Word: graying
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...good plan. When his doctors rescanned his head, there was barely any brain left. The cerebral machine that talked and wondered, winked and sang, the machine that remembered jokes and birthdays and where the big fish hid on hot days, was nearly gone, replaced by lumps of haphazardly growing gray stuff. Gone with that machine seemed David as well. No expression, no response to anything we did to him. As far as I could tell, he was just not there...
...wasn't David's brain that woke him up to say goodbye that Friday. His brain had already been destroyed. Tumor metastases don't simply occupy space and press on things, leaving a whole brain. The metastases actually replace tissue. Where that gray stuff grows, the brain is just not there...
...back inside a brain-scanning machine. She's one of the first participants in a research project designed by Lisa Aziz-Zadeh, a neuroscientist at U.S.C.'s Brain and Creativity Institute, to test an intriguing question at the heart of a new field of brain research: Do areas of gray matter respond to the emotional contours of speech produced by others in the same way they do when we ourselves are speaking...
When the scientists compared the TMS data on the two groups--those who actually tickled the ivories and those who only imagined doing so--they glimpsed a revolutionary idea about the brain: the ability of mere thought to alter the physical structure and function of our gray matter. For what the TMS revealed was that the region of motor cortex that controls the piano-playing fingers also expanded in the brains of volunteers who imagined playing the music--just as it had in those who actually played...
With influential backers like former Princeton President William G. Bowen and former Harvard Corporation member Hanna H. Gray, the personable chemist may be asked to pull off the task again...