I have no doubt your brains are involved. In many cases, both the big one and the little one.
What I do doubt, however, is whether the mechanism of the brain's involvement in the case of CDs has anything to do with what's going on in TS brains. I might be wrong. For the moment though, the research that has shown evidence of biological support for transgender identities has focused (AFAICT) exclusively on transexuals.
