Tag Archives: quadriplegia

Neural (brain) implants and hype (long read)

There was a big splash a few weeks ago when it was announced that Neuralink’s (Elon Musk company) brain implant had been surgically inserted into its first human patient.

Getting approval

David Tuffley, senior lecturer in Applied Ethics & CyberSecurity at Griffith University (Australia), provides a good overview of the road Neuralink took to getting FDA (US Food and Drug Administration) approval for human clinical trials in his May 29, 2023 essay for The Conversation, Note: Links have been removed,

Since its founding in 2016, Elon Musk’s neurotechnology company Neuralink has had the ambitious mission to build a next-generation brain implant with at least 100 times more brain connections than devices currently approved by the US Food and Drug Administration (FDA).

The company has now reached a significant milestone, having received FDA approval to begin human trials. So what were the issues keeping the technology in the pre-clinical trial phase for as long as it was? And have these concerns been addressed?

Neuralink is making a Class III medical device known as a brain-computer interface (BCI). The device connects the brain to an external computer via a Bluetooth signal, enabling continuous communication back and forth.

The device itself is a coin-sized unit called a Link. It’s implanted within a small disk-shaped cutout in the skull using a precision surgical robot. The robot splices a thousand tiny threads from the Link to certain neurons in the brain. [emphasis mine] Each thread is about a quarter the diameter of a human hair.

The company says the device could enable precise control of prosthetic limbs, giving amputees natural motor skills. It could revolutionise treatment for conditions such as Parkinson’s disease, epilepsy and spinal cord injuries. It also shows some promise for potential treatment of obesity, autism, depression, schizophrenia and tinnitus.

Several other neurotechnology companies and researchers have already developed BCI technologies that have helped people with limited mobility regain movement and complete daily tasks.

In February 2021, Musk said Neuralink was working with the FDA to secure permission to start initial human trials later that year. But human trials didn’t commence in 2021.

Then, in March 2022, Neuralink made a further application to the FDA to establish its readiness to begin humans trials.

One year and three months later, on May 25 2023, Neuralink finally received FDA approval for its first human clinical trial. Given how hard Neuralink has pushed for permission to begin, we can assume it will begin very soon. [emphasis mine]

The approval has come less than six months after the US Office of the Inspector General launched an investigation into Neuralink over potential animal welfare violations. [emphasis mine]

In accessible language, Tuffley goes on to discuss the FDA’s specific technical issues with implants and how they were addressed in his May 29, 2023 essay.

More about how Neuralink’s implant works and some concerns

Canadian Broadcasting Corporation (CBC) journalist Andrew Chang offers an almost 13 minute video, “Neuralink brain chip’s first human patient. How does it work?” Chang is a little overenthused for my taste but he offers some good information about neural implants, along with informative graphics in his presentation.

So, Tuffley was right about Neuralink getting ready quickly for human clinical trials as you can guess from the title of Chang’s CBC video.

Jennifer Korn announced that recruitment had started in her September 20, 2023 article for CNN (Cable News Network), Note: Links have been removed,

Elon Musk’s controversial biotechnology startup Neuralink opened up recruitment for its first human clinical trial Tuesday, according to a company blog.

After receiving approval from an independent review board, Neuralink is set to begin offering brain implants to paralysis patients as part of the PRIME Study, the company said. PRIME, short for Precise Robotically Implanted Brain-Computer Interface, is being carried out to evaluate both the safety and functionality of the implant.

Trial patients will have a chip surgically placed in the part of the brain that controls the intention to move. The chip, installed by a robot, will then record and send brain signals to an app, with the initial goal being “to grant people the ability to control a computer cursor or keyboard using their thoughts alone,” the company wrote.

Those with quadriplegia [sometimes known as tetraplegia] due to cervical spinal cord injury or amyotrophic lateral sclerosis (ALS) may qualify for the six-year-long study – 18 months of at-home and clinic visits followed by follow-up visits over five years. Interested people can sign up in the patient registry on Neuralink’s website.

Musk has been working on Neuralink’s goal of using implants to connect the human brain to a computer for five years, but the company so far has only tested on animals. The company also faced scrutiny after a monkey died in project testing in 2022 as part of efforts to get the animal to play Pong, one of the first video games.

