Researchers from the UC San Francisco (UCSF) created a device that allowed through their thoughts to a paralyzed man to control the robot hand.
A study, funded by the National Institute of Health and published in a scientific journal Cell March 6. He says that the man – who had a stroke has been stroke years before and cannot speak or move – could hold, move and drop the objects just imagining that he does.
The study potentially has great consequences for people with paralysis, because it means that they could do simple but critical tasks, such as feeding yourself or drinking water, completely independent.
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According to an update on the University website, a new device is a type of brain interface (BCI). So far, such devices have only been working at once until a day or two without the need for external adjustment from the engineer.
However, the UCSF study device reportedly worked up to seven months without the need to adjust. This is because this specific device uses artificial intelligence (AI) to adjust the small changes in the brain that occur over time, leading to more refined gestures and less need for external control.
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And how does the new BCI work in practice?
In the university, the man had small sensors implanted to the brain surface. These sensors picked up brain activity when he imagined certain tasks, such as opening his hand or moving his fingers.
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Researchers say that, although brain activity related to this movement, it remained the same with time, their location inside the brain could be moved a little from day to day – and that is why AI, which can be automatically adapted to these smaller changes – proved key.
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“This learning mixing between people and AI is the next stage for these brain and computers interfaces,” said UCSF researcher Karunesh Ganguly, MD.
“I am convinced that we have learned now how to build a system and that we can do it,” Gangaly said.
Categories: Trends
Source: HIS Education