the split brain stuff fascinates me a lot. one of my problems is how it deals with consciousness. if we define consciousness as something inherently present in the brain then splitting the two halves would fuck it up completely. you wouldn't be able to have a consistent consciousness with two halves of the brain unable to communicate. you would maybe have two consciousnesses, one dictating the self awareness of the left brain and the other doing the same to the right brain.
if after a split brain operations patients experience the same level of consciousness the the conclusions must be either that consciousness is at a higher level than the physical brain or that it manifests only in one of the two pars of the brain and somehow "wins" over the opposite site offering the same self awareness to the whole self