Mind uploading is the process by which an
entity can have an exact copy of mind put into a
digital state and still function as a sentient being.
Aside from the debate over the realism of the
technology required to perform this transfer of consciousness, there is a
debate over the question of “are you still the same person you were before the upload?”
Arguments for say:
Your mind goes to make up you as a person and as such, a copy should contain the same memories, the same way of thinking and the same emotions that were present in your mind before and up to the point of upload.
Arguments against say:
That after the upload your state of mind will change from that of what it was, due to the change in the factors that affect how you behave and how you think.
So, effectively, you are becoming a different person.