Brains of trans women are more similar to that of cis women, including structural differences like the volumes of grey and white matter etc...
Here's one link :- https://www.ese-hormones.org/media/ei0psrhz/transgender-brains-are-more-like-their-desired-gender-from-an-early-age.pdf
In short:
Brains of transgenders individuals were more similar to the gender they identify as than their birth sex, including structural differences like the volumes of grey and white matter and stuff like that
Here's another link :-https://www.scientificamerican.com/article/is-there-something-unique-about-the-transgender-brain/
The summary is that pre HRT trans people have some brain areas that are identical to that of cisgender counterparts. So while it can't be said 100% to assume that the parts more similar to assigned sex are related to body function and not consciousness, especially because it's been said that a lot of people say that after HRT brain scans show an even higher brain similarity to their gender identity
