Returning people from minimally consciousness
BBC reports on a new technique for returning people from a state of minimum consciousness:
Treatment of a 38-year-old man with a severe brain injury enabled him to use words and gestures, chew and swallow and drink from a cup, say US doctors.
Before the stimulation, done through electrodes implanted in his brain, he could only make slight eye or finger movements, the team report in Nature.
[snip]
Within 48 hours of the first stimulation, the patient was able to keep his eyes open, turn his head, and utter words.
After several treatments he is now able to perform complex tasks such as brushing his hair, although with difficulty due to severe immobility caused by his condition.
And can chew and swallows his food where before he needed a feeding tube.
Further tests on 12 patients have gained FDA approval. The researchers say if these results are replicated, it could change the standard of care for such patients, most of whom have to be cared for in long-term nursing facilities.
RTWT™
This raises the question of what would have happened if Terri Shiavo had been granted this opportunity for recovery.
That question in my mind exposes the Achilles’ Heel of the practice of euthanasia (especially when it is practiced with a good measure of political theatre): Unless you can definitively state that a person can never be returned to a near normal state of consciousness, it is better to take the more cautious approach and assume that in the future an as yet undiscovered technology might return that person to a (near) normal life.
In the end, our understanding of consciousness and what is required physiologically for that state to occur is very very limited. The human brain is known to be highly redundant, and has a greater plasticity (ability to “rewire itself") than previously given credit for. (See this post by Rob for a clinical example.)
