Among non-human mammals, exposure to androgens durg cril perds of velopment leads to gynephilia (attractn to femal), whereas the absence or low levels of prenatal androgens leads to androphilia (attractn to mal). However, humans, retrospective markers of prenatal androgens have only been associated wh gynephilia among women, but not wh androphilia among men. Here, we asked whether an direct ditn of prenatal androgen exposure, 2D:4D, differs between subsets of gay men leated by anal sex role (ASR). ASR was ed as a proxy for subgroups bee ASR groups tend to differ other measur affected by bra sexual differentiatn, such as genr nformy. First, we replited the fdg that gay men wh a receptive ASR preference (bottoms) report greater genr nonnformy (GNC) pared to gay men wh an sertive ASR preference (tops). We then found that Tops have a lower (male-typil) average right-hand dig rat than Bottoms, and that among all gay men the right-hand 2D:4D rrelated wh GNC, ditg that a higher (female-typil) 2D:4D is associated wh creased GNC. Differenc were found between non-exclive and exclive same-sex attractn and GNC, and ASR group differenc on dig rats do not reach signifince when all non-heterosexual men are clud the analys, suggtg greater heterogeney the velopment of non-exclive same-sex sexual orientatns. Overall, rults support a role for prenatal androgens, as approximated by dig rats, fluencg the sexual orientatn and GNC of a subset of gay men.
Contents:
- IS 2D GAY OR TRANS?
- DIFFERENC DIG RATS BETWEEN GAY MEN WHO PREFER RECEPTIVE VERS SERTIVE SEX ROL DITE A ROLE FOR PRENATAL ANDROGEN
- WHY ARE PEOPLE GAY? GAY BY CHOICE OR IS BEG GAY GEIC?
IS 2D GAY OR TRANS?
* is 2d gay *
Heterosexual men had signifintly lower (more male typil) 2D:4D rats than gay men (d =. 2nd to 4th dig rat and a universal mean for prenatal ttosterone homosexual men.
In ntrast, the data do not support a role for prenatal androgens the velopment of differenc sexual orientatn among men, as nclud by the same two meta-analys4, the associatn wh 2D:4D and genr rol among female sexual orientatn, we hypothized that a subset of gay men who are more genr nonnformg may show a larger, ls male-typil, 2D:4D than more genr nformg gay men.
DIFFERENC DIG RATS BETWEEN GAY MEN WHO PREFER RECEPTIVE VERS SERTIVE SEX ROL DITE A ROLE FOR PRENATAL ANDROGEN
A growg body of work dit that anal sex role (ASR) preferenc may serve as a proxy for subgroups of gay men who differ velopment and genr nformy6, 7, 8, 9. Th, the prent study we asked whether gay men wh different ASR preferenc may differ 2D:4D. We hypothized that gay men wh a Bottom ASR (receptive), who tend to be more genr nonnformg (GNC), would have a higher (more female-typil) average dig rat than ASR Tops (sertive), who tend to be more genr nformg.
WHY ARE PEOPLE GAY? GAY BY CHOICE OR IS BEG GAY GEIC?
We predicted that gay men wh a Versatile ASR preference (i. E., GNC and dig rats); of this total, 259 were male and 149 self-intified as gay men [i.
E., (1) dited that they were assigned male at birth, (2) intify wh male genr, (3) intify as gay and 4) report an exclive attractn to mal the last year], 125 of which dited their ASR preferenc, and 122 dited their ASR behavr.