Does that hurt? Objective way to measure pain being developed

Does that hurt? Objective way to measure pain being developed:

'via Blog this'

Researchers from the Stanford University School of Medicine have taken a first step toward developing a diagnostic tool that could eliminate a major hurdle in pain medicine -- the dependency on self-reporting to measure the presence or absence of pain. The new tool would use patterns of brain activity to give an objective physiologic assessment of whether someone is in pain.