(Our insane government blocks Google and the available baidu search engine is very crappy)
Context:
New Test for Consciousness in 'Comatose' Patients
ScienceDaily (Nov. 9, 2011) — The Coma Science Group (
CRCyclotron, University of Liège /Liège University Hospital), led by Dr Steven Laureys, has developed, along with its partners in London, Ontario, (Canada) and Cambridge (England), a portable test which will permit a simpler and less expensive diagnosis of 'vegetative' patients who still have consciousness, despite the fact that they do not have the means to express it.
More:
http://www.sciencedaily.com/releases/2011/11/111109193646.htm