This should increase the conversation more than a little over how fast we pull the plug on some people....
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In patients who have survived severe brain damage, judging the level of actual awareness has proved a difficult process. And the prognosis can sometimes mean the difference between life and death.
New research suggests that some vegetative patients are capable of simple learning—a sign of consciousness in many who had failed other traditional cognitive tests. The findings are presented in a paper today in Nature Neuroscience (Scientific American is part of the Nature Publishing Group).
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What was more, current designation of either vegetative or minimally conscious did not determine how well patients learned. Some of those who were minimally conscious didn't learn as well as some who were classified as vegetative and vice versa. "I think there's some consensus that there is a [need for] revision in the way these patients are classified," Sigman says.
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In patients who have survived severe brain damage, judging the level of actual awareness has proved a difficult process. And the prognosis can sometimes mean the difference between life and death.
New research suggests that some vegetative patients are capable of simple learning—a sign of consciousness in many who had failed other traditional cognitive tests. The findings are presented in a paper today in Nature Neuroscience (Scientific American is part of the Nature Publishing Group).
>
What was more, current designation of either vegetative or minimally conscious did not determine how well patients learned. Some of those who were minimally conscious didn't learn as well as some who were classified as vegetative and vice versa. "I think there's some consensus that there is a [need for] revision in the way these patients are classified," Sigman says.
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