An anonymous reader writes "Researchers reporting online on July 26 in Current Biology have for the first time shown that they can control the behavior of monkeys by using pulses of blue light to very specifically activate particular brain cells (abstract). The findings represent a key advance for optogenetics, a state-of-the-art method for making causal connections between brain activity and behavior. Based on the discovery, the researchers say that similar light-based mind control could likely also be made to work in humans for therapeutic ends."
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