There is a person sitting at your computer right now, reading these words. Earlier today, there was (probably) a person that got out of your bed, brushed his or her teeth, and ate breakfast. What makes these two people both “you”? Or, more generally, what has to be the case for a person in the past to be identical to a person in the future? This is a summary of some of the central issues involved in attempting to answer this question. Start at Section 2: “Understanding the Persistence Question,” and read through Section 5: “Fission.”
This is an article about DID and self-hood, written Nicholas Humphrey, a theoretical psychologist, and Daniel C. Dennett, a contemporary (and relatively famous) philosopher of mind. Start at the bottom of page 6 (“Many people who find it convenient…”) and read through the middle of page 12 (“we shall be able to come closer to an answer…”).