I've been reading The Vintage Book of Amnesia, ed by Jonathan Lethem. It just a collection of short works about memory loss. I'm only 100 pages in and I've already been impressed with many of these works. Some are excerpts from longer works, such as Lawrence Shainberg's story of a neurosurgeon who is suffering from gradual brain damage. A few things I had already seen, such as "Funes: His Memory" by Borges (a classic) and an except from Percy's The Second Coming. The msot extraordinary story so far, one which only tangentially deals with memory loss, is Brian Fawcett's "Soul Walker" which posits the idea that our souls can only travel at walking speen and that if we move around too quickly we leave them behind.