Scientists Link Brain Symmetry, Sexual Orientation
By Alexis Madrigal
June 16, 2008 | 11:56:17 AM
A scientist with a brain scanner could figure out your sexual orientation based on the symmetry of your brain, new research from the Stockholm Brain Institute hints.
The findings support the notion that biological factors help determine sexual orientation and leave a specific neuroanatomical signature.
Using MRI scans of gay and straight men and women, the researchers found that people who liked women -- heterosexual men and homosexual women -- had larger right brain hemispheres, while people who liked men -- heterosexual women and homosexual men -- had symmetrical brains. As seen in the image, MRI and PET scans showed a similar pattern in two specific regions of the brain, the right and left amygdalas, which are thought to control fight-or-flight reactions.
"The results cannot be primarily ascribed to learned effects, and they suggest a linkage to neurobiological entities," the researchers, led by Ivanka Savic, write in a paper that will be published in the Proceedings of the National Academy of Sciences tomorrow.
Delicious
Digg
Reddit
Newsvine
Furl
Google
Yahoo
I've been waiting for this.
I've been waiting for the scientific link to be proved, so that it would be obvious - gay folk are made in God's image too, so just work through it.