Scientists at the California Institute of Technology (Calteh) in the United States, unveiled a new technology that allows people to control artificial limbs such as arms, only with the power of the mind. The ‘magic’ takes place via a chip that is implanted in the brain. The study aims to help people with paralysis and promises to control these members with greater accuracy and speed than current techniques offer.
Beverages capsule? Understand how the technology works
This is not the first time that sensors are implanted in the brain to help with movement. The problem of other attempts is that the whole process was going slowly, which made the most unnatural action. The Caltech technology makes this more natural action. The downside, however, is that how it was still not very developed, the movements do not correspond exactly to what the patient imagines.
Like other orders of the brain, the movement originates in a electrical impulse originated in neurons, which is then sent to the corresponding spine members and executed. When a person suffers damage in this area of the body, the signal loses a route to the affected area, but still issued. The sensors can intercept this signal and send it to a computer that decodes and transforms into commands to the robotic arm.
The patient who is testing the technology, Erik Sorto, suffers from paralysis 10 years. After receiving the implants, he learned to control his arm on the first day, extending it and shaking hands with others. The next step was learning to drink alone, moving a glass to the brim. But for the proper functioning of the prosthesis is necessary to practice several times. To learn how to play “rock, paper, scissors”, for example, Sorto had to practice more than 6700 times to get the movement the way.
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The problem of the prostheses is that there is a limit to what they can do until there is a way to receive feedback to improve the result. Returning to the example of tea, our body know when you are playing the object through the sense of touch, moving to the next phase of the movement automatically. With the artificial limb all this information must be captured with their eyes. The next phase of research, the researchers said, is to create new prostheses that have a mechanism to send signals to the brain mimicking the sensation of touch. . Until then await the next chapters of this story
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Via Telegraph, Engadget and Caltech
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