Saturday , July 31 2021

How does the implant work, which translates thought into words



brainCopyright on the image
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Image caption

The implant captures electrical electrical signals that drive the lips, tongue, larynx and jaw.

This is a promising discovery that, according to scientists, could restore the capacity of speech to people who lost it because of a disease.

A team at the University of California at San Francisco has developed a brain implant that can read thoughts and translate them into words.

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Their results, published in the magazine nature, they are "Convincing" and hope.

"We can expect people with speech problems to regain their ability to freely express their thoughts and connect with the world around them," said in a commentary published with the study.

However, "it should be kept in mind that it is at a very early stage and is not yet close to clinical applications," says Professor Sophie Scott, University College London.

How it works?

The operation of the implant is divided into two stages.

First, an electrode is implanted in the brain capture of electrical signals who deal with the lips, tongue, larynx and jaw.

Calculation is then used to simulate how the movements of the mouth and throat would make different sounds.

This leads to a synthesized speech that comes from a "virtual vocal tract",

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"For the first time this study shows that we can generate full sentences based on the individual's brain activity," says Professor Edward Chang, one of the researchers.

"This is an initial stimulus test that with the technology we already have, we need to be able to build a device that is clinically viable in patients with speech loss."

Who can help?

Many diseases can lead to loss of speech, including:

  • motor neurone disease
  • brain injuries
  • throat cancer
  • some blows
  • neurodegenerative diseases such as Parkinson & apos; s and multiple sclerosis.

The team says it can work with people with some of these diseases.

However, the technology is based on the parts of the brain that control the functioning of the lips, tongue, larynx and jaw. so not all patients who have suffereda something like cerebrovascular accident advantage.

"This is not a solution for anyone who can not communicate," Professor Chang said.

Researchers say there will be a more remote opportunity to help people who have never spoken, including some children with cerebral palsy.

Copyright on the image
Getty Images

Image caption

Researchers used computers to simulate how the movements of the mouth and throat would make different sounds.

Q.I would hate itRussian unscrupulous read yoursthinks private?

It is very difficult at the moment.

"We tried to see if it was actually possible to only decode thoughts," Professor Chang said.

"And it turns out that this is a very, very difficult problem," he admits.

"This is one of the reasons why we really focus on what people really are trying to say."

Some scientists, however, argue that there is an ethical debate about brain technology that reads the mind.

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