Gay Men Born Gay Essay Example for Free

audacious Men Born Gay Es rateGay men often claim that nonetheless as children they knew they were somehow different from former(a) boys. Many say that sense even preceded puberty. And yet, though researchers control tried for decades to identify a biological foundation for homo innerism which seems to be present in every(prenominal) human societies they piddle mostly come up dry. rag clues have surfaced gays are more likely to be left-handed, for instance. further in the end, there has been little make that biology is sexual des diminutive. Now new research offers order that there may indeed be a physiological basis for sexual orientation. In a study of 41 brains taken from population who died before age 60, Simon LeVay, a biologist at San Diegos Salk Institute for Biological Studies, found that one tiny region in the brain of homosexual men was more like that in women than that in straight person men. Sexuality is an important part of who we are, notes LeVay, wh o is gay. And now we have a specific part of the brain to flavor at and to study. That specific part is found at the front of the hypothalamus in an area of the brain that is know to help regulate male sexual behavior. Within this site, LeVay looked at four different groupings of cells, technically referred to as the interstitial nuclei of the anterior hypothalamus, or INAH for short. Other researchers had already reported that INAH 2 and 3 were enceinter in men than in women. LeVay hypothesized that one or both of them might vary with sexual orientation as well.Routine autopsies provided the tissue LeVay needed. All 19 homosexual men had died of AIDS. So had six of the 16 presumed straight person men and one of the six women. Although LeVay hoped to include lesbians in his study, he was unable to obtain brains from women identified as such. After careful examination of the brain samples, he found that the INAH-3 areas of most of the women and homosexual men were near the same size. In straight men this region was on average twice as large or about the size of a grain of sand.In the past, much research on sexual orientation has focused on the role of interpersonal relationships in early childhood. Psychological literature is englut with material suggesting that male gayness is triggered by relationships with an overly protective mother or with a distant, even hostile father. Here is a whole other way of looking at the question, says LeVay. These children may already be determined to become homosexual or straightaway. The development plan that is laid out for them may be what causes them to develop certain troubled relationships with their parents. LeVays findings are certain to trigger a good vie of controversy. Many technical aspects of the study are subject to question, as the author concedes. He cannot be certain, for instance, that all the heterosexual men in the control group were heterosexual.And since the AIDS virus attacks the brain, the size difference could be an artifact of the disease. It is also possible that the difference actually has nothing to do with sexual orientation or that it is the result rather than the cause of homosexuality. (2 of 3) My freshman biology students know enough to sink this study, declares Anne Fausto-Sterling, professor of aesculapian science at Brown University. Others are more receptive to LeVays work. It makes sense, says Laura Allen, a neuroanatomist at the University of California, Los Angeles. Finding a difference in the INAH, which influences male sexual behavior, is what one would expect. The finding also has social implications. People who hope that sexual orientation is a choice help legitimize discrimination against homosexuals, says Melissa Hines, a UCLA psychologist. alone if it is immutable, or partly so, then that argues for legal protections. The new study is the second to find some pattern of difference between the hypothalami of gay and straight men. Last year a Dut ch research police squad discovered that another group of neurons in this tiny gland is larger in homosexual than in straight men. But some scientists believe this structure governs daily rhythms rather than sexual behavior, so it is rocky to see any significance in the finding. Investigations of right- and left-handedness have also provided evidence of a physiological distinction.Sandra Witelson, a professor of psychiatry at McMaster University in Hamilton, Ont. , has found more left-handers among homosexual women in her studies than among heterosexual women. Others have made the same observation among men. Since hand preference may be determined in part by the influence of sex hormones on the brain during gestation, Witelson believes these early hormonal influences could also tactical maneuver a role in sexual orientation. Animal studies provide a good deal of evidence for a biological basis of sexual orientation.Through careful manipulation of hormone levels in newborn rats, R oger Gorski, a neuroendocrinologist at UCLA, has been able to produce male rodents that demonstrate feminine behavior. Other researchers, working with mice, have noted that female fetuses that develop between two male fetuses in a litter come out of the closet to be masculinized to some degree by their brothers testosterone. They look more like males than females, mature more slowly, have fewer reproductive cycles as adults and are less attractive to male mice. In many species, peculiarly among mammals, homosexual-like activity is an integral part of social interaction.As any cattle rancher can attest, cows much mount each other. Apparently this ensures that all the females coordinate their reproductive cycles and then produce their calves at the same time. Female rhesus monkeys mount other females as a way of establishing a dominant order in their troops hierarchy. (3 of 3) Researchers estimate that a third of American males experiment sexually with each other during their teen years, even though approximately 9 out of 10 eventually settle into relationships with girls.But both men and women may switch gears later on or be bisexual passim life. There are some people in whom sexual orientation does not maintain itself, says June Reinisch, conductor of the Kinsey Institute for Research in Sex, Gender and Reproduction at Indiana University. Its not a press of what they prefer its whom they fall in crawl in with. She cites the example of a woman who cut back in love with and was married to a man for 10 years, then at the age of 30 fell in love with a woman and spent 11 years in that relationship, and at 41 fell in love with a man.Clearly, even if sexual orientation does have a biological basis in the brain, it is not necessarily fixed. All of us believe that genetic and hormonal influences are abstruse in homosexuality, says Reinisch, but theres also an interaction with the environment. Over the years much research on homosexuality has been motivated b y a desire to eradicate the behavior rather than understand, let alone celebrate, diversity.