Tag: coma
PET Scans Predict Coma Outcome
A new study shows that 42 really is the answer to life, the universe, and everything. OK, not really, but it does show that 42% of healthy brain activity is the minimum threshold for consciousness. Disorders of consciousness, also referred to as coma when severe enough, can be a difficult situation to assess sufficiently to make reliable predictions about outcome. Part of...
Detecting Consciousness in the Vegetative
People in a vegetative state, usually as a result of brain trauma or anoxia (lack of oxygen) by definition have no signs of conscious awareness or activity. The definition, therefore, is based largely on the absence of evidence for consciousness. Of course, arguments based upon the absence of evidence are only as compelling as the degree to which evidence has been properly...
Man in Coma 23 Years – Is He Really Conscious?
Belgian citizen Rob Houben has been noncommunicative for 23 years. Has he suddenly gained the ability to communicate?