>>40120926Dementia/Alzheimer's is more or less brain damage through a lot of the brain not just the memory.
>https://en.wikipedia.org/wiki/Alzheimer%27s_disease>Alzheimer's disease (AD) is a neurodegenerative disease and the cause of 60–70% of cases of dementia.[2][15] The most common early symptom is difficulty in remembering recent events.[1] As the disease advances, symptoms can include problems with language, disorientation (including easily getting lost), mood swings, loss of motivation, self-neglect, and behavioral issuesTheir brain doesn't work well enough to be able to talk well (or at all depending on phase). All sorts of things are being messed up so whatever has to do with identity or body mapping would be the least of their issues.
Think of Terri Schiavo, brain totally gone. Just goop.
Now another interesting idea there, it seems unlikely to me that Schiavo's gender identity would be flipped to male. However it was certainly switched to nothing. This differs from the OP and the theoretical detrans case where they want to detrans due to the damage. This would be more like they become neutral as the part of the brain that controls GD was destroyed rather than flipped. That said a person with a destroyed gender identity brain region/bodymap AND memory loss except for events from say their (pre trans) childhood would be very confused why they are suddenly a girl.