4/18/2013

LEDs the size of neurons embedded in devices thinner than a human hair have shown their potential, when injected into mouse brains, to trigger individual brain cells genetically engineered to be light-sensitive. Researchers from Washington University in St. Louis and the University of Illinois at Urbana-Champaign used the device to reward mice with a release of dopamine for certain behaviors, indicating a broad potential for neuroscience research or more practical applications.

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