"I'm not denying that bisexual behavior exists," Michael Bailey, a psychologist at Northwestern University and senior author of the 2005 study, told the press at the time, "but I am saying that in men there's no hint that true bisexual arousal exists."
Now, he and his colleagues are saying quite the opposite. They've conducted a new study, published online in the journal Biological Psychology, called "Sexual arousal patterns of bisexual men revisited." Upon this visit, they found more than just a hint of male bisexuality.
Much more stringent criteria were used to recruit bisexual male study participants this time around. "Last time, they got their guys from an ad in an urban newspaper read by a hipster crowd," Allen Rosenthal, a Ph.D. candidate in psychology and the lead author of the new study, told Life's Little Mysteries. This time, instead of relying on self-reporting of sexual orientation, men only qualified as bisexuals if they had had sex with at least two members of each sex and had carried on a romantic relationship of at least three months with a member of each sex. [Why Do We Have Sex? ]
The participants were subjected to the same genital-sensor-and-porn test as in the 2005 study. (Responses to same-sex male and same-sex female porn are used for comparison rather than same-sex male and heterosexual porn, because researchers have previously found that men of any sexual orientation can be aroused by heterosexual porn. "With using a hetero stimulus, you don't know who they're focusing on," Rosenthal said.)
The results: "Bisexual men in the present study demonstrated bisexual patterns of both subjective and genital arousal," the authors wrote. Another not-yet-published experiment, Rosenthal said, found that bisexual men are significantly more aroused by bisexual porn — porn showing sex between two men and one woman — than are straight or gay men. [What If There Were More Than Two Sexes? ]
Rosenthal believes his new results will be validating to a lot of bisexual men who had heard about the earlier research and felt misrepresented or misunderstood by science.
If they can generate funding for such an experiment, the Northwestern psychologists will scale up their study in order to profile bisexual males of all types.
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