Lesbians and bisexual women in the study more closely followed the male patterns. The finding that straight women more so than straight men are likely to get turned on by both sexes could be explained by evolutionary theory, Rieger says. In , Roy Baumeister, a psychologist then at Case Western Reserve University, proposed that the female sex drive evolved to be more malleable than the male sex drive.
Then, in , Canadian researchers studying the genital response to watching videos of human and animal sex suggested that whereas the biological function of arousal in men is to become erect and penetrate women, in women it has historically been to self-protect with lubrication during forced sex, which ostensibly required them to be more automatic and flexible in their arousal to any stimuli. Ancestral women who did not reflexively lubricate would have been more likely to experience injuries or infections that could have rendered them reproductively sterile or resulted in their deaths.
It could be a novelty effect. They were shown objectionable naked images of men and women and then the dilation of pupil was measured. Result has clearly indicated that gay respond when they were shown both male and female images unlike straight persons. Tags: gay infrared lense pupil.
Your email address will not be published. Notify me of follow-up comments by email. Notify me of new posts by email. This doesn't mean that all straight women are secretly bisexual, Savin-Williams warned, just that their subjective arousal doesn't necessarily match their body's arousal. Sex researchers aren't sure why this happens. One theory is that because women have been at risk of being raped throughout history, they evolved to respond with lubrication to any sexual stimulus, no matter how unappealing.
This idea holds that women who did so were less likely to experience trauma or infection after sexual assault, making it more likely that they would survive to pass on their genes. The researchers detail their findings today Aug. The next step, Savin-Williams said, is to look at pupil measurements and genital measurements at the same time, to test how well they correspond.
Eventually, he said, this technology could be used to conduct cross-cultural studies of sexuality, given that pupil dilation is universal and doesn't depend on labels of sexual orientation that may not translate across all languages. The method could even be used to help people who are confused about their sexuality sort through their desires, Savin-Williams said. News U. Politics Joe Biden Congress Extremism. Special Projects Highline. HuffPost Personal Video Horoscopes.
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