Friday, June 24, 2011

Since these early experiments, Moran's group has found ways to space the electrodes on a grid to optimize the signals from the neurons for more precise movement. Together with Justin Williams at the University of Wisconsin--Madison, Moran built a small electrode array to fit over the brain's sensorimotor cortex, a region concerned both with movement and the perception of outside stimuli. Jasper, one of three monkeys in Moran's lab, is now using the new array to play video games and reach for and grasp virtual objects on a computer screen, all without moving a muscle. This summer, the researchers will get their first look at how the device performs in human patients who need it. more »

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