After a hit-and-run in 2006, Rob Summers lost the use of his hips, legs, feet, and toes. Five years later, Mr. Summers took a step with the help an electrical stimulator connected to his spine. A team of researchers in Louisville led by Susan Harkema (and in collaboration with UCLA and California Institute of Technology) have been working to create a way to mimic the signals the brain sends to the spine, commanding a certain action. Apparently, their work has been a great success, and in the words of Summers, ?It was unbelievable.? Katy Perry Vinessa Shaw Rebecca Romijn Nadine Velazquez Pink
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