Sunday, 17 September 2023 04:16

A paralyzed woman couldn't speak for more than 20 years. With AI, now she can — just by thinking

Rate this item
(0 votes)

Nearly two decades ago, then-30-year-old Ann Johnson had a brain stem stroke, and though she survived, she was left paralyzed and unable to speak with a condition known as locked-in syndrome.

Johnson slowly regained the ability to breathe independently, move her neck, and wink, but after 18 years, her brain hasn't recovered its ability to move the muscles required for her to speak more than a few words.

With the help of a new AI-driven brain implant, she has become the first patient to successfully use a groundbreaking neurotechnology that synthesizes speech and facial expressions from brain signals, the researchers behind the project claim.

In a study published in Nature late last month, researchers at the University of California San Francisco and the University of California Berkeley detailed their findings after implanting a thin layer of 253 electrodes on Johnson's brain and customizing the technology to read her brain signals.

The neurotechnology uses artificial intelligence to decode the woman's brain signals while she tries to speak. Though her muscles don't move, her brain sends a signal perceptible to the electrodes, which decode what she is trying to say, and then synthesizes speech and facial expressions using a computer-generated avatar.

Johnson, who doesn't have cognitive or sensory impairment after the stroke, could previously communicate at roughly 14 words per minute using her old typing method involving a device that responds to small head movements, per a University of California San Francisco news article about the breakthrough. With her new implant, her digital avatar speaks almost 80.

"Our goal is to restore a full, embodied way of communicating, which is the most natural way for us to talk with others," Edward Chang, chair of neurological surgery at the University of California San Francisco, said in the UCSF publication about the research. "These advancements bring us much closer to making this a real solution for patients."

Chang did not immediately respond to Insider's request for comment.

While the UCSF and UCB researchers claim Johnson's case is a scientific first for allowing people with locked-in syndrome to communicate using neurotechnology, two researchers from Austria's Wyss Center for Bio and Neuroengineering claimed last year they had achieved a similar feat.

Though their results working with a 34-year-old man to regain his ability to speak after being paralyzed were promising, the Austrian researchers previously had a paper on the subject retracted, and "several cases of scientific misconduct" were identified in a 2019 investigation conducted by the German Research Foundation (DFG), which funded some of the work.

Despite neurotechnology facing controversy and ethics concerns, developments in the public and private sectors have been identified by groups like the United Nations as among the fastest-growing fields with the possibility to improve human lives.

As for Johnson, the benefits of being involved in the UCSF project are far more expansive than just offering her the opportunity to speak again after all these years.

"When I was at the rehab hospital, the speech therapist didn't know what to do with me," Johnson said, per the UCSF publication. "Being a part of this study has given me a sense of purpose, I feel like I am contributing to society. It feels like I have a job again. It's amazing I have lived this long; this study has allowed me to really live while I'm still alive!"


Business Insider

June 12, 2024

Guinness’ core investor to exit Nigeria after 75 years amid economic challenges

After operating in Nigeria since 1950, Guinness’ core investor has announced its departure from the…
June 05, 2024

Many politicians go to court after elections because they know they can be declared winners…

Former President Goodluck Jonathan on Tuesday said that many politicians would avoid going to court…
June 09, 2024

Bar soap or body wash: Which is best for your skin and the planet?

What’s the most sustainable way to wash your hands or lather up in the shower?…
June 08, 2024

World’s first ever AI Beauty pageant names 10 finalists

The Fanvue Miss AI pageant, the world’s first beauty pageant for AI-generated female models, judges…
June 11, 2024

Gunmen kill 50 in raid on Katsina village, residents say

At least 50 people were killed and an unspecified number kidnapped, including women and children,…
June 12, 2024

Here’s the latest as Israel-Hamas war enters Day 250

Hamas responds to Gaza cease-fire plan seeking some changes. US says it's 'evaluating' the reply…
June 10, 2024

Three reasons why it’s good news that robots are getting smarter - The Economist

The robots are coming! In science fiction that is usually an ominous warning. In the…
June 11, 2024

Gernort Rohr’s sweet revenge as Nigeria lose World Cup qualifier to Benin coached by ex-Super…

Nigeria’s World Cup qualifying hopes took a heavy blow with a 2-1 defeat by Benin…

NEWSSCROLL TEAM: 'Sina Kawonise: Publisher/Editor-in-Chief; Prof Wale Are Olaitan: Editorial Consultant; Femi Kawonise: Head, Production & Administration; Afolabi Ajibola: IT Manager;
Contact Us: [email protected] Tel/WhatsApp: +234 811 395 4049

Copyright © 2015 - 2024 NewsScroll. All rights reserved.