Paralysed man walks again thanks to ‘digital bridge’ that wirelessly reconnects brain and spinal cord
A paralysed man has been able to walk again after communication was re-established between his brain and spinal cord using a wireless “digital bridge”.
The so-called brain computer interface is made up of two electronic implants, one each in the brain and spinal cord.
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The former is placed above the region of the brain responsible for controlling leg movements, and can decode the electrical signals generated when we think about walking.
Similarly, the other implant is positioned over the part of the spinal cord that controls the legs.
Working together, scientists say the groundbreaking technology “transforms thought into action” – repairing the broken connection between the brain and the region of the spinal cord that controls movement.
The first patient was a 40-year-old Dutchman, engineer Gert-Jan Oskam, who suffered a spinal cord injury in a bike accident while working in China in 2011.
It had left him paralysed, but he noticed improvements within days of surgeons calibrating the implants.
Rediscovering simple pleasures
“The most surprising thing I think happened after two days,” Mr Oskam said.
“Within five to minutes, I could control my hips.”
Since then, after “a long journey” of training, the patient has been able to walk, climb stairs and navigate ramps.
He has also rediscovered the “simple pleasure” of standing with friends at a bar.
The implants remained effective after a year, including when Mr Oskam was unsupervised at home.
He was treated by neuroscientists and neurosurgeons from Switzerland’s Lausanne University Hospital and the University of Lausanne, and the Swiss Federal Institute of Technology Lausanne.
The implants themselves were developed by the French Atomic Energy Commission.
Gert-Jan underwent a lengthy period of training with the implants. Pic: EPFL/CHUV/UNIL and CEA/CHUGA/UGA
How does the technology work?
Guillaume Charvet, head of the project at the commission, said the implants use “adaptive artificial intelligence” to decode movement intentions from the brain in real time.
Once AI identifies the relevant signals, they are converted into sequences of electrical stimulation for the spinal cord, which activate the leg muscles and prompt the desired movement.
Remarkably, the patient experienced improvements in his sensory perceptions and motor skills that were maintained even when the digital bridge was switched off – allowing him to walk with crutches.
Professor Gregoire Courtine said this suggests the digital bridge not only repaired the man’s spinal cord, but also “promotes the growth of new nerve connections”.
Mr Oskam is the only patient who the digital bridge has been tested on, but it is hoped the technology could be used to restore arm and hand functions in future.
It could also be applied following other causes of paralysis, such as a stroke.
The findings have been detailed in the journal Nature.
They rose to their feet in ecstatic surprise, shouting “heydar, heydar” – a Shia victory chant.
This was the first public appearance of their supreme leader since Israel began attacking their country.
He emerged during evening prayers in his private compound. He said nothing but looked stern and resolute as he waved to the crowd.
He has spent the last weeks sequestered in a bunker, it is assumed, for his safety following numerous death threats from Israel and the US.
His re-emergence suggests a return to normality and a sense of defiance that we have witnessed here on the streets of Tehran too.
Earlier, we had filmed as men in black marched through the streets of the capital to the sound of mournful chants and the slow beat of drums, whipping their backs with metal flails.
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Defiance on streets of Tehran
This weekend they mark the Shia festival of Ashura as they have for 14 centuries. But this year has poignant significance for Iranians far more than most.
The devout remember the betrayal and death of Imam Hussein as if it happened yesterday. We filmed men and women weeping as they worshipped at the Imamzadeh Saleh Shrine in northern Tehran.
The armies of the Caliph Yazid killed the grandson of the Prophet Muhammad in the seventh-century Battle of Karbala.
Shiite Muslims mark the anniversary every year and reflect on the virtue it celebrates, of resistance against oppression and injustice.
But more so than ever in the wake of Israel and America’s attacks on their country.
The story is one of prevailing over adversity and deception. A sense of betrayal is keenly felt here among people and officials.
Listen to The World with Richard Engel and Yalda Hakim every Wednesday
Many Iranians believe they were lured into pursuing diplomacy as part of a ruse by the US.
Iran believed it was making diplomatic progress in talks with America it hoped could lead to a deal. Then Israel launched its attacks and, instead of condemning them, the US joined in.
Death to Israel chants resounded outside the mosque in skies which were filled for 12 days with the sounds of Israeli jets. There is a renewed sense of defiance here.
One man told us: “The lesson to be learned from Hussein is not to give in to oppression even if it is the most powerful force in the world.”
A woman was dismissive about the US president. “I don’t think about Trump, nobody likes him. He always wants to attack too many countries.”
Pictures on billboards nearby draw a line between Imam Hussein’s story and current events. The seventh-century imam on horseback alongside images of modern missiles and drones from the present day.
Other huge signs remember the dead. Iran says almost 1,000 people were killed in the strikes, many of them women and children.
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Officially Iran is projecting defiance but not closing the door to diplomacy.
Government spokeswoman Dr Fatemeh Mohajerani told Sky News that Israel should not even think about attacking again.
“We are very strong in defence and as state officials have announced, this time Israel will receive an even stronger response compared to previous times,” she said.
“We hope that Israel will not make such a mistake.”
