in the Proceedings of the National Academy of Sciences journal, compared the size of the brain's halves in 90 adults.

Biological sex differences in brain function and structure are reliably associated with several cortico-subcortical brain regions. A group of 90 healthy gay and heterosexual adults, men and women, were scanned by the Karolinska Institute scientists to measure the volume of both sides, or hemispheres, of their brain.

Proceedings of the National Academy of Sciences. The brain region that showed the most consistent sexual orientation‐related differences in both male and female homosexuals was the calcarine sulcus. As far as I'm concerned there is no brain any more - if you are gay, you are born gay.

Gay men and heterosexual women had halves of a similar size, while the right side was bigger in lesbian women and heterosexual men. This is the first time, however, that scientists have used brain scanners to try to look for the source of those differences.

In heterosexual men and gay women, there were more nerve "connections" in the right side of the amygdala, compared with the left. The Karolinska team said that these differences could not be mainly explained by "learned" effects, but needed another mechanism to set them, either before or after birth.

News Front Page. BBC News Updated every minute of every day. Womb environment 'makes men gay' 27 Jun 06 Health. A further experiment found that in one particular area of the brain, the amygdala, there were other significant differences. The study highlighted that patterns of connectivity within distributed brain networks, rather than isolated brain structures, carry information associated with sexual orientation.

While sexual orientation (hetero- versus homosexuality) has been. Non-sex genes 'link to gay trait' 31 Jan 05 Health. Although frequently discussed in terms of sex dimorphism, the neurobiology of sexual orientation and identity is unknown. The reverse, with more neural connections in the left amygdala, was the case in homosexual men and heterosexual women.