To date, no consistent evidence of brain-based sexual dimorphism exists, in part because there are no stable criteria that distinguish sexes reliably or concretely (Fausto-Sterling 1985a). Despite this fact, the theory of sexual dimorphism remains entrenched within Western culture. Experiments are designed around brain organization theory, which posits that the brain is a sexually dimorphic structure prior to birth and lends itself to the sexual differences people experience in their lives — which is not supported by existing data (Jordan-Young 2010: 21). Rebecca Jordan-Young's pivotal book on brain and sex-hormone–based gender research, “Brainstorm: The Flaws in the Science of Sex Differences” (2010), aptly describes various design and methodological problems in the studies discussed

Spearthrower wrote:Not interested in pretending that a vicious troll has anything worth discussing.

You're dismissed. As in, nothing you've got to say amounts to anything other than your imagination, and we can see how that imagination works, and it's vile. Nothing you've got to say on the topic has the least value to the topic. Go bay at the moon somewhere else.

Spearthrower wrote:https://education.nationalgeographic.org/resource/how-science-is-helping-us-understand-gender/
https://blogs.scientificamerican.com/vo ... ansphobia/
https://medicine.yale.edu/news-article/ ... nd-gender/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6677266/
https://www.nature.com/articles/518288a
https://onlinelibrary.wiley.com/doi/abs ... /jne.12562
https://academic.oup.com/cercor/article ... ogin=false
https://academic.oup.com/jsm/article-ab ... ogin=false
https://link.springer.com/chapter/10.10 ... -38909-3_4
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5953012/


Someone has to tell all the world's leading biologists that they don't know what they're talking about because A4H says so... and he says it very confidently and repeats it, so it must be true.

In terms of biology, some scientists think it might be traced to the syncopated pacing of fetal development. “Sexual differentiation of the genitals takes place in the first two months of pregnancy,” wrote Dick Swaab, a researcher at the Netherlands Institute for Neuroscience in Amsterdam, “and sexual differentiation of the brain starts during the second half of pregnancy.” Genitals and brains are thus subjected to different environments of “hormones, nutrients, medication, and other chemical substances,” several weeks apart in the womb, that affect sexual differentiation.

Contrary to popular belief, scientific research helps us better understand the unique and real transgender experience. Specifically, through three subjects: (1) genetics, (2) neurobiology and (3) endocrinology

... the science is clear and conclusive: sex is not binary, transgender people are real. It is time that we acknowledge this. Defining a person’s sex identity using decontextualized “facts” is unscientific and dehumanizing.

while most people are born biologically female or male, rare biological syndromes can result in genital ambiguity. Or a resistance to a sex hormone can result in traits typical of the opposite biological sex.

... existing empirical evidence makes it clear that there is a significant biological contribution to the development of an individual’s sexual identity and sexual orientation.

... new technologies in DNA sequencing and cell biology are revealing that almost everyone is, to varying degrees, a patchwork of genetically distinct cells, some with a sex that might not match that of the rest of their body. Some studies even suggest that the sex of each cell drives its behaviour, through a complicated network of molecular interactions. “I think there's much greater diversity within male or female, and there is certainly an area of overlap where some people can't easily define themselves within the binary structure,” says John Achermann, who studies sex development and endocrinology at University College London's Institute of Child Health.

We report multimodal magnetic resonance imaging data, including cortical thickness (Cth), subcortical volumes, and resting state functional magnetic resonance imaging, from 27 transgender women (TrW), 40 transgender men (TrM), and 80 heterosexual (40 men) and 60 homosexual cisgender controls (30 men). These data show that whereas homosexuality is linked to cerebral sex dimorphism, gender dysphoria primarily involves cerebral networks mediating self–body perception. Among the homosexual cisgender controls, weaker sex dimorphism was found in white matter connections and a partly reversed sex dimorphism in Cth. Similar patterns were detected in transgender persons compared with heterosexual cisgender controls, but the significant clusters disappeared when adding homosexual controls, and correcting for sexual orientation. Instead, both TrW and TrM displayed singular features, showing greater Cth as well as weaker structural and functional connections in the anterior cingulate-precuneus and right occipito-parietal cortex, regions known to process own body perception in the context of self.

neuroimaging studies show that structural and functional changes of the brain result from this sexual incongruence.

Stop Using Phony Science to Justify Transphobia

Actual research shows that sex is anything but binary

mindhack wrote:Thank you Spearthrower, and others, for the effort and info. I was, as a sis white male, initially not at all interested in non-binary stuff, but since the bigots felt the need to construct a new Jew out of transpeople I felt forced to look into it. I’m still learning, but jeez, the kicking down is insane.

"Gay agenda" or "homosexual agenda" is a term used by sectors of the Christian religious right as a disparaging way to describe the advocacy of cultural acceptance and normalization of non-heterosexual sexual orientations and relationships.

Wrote Dick Swaab, a researcher at the Netherlands Institute for Neuroscience in Amsterdam, “and sexual differentiation of the brain starts during the second half of pregnancy.”

Johnny Blade wrote:I would say people who deny the creation are much more likely to support the idea of turning boy into girls. Atheists in particular I think would be very likely to support this idea.

Johnny Blade wrote:I would say people who deny the creation Germany’s right to self-determination are much more likely to support the idea of turning boy into girls. Atheists Jews in particular I think would be very likely to support this idea.