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BETTER BREAST SCANS Researchers at the University of Chicago and elsewhere are developing computer programs that can point out questionable areas on mammograms that might easily be missed. Other scientists are looking at the possibility that a different type of scan, magnetic resonance imaging, can help spot tumors in areas of the breast that are difficult for a mammogram to penetrate...
...same nanobots that will scan our brains will also be able to expand our thinking and our experiences. Nanobot technology will provide fully immersive, totally convincing virtual reality. By taking up positions in close physical proximity to every interneuronal connection coming from all our sense organs (e.g., eyes, ears, skin), the nanobots can suppress all the inputs coming from the real senses and replace them with the signals that would be appropriate for a virtual environment. By 2030, "going to a website" will mean entering a virtual-reality environment. The implant will generate the streams of sensory input that would...
...cannot reverse-engineer the human brain and copy its design. We can peer inside someone's brain today with noninvasive scanners, which are increasing their resolution with each new generation. To capture the salient neural details of the human brain, the most practical approach would be to scan it from inside. By 2030, "nanobot" technology should be available for brain scanning. Nanobots are robots that are the size of human blood cells or even smaller (see "Will Tiny Robots Build Diamonds One Atom at a Time?"). Billions of them could travel through every brain capillary and scan neural details...
When the course of therapy was complete, a brain scan indicated renewed muscle activity in the paralyzed limb - a finding that seems to vindicate scientists' previous theory that the brain can, in fact, be actively rewired. "For years there's been hope that you can retrain the brain," says TIME medical correspondent Christine Gorman. As our understanding of the brain becomes more sophisticated, Gorman explains, we get further from the erroneous idea that the brain is static, or fixed. "Now we know that tasks like learning a language or playing a new instrument change the brain," Gorman says. And although...
That is why most insurers and employers refuse to pay for whole-body CT scans for healthy people. So the "worried well" wind up paying $500 to $600 out of pocket for their imaging tests. Call me cynical, but in this era of managed care, I can't help noticing how that income stream also serves to pay for a lot of very expensive equipment. I'm more concerned, though, that some folks might consider a "clean" CT scan an excuse to forget about doing the things that we know improve health, like quitting smoking, shedding excess pounds or exercising...