This question already has an answer here:
I would be very grateful if someone could direct me towards any literature on the following thoughts:
I have always wondered if my brain were split into 2 and separated while being kept alive and then rebuilt into 2 fully functioning brains, which one would I (my current self/consciousness) occupy.
Of course this is all debatable but I came to a fairly satisfactory answer (for myself) that there exists some sort of module within the brain that emulates my conscious self and whichever half of the brain got that module would be the one my current consciousness would inhabit.
But it then seems that consciousness is simply an illusion from the brain. That the question if (in the Ship of Theseus type of thinking) your whole body where to be decomposed and rebuilt would the new consciousness still be the same as the old is simply answered by the fact there was no real consciousness in the first place.
I however find this very hard to wrap my head around as it seems like a logical answer, yet every waking moment I feel as if I have a very real consciousness.
Could anyone direct me to a book that discusses this in more detail?