I dunno, I think I would be fundamentally the same person. Certainly much of my current self would be lost with my memory, but I think my instincts, my likes and dislikes would not. From what I understand, much of our brain's 'wiring' is shaped through experience. But once it's 'set', it doesn't really need memories to persist.
If I were to lose my memories, I would wager I would find myself liking the same things I used to, but without being able to explain why I like them, or why I'm more or less adept at certain tasks. I would never quite be the same person, but I don't think I'd be radically different either.
If I were to lose my memories, I would wager I would find myself liking the same things I used to, but without being able to explain why I like them, or why I'm more or less adept at certain tasks. I would never quite be the same person, but I don't think I'd be radically different either.