I mentioned three Reuters investigative journalists who were reporting on Neuralink’s animal abuse allegations (emphasized in Tuffley’s essay) in a July 7, 2023 posting, “Global dialogue on the ethics of neurotechnology on July 13, 2023 led by UNESCO.” Later that year, Neuralink was cleared by the US Department of Agriculture (see September 24,, 2023 article by Mahnoor Jehangir for BNN Breaking).

Plus, Neuralink was being investigated over more allegations according to a February 9, 2023 article by Rachel Levy for Reuters, this time regarding hazardous pathogens,

The U.S. Department of Transportation said on Thursday it is investigating Elon Musk’s brain-implant company Neuralink over the potentially illegal movement of hazardous pathogens.

A Department of Transportation spokesperson told Reuters about the probe after the Physicians Committee of Responsible Medicine (PCRM), an animal-welfare advocacy group,wrote to Secretary of Transportation Pete Buttigieg, opens new tab earlier on Thursday to alert it of records it obtained on the matter.

PCRM said it obtained emails and other documents that suggest unsafe packaging and movement of implants removed from the brains of monkeys. These implants may have carried infectious diseases in violation of federal law, PCRM said.

There’s an update about the hazardous materials in the next section. Spoiler alert, the company got fined.

Neuralink’s first human implant

A January 30, 2024 article (Associated Press with files from Reuters) on the Canadian Broadcasting Corporation’s (CBC) online news webspace heralded the latest about Neurlink’s human clinical trials,

The first human patient received an implant from Elon Musk’s computer-brain interface company Neuralink over the weekend, the billionaire says.

In a post Monday [January 29, 2024] on X, the platform formerly known as Twitter, Musk said that the patient received the implant the day prior and was “recovering well.” He added that “initial results show promising neuron spike detection.”

Spikes are activity by neurons, which the National Institutes of Health describe as cells that use electrical and chemical signals to send information around the brain and to the body.

The billionaire, who owns X and co-founded Neuralink, did not provide additional details about the patient.

When Neuralink announced in September [2023] that it would begin recruiting people, the company said it was searching for individuals with quadriplegia due to cervical spinal cord injury or amyotrophic lateral sclerosis, commonly known as ALS or Lou Gehrig’s disease.

Neuralink reposted Musk’s Monday [January 29, 2024] post on X, but did not publish any additional statements acknowledging the human implant. The company did not immediately respond to requests for comment from The Associated Press or Reuters on Tuesday [January 30, 2024].

In a separate Monday [January 29, 2024] post on X, Musk said that the first Neuralink product is called “Telepathy” — which, he said, will enable users to control their phones or computers “just by thinking.” He said initial users would be those who have lost use of their limbs.

The startup’s PRIME Study is a trial for its wireless brain-computer interface to evaluate the safety of the implant and surgical robot.

Now for the hazardous materials, January 30, 2024 article, Note: A link has been removed,

Earlier this month [January 2024], a Reuters investigation found that Neuralink was fined for violating U.S. Department of Transportation (DOT) rules regarding the movement of hazardous materials. During inspections of the company’s facilities in Texas and California in February 2023, DOT investigators found the company had failed to register itself as a transporter of hazardous material.

They also found improper packaging of hazardous waste, including the flammable liquid Xylene. Xylene can cause headaches, dizziness, confusion, loss of muscle co-ordination and even death, according to the U.S. Centers for Disease Control and Prevention.

The records do not say why Neuralink would need to transport hazardous materials or whether any harm resulted from the violations.

Skeptical thoughts about Elon Musk and Neuralink

Earlier this month (February 2024), the British Broadcasting Corporation (BBC) published an article by health reporters, Jim Reed and Joe McFadden, that highlights the history of brain implants, the possibilities, and notes some of Elon Musk’s more outrageous claims for Neuralink’s brain implants,

Elon Musk is no stranger to bold claims – from his plans to colonise Mars to his dreams of building transport links underneath our biggest cities. This week the world’s richest man said his Neuralink division had successfully implanted its first wireless brain chip into a human.

Is he right when he says this technology could – in the long term – save the human race itself?

Sticking electrodes into brain tissue is really nothing new.

In the 1960s and 70s electrical stimulation was used to trigger or suppress aggressive behaviour in cats. By the early 2000s monkeys were being trained to move a cursor around a computer screen using just their thoughts.

