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BRA RPONS DIFFER GAY, STRAIGHT MEN
First, multiple sexually differentiated behavral, physlogil, or even morphologil tras are signifintly different homosexual and heterosexual populatns.
Bee some of the tras are known to be anized by prenatal steroids, cludg ttosterone, the differenc suggt that homosexual subjects were, on average, exposed to atypil endocre ndns durg velopment. There is, however, a signifint mory (3–10% acrdg to many timat) of men and women who are exclively attracted to dividuals of their own sex; they are homosexual. Homosexual) is a behavral tra that displays one of the largt gre of sexual differentiatn, given that 90–97% of dividuals of one sex display an attractn that is different om that of the other mechanisms that terme human sexual orientatn have been the subject of heated ntroversi.
” It mt be noted, however, that tryg to unrstand the origs of homosexualy or heterosexualy sentially reprents the same the fluence of a variety of theori rangg om Frdian psychoanalysis to social nstctivism, sexual orientatn has been, and often still is, nsired as beg the rult of social experienc durg early childhood, particular improper teractn wh one's parents (domant or posssive mother, distant or absent father). Furthermore, numero studi have clearly tablished that plasma ncentratns of sex steroids are perfectly “normal” (typil of the gonadal sex) both gay men and lbians (27).