Anyways I found
this from the NCBI which may help explain what the hell is going on with these bra-sniffers.
A lot of these studies found that MtF really don't have male brains, but for the most part do not really have "female brains", either, as autogynophiles love to parrot-- and are instead stuck in a sort of androgynous limbo. A lot of
"sex-atypical" results but not many "female-pattern" results. FTM get a lot of "male-pattern" results (not male-brained, but closer to male-brained than MtF are to female-brained) which plays into the theory that these are two very different,
non-opposite disorders.