“It’s nothing novel, but implantable technology takes a long time to mature, and reach a stage where companies have all the pieces of the puzzle, and can really start to put them together,” says Anne Vanhoestenberghe, professor of active implantable medical devices, at King’s College London.

Neuralink is one of a growing number of companies and university departments attempting to refine and ultimately commercialise this technology. The focus, at least to start with, is on paralysis and the treatment of complex neurological conditions.

Reed and McFadden’s February 2024 BBC article describes a few of the other brain implant efforts, Note: Links have been removed,

One of its [Neuralink’s] main rivals, a start-up called Synchron backed by funding from investment firms controlled by Bill Gates and Jeff Bezos, has already implanted its stent-like device into 10 patients.

Back in December 2021, Philip O’Keefe, a 62-year old Australian who lives with a form of motor neurone disease, composed the first tweet using just his thoughts to control a cursor.

And researchers at Lausanne University in Switzerland have shown it is possible for a paralysed man to walk again by implanting multiple devices to bypass damage caused by a cycling accident.

In a research paper published this year, they demonstrated a signal could be beamed down from a device in his brain to a second device implanted at the base of his spine, which could then trigger his limbs to move.

Some people living with spinal injuries are sceptical about the sudden interest in this new kind of technology.

“These breakthroughs get announced time and time again and don’t seem to be getting any further along,” says Glyn Hayes, who was paralysed in a motorbike accident in 2017, and now runs public affairs for the Spinal Injuries Association.

If I could have anything back, it wouldn’t be the ability to walk. It would be putting more money into a way of removing nerve pain, for example, or ways to improve bowel, bladder and sexual function.” [emphasis mine]

Musk, however, is focused on something far more grand for Neuralink implants, from Reed and McFadden’s February 2024 BBC article, Note: A link has been removed,

But for Elon Musk, “solving” brain and spinal injuries is just the first step for Neuralink.

The longer-term goal is “human/AI symbiosis” [emphasis mine], something he describes as “species-level important”.

Musk himself has already talked about a future where his device could allow people to communicate with a phone or computer “faster than a speed typist or auctioneer”.

In the past, he has even said saving and replaying memories may be possible, although he recognised “this is sounding increasingly like a Black Mirror episode.”

One of the experts quoted in Reed and McFadden’s February 2024 BBC article asks a pointed question,

… “At the moment, I’m struggling to see an application that a consumer would benefit from, where they would take the risk of invasive surgery,” says Prof Vanhoestenberghe.

“You’ve got to ask yourself, would you risk brain surgery just to be able to order a pizza on your phone?”

Rae Hodge’s February 11, 2024 article about Elon Musk and his hyped up Neuralink implant for Salon is worth reading in its entirety but for those who don’t have the time or need a little persuading, here are a few excerpts, Note 1: This is a warning; Hodge provides more detail about the animal cruelty allegations; Note 2: Links have been removed,

Elon Musk’s controversial brain-computer interface (BCI) tech, Neuralink, has supposedly been implanted in its first recipient — and as much as I want to see progress for treatment of paralysis and neurodegenerative disease, I’m not celebrating. I bet the neuroscientists he reportedly drove out of the company aren’t either, especially not after seeing the gruesome torture of test monkeys and apparent cover-up that paved the way for this moment. 

All of which is an ethics horror show on its own. But the timing of Musk’s overhyped implant announcement gives it an additional insulting subtext. Football players are currently in a battle for their lives against concussion-based brain diseases that plague autopsy reports of former NFL players. And Musk’s boast of false hope came just two weeks before living players take the field in the biggest and most brutal game of the year. [2024 Super Bowl LVIII]

ESPN’s Kevin Seifert reports neuro-damage is up this year as “players suffered a total of 52 concussions from the start of training camp to the beginning of the regular season. The combined total of 213 preseason and regular season concussions was 14% higher than 2021 but within range of the three-year average from 2018 to 2020 (203).”

I’m a big fan of body-tech: pacemakers, 3D-printed hips and prosthetic limbs that allow you to wear your wedding ring again after 17 years. Same for brain chips. But BCI is the slow-moving front of body-tech development for good reason. The brain is too understudied. Consequences of the wrong move are dire. Overpromising marketable results on profit-driven timelines — on the backs of such a small community of researchers in a relatively new field — would be either idiotic or fiendish. 

