I posted something regarding this topic at a rival forum. Fact one sounds intersting. It is a well known fact that neurons in brain have different sensitivty to the lack of oxygen. Even when I am doing experiment on rat brain slices, if I leave slices deprived of oxygen, some neurons stay alive (although most of them exhibit seizure like excititory activity). Fact 2 gives me the chills....it's a scary thought that you are able to process some sensory information posthumously. Most likely the "conscious" part after decapitation is the residual neuronal activity processed before death.