@stukus:
I have a double response to your idea with experiences in the womb.
I would respond that from the begining to second trimester, the fetus is still not human, it is not viable, ie, cannot survive or experience outside the body. Whatever might be said about the form "experiencing" in the womb, it is still not HUMAN experience, as it is both not yet of human form and not in a human setting (I'm sure that sounds vague and you'll have an objection, but once you raise it, maybe I can make my point better in response, if that reason does not suffice.)
@nola2172:
Yes, the vegitative state person WOULD be a person, a human being, because they are, essentially a broken mind, but still a mind. The fact that they are in a vegitative state is sad, but that they had prior experience means that they HAVE a personality and a prior store of empirical data, they are simply in a broken body/mind.
If, theoretically, they could get a NEW body, as in the "mind transfer" thought experiment, then they could, logically, be able to show that trapped-in persona again, and function so as to again be empirical and gather more data and more "personality," through experience.