Brown University’s research in the sector goes back to the 1990s. Since the emergence of a floodgate-opening 2002 study and the first implant in 2004 by med-tech company BrainGate, more promising results have inspired broader investment into careful research. But BrainGate’s clinical trials started back in 2009, and as noted by Business Insider’s Hilary Brueck, are expected to continue until 2038 — with only 15 participants who have devices installed. 

Anne Vanhoestenberghe is a professor of active implantable medical devices at King’s College London. In a recent release, she cautioned against the kind of hype peddled by Musk.

“Whilst there are a few other companies already using their devices in humans and the neuroscience community have made remarkable achievements with those devices, the potential benefits are still significantly limited by technology,” she said. “Developing and validating core technology for long term use in humans takes time and we need more investments to ensure we do the work that will underpin the next generation of BCIs.” 

Neuralink is a metal coin in your head that connects to something as flimsy as an app. And we’ve seen how Elon treats those. We’ve also seen corporate goons steal a veteran’s prosthetic legs — and companies turn brain surgeons and dentists into repo-men by having them yank anti-epilepsy chips out of people’s skulls, and dentures out of their mouths. 

“I think we have a chance with Neuralink to restore full-body functionality to someone who has a spinal cord injury,” Musk said at a 2023 tech summit, adding that the chip could possibly “make up for whatever lost capacity somebody has.”

Maybe BCI can. But only in the careful hands of scientists who don’t have Musk squawking “go faster!” over their shoulders. His greedy frustration with the speed of BCI science is telling, as is the animal cruelty it reportedly prompted.

There have been other examples of Musk’s grandiosity. Notably, David Lee expressed skepticism about hyperloop in his August 13, 2013 article for BBC news online

Is Elon Musk’s Hyperloop just a pipe dream?

Much like the pun in the headline, the bright idea of transporting people using some kind of vacuum-like tube is neither new nor imaginative.

There was Robert Goddard, considered the “father of modern rocket propulsion”, who claimed in 1909 that his vacuum system could suck passengers from Boston to New York at 1,200mph.

And then there were Soviet plans for an amphibious monorail  – mooted in 1934  – in which two long pods would start their journey attached to a metal track before flying off the end and slipping into the water like a two-fingered Kit Kat dropped into some tea.

So ever since inventor and entrepreneur Elon Musk hit the world’s media with his plans for the Hyperloop, a healthy dose of scepticism has been in the air.

“This is by no means a new idea,” says Rod Muttram, formerly of Bombardier Transportation and Railtrack.

“It has been previously suggested as a possible transatlantic transport system. The only novel feature I see is the proposal to put the tubes above existing roads.”

Here’s the latest I’ve found on hyperloop, from the Hyperloop Wikipedia entry,

As of 2024, some companies continued to pursue technology development under the hyperloop moniker, however, one of the biggest, well funded players, Hyperloop One, declared bankruptcy and ceased operations in 2023.[15]

Musk is impatient and impulsive as noted in a September 12, 2023 posting by Mike Masnick on Techdirt, Note: A link has been removed,

The Batshit Crazy Story Of The Day Elon Musk Decided To Personally Rip Servers Out Of A Sacramento Data Center

Back on Christmas Eve [December 24, 2022] of last year there were some reports that Elon Musk was in the process of shutting down Twitter’s Sacramento data center. In that article, a number of ex-Twitter employees were quoted about how much work it would be to do that cleanly, noting that there’s a ton of stuff hardcoded in Twitter code referring to that data center (hold that thought).

That same day, Elon tweeted out that he had “disconnected one of the more sensitive server racks.”

Masnick follows with a story of reckless behaviour from someone who should have known better.

Ethics of implants—where to look for more information

While Musk doesn’t use the term when he describes a “human/AI symbiosis” (presumably by way of a neural implant), he’s talking about a cyborg. Here’s a 2018 paper, which looks at some of the implications,

Do you want to be a cyborg? The moderating effect of ethics on neural implant acceptance by Eva Reinares-Lara, Cristina Olarte-Pascual, and Jorge Pelegrín-Borondo. Computers in Human Behavior Volume 85, August 2018, Pages 43-53 DOI: https://doi.org/10.1016/j.chb.2018.03.032

This paper is open access.

