BE VERY QUIET WHEN YOU'RE TALKING ABOUT KILLING THEM....:

Patient ‘locked in’ by brain injury answers question using thoughts alone (Mark Henderson, 2/03/10, Times of London)

A man who was presumed to be in a vegetative state for five years has answered questions using his thoughts alone in a ground-breaking experiment that promises to allow some patients who are “locked in” by brain injuries to communicate.

The 29-year-old Belgian was able to reply to simple “yes”/”no” questions such as “Is your father’s name Alexander?” by changing his brain activity. Scientists then read his answers by studying functional magnetic resonance imaging (fMRI) scans.