In the latest case study, neuroscientists describe how they implanted electrodes in the brain of a 38-year-old man who had been in a minimally conscious state for more than six years following a serious assault. By electrically stimulating a brain region called the central thalamus, they were able to help him name objects on request, make precise hand gestures, and chew food without the aid of a feeding tube (see page 600). The thalamus is involved in motor control, arousal and in relaying sensory signals — from the visual systems, for example — to the cerebral cortex, the part of the brain involved in consciousness.
Implant boosts activity in injured brain - Deep-brain stimulation offers hope for minimally...
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NEW YORK - A brain-damaged man who could communicate only with slight eye or thumb movements for six years can speak again, after stimulating electrodes were placed in his brain, researchers report.
The 38-year-old also regained the ability to chew and swallow, which allows him to be spoon-fed, rather than relying on nourishment through a tube in his belly.
Brain-injured man speaks after 6 years
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