Getting back to Neuralink, I have two blog posts that discuss the company and the ethics of brain implants from way back in 2021.

First, there’s Jazzy Benes’ March 1, 2021 posting on the Santa Clara University’s Markkula Center for Applied Ethics blog. It stands out as it includes a discussion of the disabled community’s issues, Note: Links have been removed,

In the heart of Silicon Valley we are constantly enticed by the newest technological advances. With the big influencers Grimes [a Canadian musician and the mother of three children with Elon Musk] and Lil Uzi Vert publicly announcing their willingness to become experimental subjects for Elon Musk’s Neuralink brain implantation device, we are left wondering if future technology will actually give us “the knowledge of the Gods.” Is it part of the natural order for humans to become omniscient beings? Who will have access to the devices? What other ethical considerations must be discussed before releasing such technology to the public?

A significant issue that arises from developing technologies for the disabled community is the assumption that disabled persons desire the abilities of what some abled individuals may define as “normal.” Individuals with disabilities may object to technologies intended to make them fit an able-bodied norm. “Normal” is relative to each individual, and it could be potentially harmful to use a deficit view of disability, which means judging a disability as a deficiency. However, this is not to say that all disabled individuals will reject a technology that may enhance their abilities. Instead, I believe it is a consideration that must be recognized when developing technologies for the disabled community, and it can only be addressed through communication with disabled persons. As a result, I believe this is a conversation that must be had with the community for whom the technology is developed–disabled persons.

With technologies that aim to address disabilities, we walk a fine line between therapeutics and enhancement. Though not the first neural implant medical device, the Link may have been the first BCI system openly discussed for its potential transhumanism uses, such as “enhanced cognitive abilities, memory storage and retrieval, gaming, telepathy, and even symbiosis with machines.” …

Benes also discusses transhumanism, privacy issues, and consent issues. It’s a thoughtful reading experience.

Second is a July 9, 2021 posting by anonymous on the University of California at Berkeley School of Information blog which provides more insight into privacy and other issues associated with data collection (and introduced me to the concept of decisional interference),

As the development of microchips furthers and advances in neuroscience occur, the possibility for seamless brain-machine interfaces, where a device decodes inputs from the user’s brain to perform functions, becomes more of a reality. These various forms of these technologies already exist. However, technological advances have made implantable and portable devices possible. Imagine a future where humans don’t need to talk to each other, but rather can transmit their thoughts directly to another person. This idea is the eventual goal of Elon Musk, the founder of Neuralink. Currently, Neuralink is one of the main companies involved in the advancement of this type of technology. Analysis of the Neuralink’s technology and their overall mission statement provide an interesting insight into the future of this type of human-computer interface and the potential privacy and ethical concerns with this technology.

As this technology further develops, several privacy and ethical concerns come into question. To begin, using Solove’s Taxonomy as a privacy framework, many areas of potential harm are revealed. In the realm of information collection, there is much risk. Brain-computer interfaces, depending on where they are implanted, could have access to people’s most private thoughts and emotions. This information would need to be transmitted to another device for processing. The collection of this information by companies such as advertisers would represent a major breach of privacy. Additionally, there is risk to the user from information processing. These devices must work concurrently with other devices and often wirelessly. Given the widespread importance of cloud computing in much of today’s technology, offloading information from these devices to the cloud would be likely. Having the data stored in a database puts the user at the risk of secondary use if proper privacy policies are not implemented. The trove of information stored within the information collected from the brain is vast. These datasets could be combined with existing databases such as browsing history on Google to provide third parties with unimaginable context on individuals. Lastly, there is risk for information dissemination, more specifically, exposure. The information collected and processed by these devices would need to be stored digitally. Keeping such private information, even if anonymized, would be a huge potential for harm, as the contents of the information may in itself be re-identifiable to a specific individual. Lastly there is risk for invasions such as decisional interference. Brain-machine interfaces would not only be able to read information in the brain but also write information. This would allow the device to make potential emotional changes in its users, which be a major example of decisional interference. …

For the most recent Neuralink and brain implant ethics piece, there’s this February 14, 2024 essay on The Conversation, which, unusually, for this publication was solicited by the editors, Note: Links have been removed,

In January 2024, Musk announced that Neuralink implanted its first chip in a human subject’s brain. The Conversation reached out to two scholars at the University of Washington School of Medicine – Nancy Jecker, a bioethicst, and Andrew Ko, a neurosurgeon who implants brain chip devices – for their thoughts on the ethics of this new horizon in neuroscience.

