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"Physiological differences of this sort are highly unlikely to be caused by differences in experience or upbringing," said McFadden.
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For male subjects identifying themselves as homosexual, the brain waves were shifted away from those of both the heterosexual males and heterosexual females. "A good way to describe the data from the homosexual males is that they appeared to be hyper-masculinized," said Craig Champlin, associate professor of communication sciences and disorders at the University and co-author of the study.
"This is especially interesting because other recent experiments have also found hyper-masculinization effects in homosexual males. For example, ***** size is greater in homosexuals than in heterosexuals," said Champlin.
"This is especially interesting because other recent experiments have also found hyper-masculinization effects in homosexual males. For example, ***** size is greater in homosexuals than in heterosexuals," said Champlin.
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The authors of the study postulate that the same etiology underlies the volume difference; that perhaps the effects of masculinizing hormones encountered during fetal development may be higher in homosexual women, as in men and could account for the decreased otoacoustic emission volume in both groups. There is some evidence to suggest this could be true since females in male/female fraternal twin pairs that can be exposed to higher concentrations of male hormones during fetal development, have quieter evoked otoacoustic emissions.
Also, I'm editing out the 2nd half of the 2nd article, that talks about epilepsy, since it has nothing to do with this argument and I quoted too much of the medical site I found it on.