Hesarissa taas hauska juttu sukupuolisekavista

https://www.hs.fi/hyvinvointi/art-2000005497089.html

Jotenkin tuo asenne ja termistö vaan on huvittava ja asenteellinen. Eikö ole tullut mieleen, ettei nainen olekaan mies lainkaan vaan on vain on kehitysvirheen takia aivot ja kroppa eri paria. Miehen tapauksessa esim. aivojen maskulinisaatio on jäänyt kesken. Asiaa on viime vuosina tutkittukin melkoisesti.

Studies beginning with Zhou in 1995 have found that trans women's brain structure (volume and density of neurons) is similar to cisgender (cis) women's and unlike cis men's, and trans men's is similar to cis men's, even when controlling for hormone use. A 2002 study by Chung suggested significant sexual dimorphism in the BSTc did not become established until adulthood, theorizing that either changes in fetal hormone levels produce changes in BSTc synaptic density and other factors which later lead to the observed differences in BSTc, or the differences are affected by the generation of a gender identity inconsistent with assigned sex. Studies in 2004 (Swaab), 2006 (Gooran), 2008 (Garcia-Falgueras), and 2010 (Rametti) confirmed earlier research finding that gender identity is influenced by brain structure. However, some of these studies are limited as they include a small number of tested individuals.[2] Brain structure differences have also been noted between gay and heterosexual men, as well as lesbian and heterosexual women as part of extensive research on biology and sexual orientation. Studies have also found that both androphilic and gynephilic trans women's brain function and responses are like cis women's and unlike cis men's, or are intermediate between the two. Likewise, studies such as Rametti's have found that trans men have male-like white matter patterns (even before using hormones), regardless of sexual orientation.

With regard to genetic factors, a study by Hare reported that trans women have a longer androgen receptor gene than cis men, which is less effective at binding testosterone, potentially preventing complete masculinization of the brain (Prenatal androgen exposure or sensitivity, or lack thereof, is an often cited mechanism to explain observed brain-structure differences).[3] A study by Bentz found that trans men have a CYP17 allele distribution like cis men and unlike cis women.[4] A twin study published in the International Journal of Transgenderism found that 33% of identical twin pairs were both trans, compared to only 2.6% of non-identical twins who were raised in the same family at the same time, but were not genetically identical.[5]