Information about the implant, however, is scarce, aside from a brochure aimed at recruiting trial subjects. Neuralink did not register at ClinicalTrials.gov, as is customary, and required by some academic journals. [all emphases mine]

Some scientists are troubled by this lack of transparency. Sharing information about clinical trials is important because it helps other investigators learn about areas related to their research and can improve patient care. Academic journals can also be biased toward positive results, preventing researchers from learning from unsuccessful experiments.

Fellows at the Hastings Center, a bioethics think tank, have warned that Musk’s brand of “science by press release, while increasingly common, is not science. [emphases mine]” They advise against relying on someone with a huge financial stake in a research outcome to function as the sole source of information.

When scientific research is funded by government agencies or philanthropic groups, its aim is to promote the public good. Neuralink, on the other hand, embodies a private equity model [emphasis mine], which is becoming more common in science. Firms pooling funds from private investors to back science breakthroughs may strive to do good, but they also strive to maximize profits, which can conflict with patients’ best interests.

In 2022, the U.S. Department of Agriculture investigated animal cruelty at Neuralink, according to a Reuters report, after employees accused the company of rushing tests and botching procedures on test animals in a race for results. The agency’s inspection found no breaches, according to a letter from the USDA secretary to lawmakers, which Reuters reviewed. However, the secretary did note an “adverse surgical event” in 2019 that Neuralink had self-reported.

In a separate incident also reported by Reuters, the Department of Transportation fined Neuralink for violating rules about transporting hazardous materials, including a flammable liquid.

…the possibility that the device could be increasingly shown to be helpful for people with disabilities, but become unavailable due to loss of research funding. For patients whose access to a device is tied to a research study, the prospect of losing access after the study ends can be devastating. [emphasis mine] This raises thorny questions about whether it is ever ethical to provide early access to breakthrough medical interventions prior to their receiving full FDA approval.

Not registering a clinical trial would seem to suggest there won’t be much oversight. As for Musk’s “science by press release” activities, I hope those will be treated with more skepticism by mainstream media although that seems unlikely given the current situation with journalism (more about that in a future post).

As for the issues associated with private equity models for science research and the problem of losing access to devices after a clinical trial is ended, my April 5, 2022 posting, “Going blind when your neural implant company flirts with bankruptcy (long read)” offers some cautionary tales, in addition to being the most comprehensive piece I’ve published on ethics and brain implants.

My July 17, 2023 posting, “Unveiling the Neurotechnology Landscape: Scientific Advancements, Innovations and Major Trends—a UNESCO report” offers a brief overview of the international scene.

BrainGate demonstrates a high-bandwidth wireless brain-computer interface (BCI)

I wrote about some brain computer interface (BCI) work out of Stanford University (California, US), in a Sept. 17, 2020 posting (Turning brain-controlled wireless electronic prostheses into reality plus some ethical points), which may have contributed to what is now the first demonstration of a wireless brain-computer interface for people with tetraplegia (also known as quadriplegia).

From an April 1, 2021 news item on ScienceDaily,

In an important step toward a fully implantable intracortical brain-computer interface system, BrainGate researchers demonstrated human use of a wireless transmitter capable of delivering high-bandwidth neural signals.

Brain-computer interfaces (BCIs) are an emerging assistive technology, enabling people with paralysis to type on computer screens or manipulate robotic prostheses just by thinking about moving their own bodies. For years, investigational BCIs used in clinical trials have required cables to connect the sensing array in the brain to computers that decode the signals and use them to drive external devices.

Now, for the first time, BrainGate clinical trial participants with tetraplegia have demonstrated use of an intracortical wireless BCI with an external wireless transmitter. The system is capable of transmitting brain signals at single-neuron resolution and in full broadband fidelity without physically tethering the user to a decoding system. The traditional cables are replaced by a small transmitter about 2 inches in its largest dimension and weighing a little over 1.5 ounces. The unit sits on top of a user’s head and connects to an electrode array within the brain’s motor cortex using the same port used by wired systems.

