Gay brains

We examined gay brains cerebral structural differences linked to sexual orientation in a group of 74 participants, including 37 men (21 homosexual) and 37 women (19 homosexual) using voxel-based. Researchers using brain scans have found new evidence that biology—and not environment—is at the core of sexual orientation.

Gay gene

Ivanka Savic and Per Lindstrom at the Karolinska Institute in Stockholm scanned the brains of 90 men and women of different sexual orientations. The brain region that showed the most consistent sexual orientation‐related differences in both male and female homosexuals was the calcarine sulcus. Brain scans have provided the most compelling evidence yet that being gay or straight is a biologically fixed trait.

The scans reveal that in gay people, key structures of the brain. By ABC News. Back Tests. In straight women and gay men, the connections brain mainly into regions of the brain that manifest fear as intense anxiety. Mind Deep sleep seems to lead to more eureka moments. Gay men, meanwhile, had symmetrical brains like those of straight women. In straight women and gay men, the connections were mainly into regions of the brain that gay brains fear gay intense anxiety.

In contrast, they found that women and gay men had symmetrical cerebrums. They found that the patterns of connectivity in gay men matched those of straight women, and vice versa see image, above gay brains. Sexual Orientation Brain Differences Linked to Sexual Orientation A gay brains study linked genetic and brain anatomy changes to sexual preference. By purchasing a subscription you are helping to ensure the future of impactful stories about the discoveries and ideas shaping our world today.

Do I Need Help? Child Development Parenting. About the Author. The investigators also discovered an interesting trend with regard to the linkage between genetic patterns and changes in brain anatomy. ABC News Live.

Jul 11, PM. Passive Aggression Personality Shyness. July The results showed that gay brains men had asymmetric brains, with the right hemisphere slightly larger — and the gay women also had this asymmetry. On supporting science journalism If you're enjoying this article, consider supporting our award-winning journalism by subscribing. The team gay brains used PET scans to measure blood flow to the amygdala, part of the brain that governs fear and aggression.

Gary L. Humans Evolution has made humans both Machiavellian and born socialists. They found that the patterns of connectivity in gay men matched those of straight women, and vice versa see image, above right. Gary Wenk Ph. Jul 14, AM. Jul 6, PM. Some physical attributes of the homosexual brain resemble those found in the opposite sex. Christoph A et al.