Gay prenatal treatment

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It is clear, however, that biological factors acting during prenatal life play a significant role in the control of sexual orientation and that homosexuality is not, for most people, the result only of postnatal experiences or a free choice. Multiple studies in humans have shown that this ratio is masculinized smaller in lesbians compared with heterosexual women. By Matthew Hutson Feb. Trends in Cognitive Sciences. Abstract Both sexual orientation and sex-typical childhood behaviors, such as toy, playmate and activity preferences, show substantial sex differences, as well as substantial variability within each sex. Under the influence of a variety of theories ranging from Freudian psychoanalysis to social constructivism, sexual orientation has been, and often still is, considered as being the result of social experiences during early childhood, in particular improper interaction with one's parents dominant or possessive mother, distant or absent father.

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More recent studies demonstrate that similar principles also contribute to determine the sex of the partner that will be the target of these behaviors.

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Possible link between hormone treatment and sexuality: study

Most extensively studied in organizational effects of hormones is congenital adrenal hyperplasia CAH. A candidate gene study of CYP19 aromatase and male sexual orientation. Effects of prenatal and pubertal organizational hormones". Subsequent meta-analysis [ 6 ] suggests a large effect size, and this along with additional cross cultural research in men from Independent Samoa [ 7 ] strengthens the conclusion that non-heterosexual men recall high levels of cross-gendered behavior in childhood. A corollary of this formulation is that ovarian steroids are not required for female-typical development, a point to which we will return. Thus, even with very large samples, results for studies of sexual orientation in relation to finger ratios are not completely consistent.

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Evidence for the existence of a sexually dimorphic nucleus in the preoptic area of the rat. Similarly, occasional homosexual fantasy or behavior might not lead to self identification as non-heterosexual. January 25, - No studies have reported on sexual behavior following prenatal exposure of non-human primates to DES or other estrogens. Treating developing female rats with estradiol, or other estrogens, does not have feminizing effects, but the opposite.

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