For a study published in IEEE Transactions on Biomedical Engineering, two clinical trial participants with paralysis used the BrainGate system with a wireless transmitter to point, click and type on a standard tablet computer. The study showed that the wireless system transmitted signals with virtually the same fidelity as wired systems, and participants achieved similar point-and-click accuracy and typing speeds.

A March 31, 2021 Brown University news release (also on EurekAlert but published April 1, 2021), which originated the news item, provides more detail,

“We’ve demonstrated that this wireless system is functionally equivalent to the wired systems that have been the gold standard in BCI performance for years,” said John Simeral, an assistant professor of engineering (research) at Brown University, a member of the BrainGate research consortium and the study’s lead author. “The signals are recorded and transmitted with appropriately similar fidelity, which means we can use the same decoding algorithms we used with wired equipment. The only difference is that people no longer need to be physically tethered to our equipment, which opens up new possibilities in terms of how the system can be used.”

The researchers say the study represents an early but important step toward a major objective in BCI research: a fully implantable intracortical system that aids in restoring independence for people who have lost the ability to move. While wireless devices with lower bandwidth have been reported previously, this is the first device to transmit the full spectrum of signals recorded by an intracortical sensor. That high-broadband wireless signal enables clinical research and basic human neuroscience that is much more difficult to perform with wired BCIs.

The new study demonstrated some of those new possibilities. The trial participants — a 35-year-old man and a 63-year-old man, both paralyzed by spinal cord injuries — were able to use the system in their homes, as opposed to the lab setting where most BCI research takes place. Unencumbered by cables, the participants were able to use the BCI continuously for up to 24 hours, giving the researchers long-duration data including while participants slept.

“We want to understand how neural signals evolve over time,” said Leigh Hochberg, an engineering professor at Brown, a researcher at Brown’s Carney Institute for Brain Science and leader of the BrainGate clinical trial. “With this system, we’re able to look at brain activity, at home, over long periods in a way that was nearly impossible before. This will help us to design decoding algorithms that provide for the seamless, intuitive, reliable restoration of communication and mobility for people with paralysis.”

The device used in the study was first developed at Brown in the lab of Arto Nurmikko, a professor in Brown’s School of Engineering. Dubbed the Brown Wireless Device (BWD), it was designed to transmit high-fidelity signals while drawing minimal power. In the current study, two devices used together recorded neural signals at 48 megabits per second from 200 electrodes with a battery life of over 36 hours.

While the BWD has been used successfully for several years in basic neuroscience research, additional testing and regulatory permission were required prior to using the system in the BrainGate trial. Nurmikko says the step to human use marks a key moment in the development of BCI technology.

“I am privileged to be part of a team pushing the frontiers of brain-machine interfaces for human use,” Nurmikko said. “Importantly, the wireless technology described in our paper has helped us to gain crucial insight for the road ahead in pursuit of next generation of neurotechnologies, such as fully implanted high-density wireless electronic interfaces for the brain.”

The new study marks another significant advance by researchers with the BrainGate consortium, an interdisciplinary group of researchers from Brown, Stanford and Case Western Reserve universities, as well as the Providence Veterans Affairs Medical Center and Massachusetts General Hospital. In 2012, the team published landmark research in which clinical trial participants were able, for the first time, to operate multidimensional robotic prosthetics using a BCI. That work has been followed by a steady stream of refinements to the system, as well as new clinical breakthroughs that have enabled people to type on computers, use tablet apps and even move their own paralyzed limbs.

“The evolution of intracortical BCIs from requiring a wire cable to instead using a miniature wireless transmitter is a major step toward functional use of fully implanted, high-performance neural interfaces,” said study co-author Sharlene Flesher, who was a postdoctoral fellow at Stanford and is now a hardware engineer at Apple. “As the field heads toward reducing transmitted bandwidth while preserving the accuracy of assistive device control, this study may be one of few that captures the full breadth of cortical signals for extended periods of time, including during practical BCI use.”

The new wireless technology is already paying dividends in unexpected ways, the researchers say. Because participants are able to use the wireless device in their homes without a technician on hand to maintain the wired connection, the BrainGate team has been able to continue their work during the COVID-19 pandemic.

