When are we not ourselves?

[GrandizerII]

The construction of self isn't really about the body anyway, it's a continual and ongoing process that is maintained through a stream of memories and perceived stability of the mind along with societal reinforcements of the supposedly unchanging self.

So if a scientist could place your memories in a different body it would be you, right?

For me, and considering only this scenario as you describe it, yes, I think I would. But then again, I wouldn't be sure. It's a tricky one.

But keep in mind I don't really subscribe to any one theory of the self. IMO, it's really an interaction of certain elements, rather than one element, that determines the self (and societal norms and expectations are included).