The brain is made of pliant soft tissue that flexes and moves within the cranium as we go about our days. Studying the organ and being able to interface with it on the level of individual neurons is exceedingly difficult when the electrodes used are rigid and so can’t maintain a solid contact with the neurons they’re interfacing with. As the brain shifts, traditional electrodes lose the signal they’re homing in on, and end up only useful when covering a large number of neurons at once. Now scientists from Arizona State University and Sandia National Labs, a subsidiary of Lockheed Martin, are working on neural interfaces that can communicate with individual neurons while the brain moves around naturally.
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