But there is also a hint of conciliation: Senior Iranian officials have told Sky News that back-channel efforts are under way to explore new talks with the US.
Israel had hoped its attacks could topple the Iranian leadership. That proved unfounded, the government is in control here.
For many Iranians, it seems quite the opposite happened – the 12-day war has brought them closer together.
To the sound of mournful chants and the slow beat of drums, they march, whipping their backs with metal flails.
It is an ancient ceremony going back almost 14 centuries – the Shia commemoration of Ashura.
But this year in particular has poignant significance for Iranians.
The devout remember the betrayal and death of the Imam Hussein as if it happened yesterday.
Iranians gather ahead of Ashura
We filmed men and women weep as they worshipped at the Imamzadeh Saleh Shrine in northern Tehran.
The grandson of the Prophet Muhammad was killed by the armies of the Caliph Yazid in the seventh century Battle of Karbala.
Shia Muslims mark the anniversary every year and reflect on the virtue it celebrates – of resistance against oppression and injustice. But more so than ever this year, in the wake of Israel and America’s attacks on their country.
The story is one of prevailing over adversity and deception. A sense of betrayal is keenly felt here by people and officials.
Men and women weeped as they worshipped at the Imamzadeh Saleh Shrine
Many Iranians believe they were lured into pursuing diplomacy as part of a ruse by the US.
Iran believed it was making diplomatic progress in talks with America, which it hoped could lead to a deal. Then Israel launched its attacks and, instead of condemning them, the US joined in.
“Death to Israel” chants resounded outside the mosque in skies that for 12 days were filled with the sounds of Israeli jets.
There is a renewed sense of defiance here.
One man told us: “The lesson to be learned from Hussein is not to give in to oppression, even if it is the most powerful force in the world.”
‘I don’t think about Trump. Nobody likes him,’ one woman tells Sky News
A woman was dismissive about the US president.
“I don’t think about Trump. Nobody likes him. He always wants to attack too many countries.”
Pictures on billboards nearby link Imam Hussein’s story and current events. They show the seventh century imam on horseback alongside images of modern missiles and drones from the present day.
Other huge signs remember the dead. Iran says almost 1,000 people were killed in the strikes, many of them women and children.
Officially Iran is projecting defiance, but not closing the door to diplomacy.
Government spokeswoman Dr Fatemeh Mohajerani told Sky News that Israel should not even think about attacking again.
“We are very strong in defence, and as state officials have announced, this time Israel will receive an even stronger response compared to previous times. We hope that Israel will not make such a mistake.”
Dr Fatemeh Mohajerani said it would be a mistake for Israel to attack again
But there is also a hint of conciliation. Senior Iranian officials have told Sky News back-channel efforts are under way to explore new talks with the US.
Israel had hoped its attacks could topple the Iranian leadership. Those hopes proved unfounded. The government is in control here.
For many Iranians it seems quite the opposite happened – the 12-day war has brought them closer together.
World
Two security workers injured after grenades thrown at aid site, Gaza Humanitarian Foundation says
Two American security workers in Gaza were injured after grenades were thrown during food distribution in Khan Younis, the Gaza Humanitarian Foundation (GHF) has said.
In a statement, the US and Israeli-backed aid group said a targeted terrorist attack was carried out at one of its sites in southern Gaza on Saturday morning.
The two Americans injured “are receiving medical treatment and are in stable condition,” it said, adding that the delivery of aid was “otherwise successful” and that “no local aid workers or civilians were harmed”.
GHF didn’t say exactly when the incident happened but claimed Hamas was behind the attack, adding: “GHF has repeatedly warned of credible threats from Hamas, including explicit plans to target American personnel, Palestinian aid workers, and the civilians who rely on our sites for food.
“Today’s attack tragically affirms those warnings.”
Later, the aid group posted a picture on social media, which it said showed “fragments of a grenade packed with ball bearings” that was used in the attack.
Asked by Sky’s US partner network, NBC News, whether the two injured individuals were responsible for handing out aid or were responsible for providing security, GHF said they were “American security workers” and “two American veterans.”
The aid group did not provide specific evidence that Hamas was behind the attack.
The US and Israeli-backed group has been primarily responsible for aid distribution since Israel lifted its 11-week blockade of the Gaza Strip in May.
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Hamas gives ‘positive’ response to ceasefire proposal
Outcry as Israeli strike hits school
94 killed in Israeli strikes in Gaza, health staff say
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It comes after Sky News analysis showed GHF aid distributions are associated with a significant increase in deaths in Gaza.
According to Gaza’s health ministry, 600 Palestinians have been killed while seeking aid from GHF sites as of 3 July, which charities and the UN have branded “death traps”.
Meanwhile, the Associated Press has reported that Israeli-backed American contractors guarding GHF aid centres in Gaza are using live ammunition and stun grenades.
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Contractors allege colleagues ‘fired on Palestinians’
GHF has vehemently denied the accusations, adding that it investigated AP’s allegations and found them to be “categorically false”.
Israel’s military added that it fires only warning shots and is investigating reports of civilian harm.
It denies deliberately shooting at any innocent civilians and says it’s examining how to reduce “friction with the population” in the areas surrounding the distribution centres.
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