A man could control a robotic arm via a chip implanted in his brain.
Sorto was shot at 21 and dreamed of drinking beer alone (Credit: Reuters / Caltech)
Photo : BBC World / Copyright
The chip allowed Erik Sorto, California, drink a sip of a drink, without help, for the first time in ten years.
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The details, published in the journal Science, show how electrical signals complex of his brain could be interpreted commands to the arm.
Mind Control
Two small sensors were implanted in their brains to monitor activity of about one hundred neurons.
Previous attempts to robotics controlled by the brain had been concentrated in the motor cortex – the region responsible for individual action of muscles.
But the American team implanted the chip in the posterior parietal cortex – the part of the brain that takes care of the initial intention.
It’s the difference between deciding grab a mug and send the message to your hand moving toward her.
The team hopes that this approach is more intuitive.
“The first time I experienced the robotic arm, he managed to repeat the gesture of a student who reached out to greet him, as if shaking hands. For him, it was a thrill, “said one of the researchers, Richard Andersen at Caltech.
Man also has a vitamin with arm
Photo: AFP / BBC World
With training, it improved control to power up the glass causing it to his mouth and also control the cursor on a computer screen.
“I played with the guys I wanted to drink beer alone, to be able to do it at my own pace when you want to take a sip of my beer and not have to ask someone to me give, “Sorto said.
. “I really miss that independence I think if I was safe, I would like me to fix alone – to shave, brush my teeth That would be fantastic..”
Progress Research on
enjoy a healthy brain to overcome the deficiency of a damaged body are advancing rapidly, especially in the United States.
Cathy Hutchinson used a robotic arm to serve a first-time drink from a stroke 15 years ago.
Jan Scheuermann was able to hold and move various objects accurately, as with a normal arm.
But progress is still restricted to laboratories.
The procedure requires an implant with wires coming out of the brain, which can pose a risk of infection.
Scientists also want to further monitor cells to improve control.
Commenting on the survey, the researchers Andrew Pruszynski and Jorn Diedrichsen said: “The results represent another step toward making the brain to control a robotic limb a reality.”
“But despite the impressive steps taken over the past 15 years, these prostheses linked to neurons still have a significant way to go before therapeutic interventions practices.”
Officials with implanted chips interact with equipment
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