Continuing the “sex” theme of this mornings posts a Swedish study, published in the Proceedings of the National Academy of Sciences journal, suggests that the brains of gay men and women look like those found in heterosexual people of the opposite sex.
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 governing emotion, mood, anxiety and aggressiveness resemble those in straight people of the opposite sex.
The differences are likely to have been forged in the womb or in early infancy, says Ivanka Savic, who conducted the study at the Karolinska Institute in Stockholm, Sweden.
Link to read more ( New Scientist, June 16, 2008) Gay brains structured like those of the opposite sex
Source: New Scientist