Jenn,
Your question was a little confusing, but I'm guessing you meant how does one's thinking change when you transition from male to female?
I have to strongly disagree with everyone else. I've always said that the mental changes I've experienced during transition dwarf the physical ones. That goes for both intensity and importance. In other words, the mental changes have been much more dramatic than the physical ones, and, in the long run, I think I will value the mental changes much more than the physical. In some ways, hormone replacement therapy (HRT) has changed the kind of person I am. Also, the process and pressures of transition changed who I am as a person, too. In a lot of ways, I always thought like a guy. Those thoughts have definitely changed.
I want to be very clear that I haven't experienced a change in core beliefs or morals.
HRT changed my sex drive, but it didn't change my sexual preference. I get turned on by different things now, and in different intensities. It sounds terribly stereotypical, but I'm much more romantic now.
The emotions I have now are much more intense. I'm not neccessarily more moody, but if I get angry at something that I would have gotten angry at before transition, I get much more angry. I was always known as a pretty happy-go-lucky person, who could occasionally get pissed at something. Now everybody knows, if Amy's in a bad mood, give her space, or she'll bite your head off.
I was never a big fan of the male population, but now I just can't stand them. I view men in a different light now, as I do women, too.
The way I think about myself has changed. That was probably one of the hardest to accomplish, & I'm still working on it.
There's more, but that's all I can think of right now. Also, it's hard to explain some of the changes... you just have to experience them. Hope this sheds some light,
Amy