| formerly Isherwood
Location: San Diego, CA Posts: 14,084 | loser, your contentions were pretty much dismissed as causative during the 50s and 60s. Quote:
In their book Born Gay: the Psychobiology of Sex Orientation , Glenn Wilson, reader in personality at the Institute of Psychiatry in London, and Qazi Rahman, a psychobiologist at the University of East London, declare that “the accumulation of evidence from independent laboratories across the world has shown that the biological differences between gay and straight people cannot be ignored . . . our sexual preference is a fundamental and immutable component of our human nature”.
Wilson and Rahman’s account goes beyond whether there is a gay gene – there is no single gay gene, but genes do contribute – and considers the effect of sex hormones to which foetuses are exposed in the womb. The boldly titled book says the research leaves absolutely no room for parental or societal influence on this intimate trait. Children cannot be seduced or otherwise led into homosexuality and, however overbearing the mother or absent the father, no amount of poor parenting can waylay a child born to walk the path of heterosexuality.
No serious, evidence-based scientist, they charge, would deny that sexual orientation is fixed at birth. The authors also speculate that we face an evolutionary future in which homosexuals become more prevalent. The genes that are implicated in gayness do not just influence sexual orientation – in low doses they might confer personality advantages to heterosexual men (such as making them loyal, empathic and considerate), turning them into attractive mates and thus propagating those genes further.
Rahman says that his view of corrective therapies designed to turn gay men straight is simple – they will never work: “You just can’t do it. If people suggest they can, I ask them, ‘Can you turn someone from straight to gay? Show me the evidence’. But it’s never going to happen, is it?”
Andy Forrest, communications officer for Britain’s Stonewall, a charity that campaigns for gay equality, says the book’s central message rings true for most gays. “Most people I’ve come across say they’ve always been gay and that their upbringing has played no part in whether they are gay or not. They would say it’s an innate part of who they are, not something they need to be ‘cured’ of.”
According to Wilson and Rahman the biological origin of sexual orientation means that discriminating against gays and lesbians is as justifiable as discriminating on the basis of eye colour or ethnicity. They have declined to reveal their own sexual orientations.
So, why are some men born gay? Homosexuality tends to run in families, prompting a search for the so-called gay gene. In June biologists in Austria discovered fruit flies can be turned gay by altering a single gene. It is almost impossible that a single gene determining human sexual orientation exists: identical twins, who have identical genes, do not always have the same sexual preferences. But it points to genetic influence.
“Gay men tend to have more gay brothers than straight men,” Rahman says. “Heritability is thought to be around 30 to 40 per cent, which means that around 30 to 40 per cent of the variation in homosexuality is down to genes. Strictly speaking, it’s better than zero (which would imply no role for genes) but that shows there’s significant environmental variance.” And this, Rahman says, is where a “massive misunderstanding of the concept of environment” comes into play. Studies have shown that the popular idea of environment – parental upbringing, peer norms, the family home, schooling – have no effect whatsoever. For example, the psychoanalytical idea that distant fathers or overbearing mothers sabotage their sons’ sexual development is not borne out by evidence.
Wilson and Rahman dismiss such theories as “beyond the pale of science”. In conversation, Rahman is more brutal, dismissing “95 per cent of psychology as rubbish”.
Initial sexual experiences do not appear influential – one study showed boys educated at single-sex boarding schools, where early same-sex experiences are relatively commonplace, are no more likely to become gay than other boys. What about the seduction hypothesis? Men who, as boys, had gay encounters with men have reported that they already knew they were gay before the encounter. Adopted children of gay and lesbian parents are predominantly heterosexual. The missing environmental link, the authors argue, is the womb.
This would fit with findings in the early ‘90 that the brains of gay and straight men differ slightly. Rahman explains: “We argue that genes produce differences in the brains of pre-straight and pre-gay foetuses and those differences might affect certain receptors in the brain that influence the activity of male sex hormones.”
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