Tala Ko

Gay men and straight women have similar brains

Posted on: Tuesday, 17 June 2008

“And as they say, it’s in your DNA – you’re gaaaaaaaaaaay!”

Sorry, couldn’t help the song reference.

clipped from news.yahoo.com

LONDON (Reuters) –
Gay men and straight women share some
characteristics in the area of the brain responsible for
emotion, mood and anxiety, researchers said on Monday in a
study highlighting the potential biological underpinning of
sexuality.
Brain scans also showed the same symmetry among lesbians
and straight men, the researchers wrote in the Proceedings of
the National Academy of Sciences
.
Brain scans of 90 volunteers showed that the brains of
heterosexual men and homosexual women were slightly asymmetric
with the right hemisphere slightly larger than the left, Ivanka
Savic and Pers Lindstrom wrote. The brains of gay men and
heterosexual women were not.
Then they measured blood flow to the amygdala — the area
key for the “fight-or-flight” response — and found it was
wired in a similar fashion in gay men and heterosexual women as
well as lesbians and heterosexual men.
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