In case you might be harboring any doubts

From today's New York Times (emphasis mine):

Dr. Ronald Cranford, a neurologist and medical ethicist at the University of Minnesota Medical School who has examined Ms. Schiavo on behalf of the Florida courts and declared her to be irredeemably brain-damaged, said ... there was no doubt that Ms. Schiavo was in a persistent vegetative state. "Her CAT scan shows massive shrinkage of the brain," he said. "Her EEG is flat - flat. There's no electrical activity coming from her brain."

Here's how an EEG works.

Any questions?