Study: Brain scans reveal hidden consciousness in patients

NEW YORK (AP) — A standard brain scanning technique is showing promise for helping doctors distinguish between patients in a vegetative state and those with hidden signs of consciousness.
A study released Thursday is the latest to investigate using technology to help meet the challenge of making that distinction, which now is generally based on a doctor’s bedside exam.
Patients in a vegetative state have open eyes and show periods of sleep and wakefulness, but they are unaware of the