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Editing brain activity with holography

April 30, 2018 by

The goal of brain implants is to read neuron activity and respond by activating neurons to, for example, move prosthetics or simulate lost perceptions. Researchers have developed a device to do that, projecting a holographic image into the top layer of the brain to activate dozens of neurons hundreds of times a second to simulate real patterns of activity. Equipped with new, fast on/off optogenetic switches, neurons are tricked into perceiving things not there.

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