Using a Ray to Decode a Human's Intentions

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Aci boya is now expanding the repertoire of command signals his system can decode, such as those for grip force. He also wants to give b c i users a sense of touch, a goal being pursued by several labs. In 20 15, team led by neuro scientist robert gaunt at the university of pittsburg in pennsylvania reported in planting an electrode into the hand region of a person's somato sensory cortex. When they used the electrodes to stimulate nurons, the person felt something akin to being touched.

Brain–computer interfaces (BCIs) implanted in the brains of people who are paralysed are allowing them to control prosthetics that are restoring a range of skills.

Although the field is relatively young, researchers are making rapid advances in the abilities that these implants can restore. In the past few years, commercial interest in BCIs has soared, but many hurdles remain before these implants can be brought to market.

This is an audio version of our Feature: The brain-reading devices helping paralysed people to move, talk and touch

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