New Test Can Detect “Hidden Consciousness” in Coma Patients

There are some things that life never prepares you for — like the dreaded phone call that a loved one is in a coma, and you’re responsible for making their end-of-life decisions if they don’t wake up.  These decisions are further complicated by the fact that there’s no true test for consciousness. And, unfortunately, it’s difficult for doctors to predict who will wake up and who won’t.