because this controls your breathing, the most primal part of the brain. this is the most standard procedure to have a bone flap like that. they will be watching for that, any infection, bleeding. on top of that we have her in a deep sedative state. every hour they are reducing sedation, bringing her to a conscious state and asking her to do very simple things, squeeze my fingers, open your eyes, wiggle your toes. and if those things remain stable, they will consider her neurologically stable. and that tells them that she's holder her own. the goal is to get that breathing tube out, get her off the ventilator. i think the next 24 hours is going to be the big turning point for all of this. >> neurologically stable and apparently able to understand simple commands and do what they are asking her to do. how long might it be before they get a real sense of whether there will be any long-term neurological damage or whether she'll have a full recovery. >> not for a long time.