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.
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 man, Gert-Jan, who suffered a spinal cord injury in a bike accident 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,” Gert-Jan 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 Gert-Jan 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”.
Gert-Jan 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.
Pakistan has launched attacks on “multiple targets” across India, according to the media wing of Pakistan’s military.
Pakistan said in a statement that retaliatory attacks are underway in response to what it called “continuous provocation” by India, which fired missiles at three air bases inside Pakistan.
“Multiple targets in this operation are being engaged all across India,” the statement from Pakistan Armed Forces (PAF) said.
Pakistan’s military said it used medium-range Fateh missiles to strike more than 25 military sites, including airbases and weapons depots in the Indian states of Gujarat, Punjab and Rajasthan, as well as locations in India-administered Kashmir.
Pakistan’s military posted footage on X showing missiles being fired from what appeared to be a mobile launcher.
Pic: MilitaryPakISPR
The AP news agency also said loud explosions have been heard in India-administered Kashmir, in the disputed region’s two big cities of Srinagar and Jammu, and the garrison town of Udhampur.
Meanwhile, an Indian military source told Reuters that India has launched air operations in Pakistan, although no further details were given.
The operations mark the latest escalation in a conflict between the two nuclear-armed rivals, triggered by a deadly attack last month in India-administered Kashmir.
Most of the 26 civilians killed were Hindu Indian tourists. India blames Pakistan for backing the assault, an accusation Islamabad rejects.
Pakistan’s Prime Minister Shehbaz Sharif has called a meeting of the National Command Authority, the body which takes security decisions, including those related to the country’s nuclear arsenal.
State-run Pakistan television said three air bases were struck by India on Friday, although Pakistan insisted most of the missiles had been intercepted.
Despite the military offensive, PAF also posted a message on X in what appeared to represent an opportunity to de-escalate the situation.
“Now that a response has been given we hope the neighbour [India] will move to dialogue and diplomacy like Civilized Nations,” it said.
In recent days, both countries have launched a series of missile and drone strikes, although the scale and impact have been consistently questioned by each other.
On Wednesday, India conducted airstrikes on several sites in Pakistani territory. Pakistan said it shot down five Indian fighter jets.
On Thursday, India claimed to have repelled drone and missile attacks at military targets in more than a dozen cities and towns, including Jammu in India-administered Kashmir. Meanwhile, India claimed it struck Pakistan’s air defence systems and radars close to the city of Lahore.
A damaged house in Jammu, in Indian-administered Kashmir, after a Pakistani drone attack. Pic: AP
The Indian army said on Friday that Pakistan fired about 300 to 400 drones, targeting military installations along the western borders – a claim strongly denied by Pakistan.
The G7 group of advanced economies, which includes Canada, France, Germany, Italy, Japan, the US and Britain, urged maximum restraint from both India and Pakistan.
“We call for immediate de-escalation and encourage both countries to engage in direct dialogue towards a peaceful outcome,” a statement issued on Friday said.
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World
European leaders to meet in Ukraine for ‘coalition of the willing’ talks – and issue call to Russia
Sir Keir Starmer will join other European leaders in Kyiv on Saturday for talks on the “coalition of the willing”.
The prime minister is attending the event alongside French President Emmanuel Macron, recently-elected German Chancellor Friedrich Merz and Polish Prime Minister Donald Tusk.
It will be the first time the leaders of the four countries will travel to Ukraine at the same time – on board a train to Kyiv – with their meeting hosted by President Volodymyr Zelenskyy.
Follow latest updates on the Ukraine war
Sir Keir Starmer, Emmanuel Macron and Friedrich Merz travelling in the saloon car of a special train to Kiev. Pic: Reuters
Military officers from around 30 countries have been involved in drawing up plans for the coalition, which would provide a peacekeeping force in the event of a ceasefire being agreed between Russia and Ukraine.
Ahead of the meeting on Saturday, Sir Keir, Mr Macron, Mr Tusk and Mr Merz released a joint statement voicing support for Ukraine and calling on Russia to agree to a 30-day ceasefire.
Sir Keir and Volodymyr Zelenskyy during a meeting in March. Pic: AP
“We reiterate our backing for President Trump’s calls for a peace deal and call on Russia to stop obstructing efforts to secure an enduring peace,” they said.
“Alongside the US, we call on Russia to agree a full and unconditional 30-day ceasefire to create the space for talks on a just and lasting peace.”
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Putin’s Victory Day parade explained
The leaders said they were “ready to support peace talks as soon as possible”.
But they warned that they would continue to “ratchet up pressure on Russia’s war machine” until Moscow agrees to a lasting ceasefire.
“We are clear the bloodshed must end, Russia must stop its illegal invasion, and Ukraine must be able to prosper as a safe, secure and sovereign nation within its internationally recognised borders for generations to come,” their statement added.
“We will continue to increase our support for Ukraine.”
Read more:
Russia’s VE Day parade felt like celebration of war
Michael Clarke Q&A on Ukraine war
Ukraine and Russia accuse each other of breaching ceasefire
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The European leaders are set to visit the Maidan, a central square in Ukraine’s capital where flags represent those who died in the war.
They are also expected to host a virtual meeting for other leaders in the “coalition of the willing” to update them on progress towards a peacekeeping force.
This force “would help regenerate Ukraine’s armed forces after any peace deal and strengthen confidence in any future peace”, according to Number 10.
World
Ten explosions near international airport in India-administered part of Kashmir, officials say
Ten explosions have been heard near Srinagar International Airport in India-administered parts of Kashmir, officials have told Reuters news agency.
The blasts followed blackouts caused by multiple projectiles, which were seen in the sky above the city of Jammu earlier on Friday.
Explosions were also heard in the Sikh holy city of Amritsar, in the neighbouring Punjab state, according to Reuters.
An Indian military official told the agency that “drones have been sighted” and “they are being engaged”.
It comes as tensions between India and Pakistan across the line of control around the region of Kashmir have boiled over this week, leading to fears of a wider conflict.
On Wednesday morning, India carried out missile strikes in Pakistan and Pakistan-administered parts of the disputed region.
The retaliation came weeks after 26 people, mainly Indian tourists, were shot dead by gunmen in an India-administered part of Kashmir last month.
The government in India said it hit nine “terrorist infrastructure” sites, while Pakistan said it was not involved in the April attack and the sites were not militant bases.
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Explained: India-Pakistan conflict
Around 48 people have been killed since Wednesday, according to casualty estimates on both sides – which have not been independently verified.
India also suspended its top cricket tournament, the Indian Premier League, as a result of rising tensions, while the Pakistan Super League moved the remainder of its season to the United Arab Emirates.
Meanwhile, White House press secretary Karoline Leavitt said at a conference on Friday that the US is in constant contact with both India and Pakistan.
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