With the brain all gone like that, it ought to be nothing but windy at the top! As far as I know, it's the brain that controls shit and keep track of all that feels anything, something and everything, so how's all that gasping and stuff possible? Must be bodily reflexes, right? Oh, well... It must at least be over by now, don't you think?
The lower part of the brain controls involuntary actions such as breathing. Let's go hunting, Hunter!