Gay geics - BBC Science Foc Magaze

Contents:

• SCIENTISTS FD DNA DIFFERENC BETWEEN GAY MEN AND THEIR STRAIGHT TW BROTHERS
• YOUR GOOD HEALTH: WHY IS ONE ‘INTIL’ TW GAY, THE OTHER STRAIGHT?
• THE 'GAY GENE' IS A TOTAL MYTH, MASSIVE STUDY CONCLUS
• GAY GEICSMOST OF BELIEVE THAT WE WERE BORN THAT WAY, BUT IS SEXUAL ORIENTATN OUR DNA? JV CHAMARY GO SEARCH OF THE GAY GENEJV CHAMARYPUBLISHED: MAY 31, 2009 AT 11:00 PMGAY GEICS
• SOME RANDOM THOUGHTS ON ‘GAY GENE’ STUDI
• LARGT STUDY OF GAY BROTHERS HOM ON 'GAY GEN'

SCIENTISTS FD DNA DIFFERENC BETWEEN GAY MEN AND THEIR STRAIGHT TW BROTHERS

In fact, scientists recently intified two specific gen that appear to differ between gay and straight men [1]. In s like this, some might argue that perhaps both tws are actually gay, but one jt hasn’t e out yet. In a study where scientists looked at the sexual aroal patterns of intil tws wh different sexuali—specifilly, where one was gay and the other was straight—they found that gay tws monstrated more genal aroal rponse to same-sex imag, whereas straight tws monstrated more aroal rponse to oppose-sex imag [2].

In theory, this means two people uld rry “gay gen, ” but both of them wouldn’t necsarily be gay pendg on certa environmental factors.

YOUR GOOD HEALTH: WHY IS ONE ‘INTIL’ TW GAY, THE OTHER STRAIGHT?

In some pairs of tws, both might intify as heterosexual, but one tw may not accurately disclose his/her homosexualy. Heterosexual men rpond substantially more to femal than mal, and homosexual men rpond substantially more to mal than femal5, 6, 7, 8; th, on average, genal aroal and pupil dilatn patterns verify men’s reported sexual of all sexual orientatns rpond, on average, wh some level of aroal to erotic stimuli reprentg eher sex.

However, this effect is pecially mon heterosexual women, whereas homosexual women rpond somewhat more to the same sex than other sex. The fdg that heterosexual women are non-specific their rpons to mal or femal, whereas homosexual women rpond more to their preferred sex, was nfirmed wh other measur, cludg reactn time, viewg time, nral activy, and thermography of genalia8, 14, 15, the extent that self-reported differenc intil tws’ sexual orientatns are accurate, their sexual rpons will be siar to those of most heterosexual and homosexual dividuals. Hence, male pairs, we predicted that heterosexual tws would show substantially more sexual rpons to the other sex, whereas the homosexual -tws would show more aroal to the same sex.

In female pairs, we predicted that heterosexual tws would show siar sexual rpons to both sex, whereas their homosexual -tws would show somewhat stronger sexual rpons to the same sex than the other sex. Furthermore, if tws’ sexual rpons reflect general sexual orientatn differenc, then their sexual rpons should be siar effect to the rpons seen unrelated heterosexual and homosexual dividuals. RultsSexual Aroal of Male TwsWe predicted that heterosexual male tws show stronger sexual rpons to the other sex, whereas their homosexual -tws rpond more strongly to the same sex.

THE 'GAY GENE' IS A TOTAL MYTH, MASSIVE STUDY CONCLUS

Heterosexual male tws had more genal aroal to the other sex, and their homosexual -tws showed more aroal to the same sex. Panel A picts 5 heterosexual tws and their 5 homosexual -tws, and panel B picts 94 unrelated heterosexual men and 97 unrelated homosexual men. Their homosexual -tws also rpond signifintly to both sex, but somewhat more so to the same sex, p = 0.

GAY GEICSMOST OF BELIEVE THAT WE WERE BORN THAT WAY, BUT IS SEXUAL ORIENTATN OUR DNA? JV CHAMARY GO SEARCH OF THE GAY GENEJV CHAMARYPUBLISHED: MAY 31, 2009 AT 11:00 PMGAY GEICS

Heterosexual male tws dilated more to the other sex, and their homosexual -tws dilated more to the same sex. Panel A picts 6 heterosexual tws and their 6 homosexual -tws, and panel B picts 123 unrelated heterosexual men and 136 unrelated homosexual men. For tws, penncy of data was acunted for by cludg pairs as a random size imageSexual Aroal of Female TwsWe predicted that heterosexual female tws show siar sexual rpons to both sex, but their homosexual -tws rpond more strongly to the same sex.

Their homosexual female -tws also showed genal aroal to the same sex and other sex, each pared wh basele, although somewhat ls so for the latter, p = 0. Panel A picts 6 heterosexual tws and their 6 homosexual -tws, and panel B picts 77 unrelated heterosexual women and 44 unrelated homosexual women.

Their homosexual female -tws also rpond to both sex, but had stronger rpons to the same sex than the other sex, each pared wh basele, p = 0. Heterosexual female tws showed equal pupil dilatn to both sex, whereas their homosexual female tws rpond more to the same sex. Panel A picts 9 heterosexual tws and their 9 homosexual -tws, and panel B picts 124 unrelated heterosexual women and 103 unrelated homosexual women.

SOME RANDOM THOUGHTS ON ‘GAY GENE’ STUDI

For tws, penncy of data was acunted for by cludg pairs as a random size imageA Comparison of Tws wh Unrelated ParticipantsWe predicted that the difference the tws’ sexual rpons is parable to the difference between unrelated heterosexual and homosexual dividuals.

LARGT STUDY OF GAY BROTHERS HOM ON 'GAY GEN'

In most s, the 95% nfince tervals of heterosexual and homosexual tws’ average rpons clud the means of the rrpondg heterosexual and homosexual unrelated groups (Figs 1–4). However, homosexual female tws dilated more strongly to the same sex than the other sex, as pared wh unrelated homosexual women. DiscsnThe prent study suggts that intil tws wh disrdant self-reported sexual orientatns differ their patterns of physlogil sexual aroal a manner siar to unrelated heterosexual and homosexual dividuals.

In addn, there is creasg evince that mothers n have immunologil reactns that lead to their sons’ homosexualy25, 26, 27. ParticipantsTwsWe advertised for intil tws wh disrdant sexual orientatns via newsletters at UK universi, social media s, onle news s for gay men and lbians, and at three gay Pri ftivals. On a qutnnaire, tws chose tegori to self-intify as “straight, ” “bisexual, ” “gay” or “lbian.