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Scientists 'Inject' Information Into Monkeys' Brains

• https://www.nytimes.com, Carl Zimmer

Your eyes relay signals to the visual centers in the back of your brain. After those signals get processed, they travel along a pathway to another region, the premotor cortex, where the brain plans movements.

Now, imagine that you had a device implanted in your brain that could shortcut the pathway and "inject" information straight into your premotor cortex.

That may sound like an outtake from "The Matrix." But now two neuroscientists at the University of Rochester say they have managed to introduce information directly into the premotor cortex of monkeys. The researchers published the results of the experiment on Thursday in the journal Neuron.

Although the research is preliminary, carried out in just two monkeys, the researchers speculated that further research might lead to brain implants for people with strokes.

"You could potentially bypass the damaged areas and deliver stimulation to the premotor cortex," said Kevin A. Mazurek, a co-author of the study. "That could be a way to bridge parts of the brain that can no longer communicate."

In order to study the premotor cortex, Dr. Mazurek and his co-author, Dr. Marc H. Schieber, trained two rhesus monkeys to play a game.

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