Gay Brains Reveal Straight Ways

gaybrain.jpg
Science’s foray into sexual explanation continues – and may be making headway.

After studying the brains of forty-five subjects, Swedish researchers have concluded that gay men and women’s respective brains resemble those found in heterosexuals of the opposite sex.

First they used MRI scans to find out the overall volume and shapes of brains in a group of 90 volunteers consisting of 25 heterosexuals and 20 homosexuals of each gender.

The results showed that straight men had asymmetric brains, with the right hemisphere slightly larger – and the gay women also had this asymmetry. Gay men, meanwhile, had symmetrical brains like those of straight women.

The team next used PET scans to measure blood flow to the amygdala, part of the brain that governs fear and aggression. The images revealed how the amygdala connected to other parts of the brain, giving clues to how this might influence behaviour.
Depression link

They found that the patterns of connectivity in gay men matched those of straight women, and vice versa (see image above). In straight women and gay men, the connections were mainly into regions of the brain that manifest fear as intense anxiety.

Scientists have yet to discover what actually leads to homosexuality, but this research clearly indicates a biological factor. This, of course, punches holes in right wing arguments of chosen “gay lifestyles,” and the such.

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