Dozens of microchips scattered over the cortical surface might allow researchers to listen in on thousands of neurons at the same time.
A team at Brown University has developed a system that uses dozens of silicon microchips to record and transmit brain activity to a computer. Dubbed “neurograins,” the chips—each about the size of a grain of salt—are designed to be sprinkled across the brain’s surface or throughout its tissue to collect neural signals from more areas than currently possible with other brain implants.
“Each grain has enough micro-electronics stuffed into it so that, when embedded in neural tissue, it can listen to neuronal activity on the one hand, and then
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