A Little More Humility About PVS, If You Please

Whilst we are contemplating what it means that a woman diagnosed as PVS is actually cognitive, as determined by MRI tests, let us not forget this very interesting development from a few months ago. Remember, when Ambien apparently aroused three PVS patients in S. Africa, permitting them to interact so long as the drug’s effect lasted?

I have no idea how all of this will turn out. But this much I do know: What we don’t know about cognitive disabilities should make doctors and bioethicists a little more humble and definitely more reluctant to deprive these helpless people of food and water.