“In March 2020, it became clear that we would not be able to visit our research participants’ homes,” said Hochberg, who is also a critical care neurologist at Massachusetts General Hospital and director of the V.A. Rehabilitation Research and Development Center for Neurorestoration and Neurotechnology. “But by training caregivers how to establish the wireless connection, a trial participant was able to use the BCI without members of our team physically being there. So not only were we able to continue our research, this technology allowed us to continue with the full bandwidth and fidelity that we had before.”

Simeral noted that, “Multiple companies have wonderfully entered the BCI field, and some have already demonstrated human use of low-bandwidth wireless systems, including some that are fully implanted. In this report, we’re excited to have used a high-bandwidth wireless system that advances the scientific and clinical capabilities for future systems.”

Brown has a licensing agreement with Blackrock Microsystems to make the device available to neuroscience researchers around the world. The BrainGate team plans to continue to use the device in ongoing clinical trials.

Here’s a link to and a citation for the paper,

Home Use of a Percutaneous Wireless Intracortical Brain-Computer Interface by Individuals With Tetraplegia by John D Simeral, Thomas Hosman, Jad Saab, Sharlene N Flesher, Marco Vilela, Brian Franco, Jessica Kelemen, David M Brandman, John G Ciancibello, Paymon G Rezaii, Emad N. Eskandar, David M Rosler, Krishna V Shenoy, Jaimie M. Henderson, Arto V Nurmikko, Leigh R. Hochberg. IEEE Transactions on Biomedical Engineering, 2021; 1 DOI: 10.1109/TBME.2021.3069119 Date of Publication: 30 March 2021

This paper is open access.

If you don’t happen to be familiar with the IEEE, it’s the Institute of Electrical and Electronics Engineers. BrainGate can be found here, and Blackrock Microsystems can be found here.

The first story here to feature BrainGate was in a May 17, 2012 posting. (Unfortunately, the video featuring a participant picking up a cup of coffee is no longer embedded in the post.) There’s also an October 31, 2016 posting and an April 24, 2017 posting, both of which mention BrainGate. As for my Sept. 17, 2020 posting (Turning brain-controlled wireless electronic prostheses into reality plus some ethical points), you may want to look at those ethical points.

Robots in Vancouver and in Canada (two of two)

This is the second of a two-part posting about robots in Vancouver and Canada. The first part included a definition, a brief mention a robot ethics quandary, and sexbots. This part is all about the future. (Part one is here.)

Canadian Robotics Strategy

Meetings were held Sept. 28 – 29, 2017 in, surprisingly, Vancouver. (For those who don’t know, this is surprising because most of the robotics and AI research seems to be concentrated in eastern Canada. if you don’t believe me take a look at the speaker list for Day 2 or the ‘Canadian Stakeholder’ meeting day.) From the NSERC (Natural Sciences and Engineering Research Council) events page of the Canadian Robotics Network,

Join us as we gather robotics stakeholders from across the country to initiate the development of a national robotics strategy for Canada. Sponsored by the Natural Sciences and Engineering Research Council of Canada (NSERC), this two-day event coincides with the 2017 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS 2017) in order to leverage the experience of international experts as we explore Canada’s need for a national robotics strategy.

Where
Vancouver, BC, Canada

When
Thursday September 28 & Friday September 29, 2017 — Save the date!

Download the full agenda and speakers’ list here.

Objectives

The purpose of this two-day event is to gather members of the robotics ecosystem from across Canada to initiate the development of a national robotics strategy that builds on our strengths and capacities in robotics, and is uniquely tailored to address Canada’s economic needs and social values.

This event has been sponsored by the Natural Sciences and Engineering Research Council of Canada (NSERC) and is supported in kind by the 2017 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS 2017) as an official Workshop of the conference.  The first of two days coincides with IROS 2017 – one of the premiere robotics conferences globally – in order to leverage the experience of international robotics experts as we explore Canada’s need for a national robotics strategy here at home.

Who should attend

Representatives from industry, research, government, startups, investment, education, policy, law, and ethics who are passionate about building a robust and world-class ecosystem for robotics in Canada.

Program Overview

Download the full agenda and speakers’ list here.

DAY ONE: IROS Workshop 

“Best practices in designing effective roadmaps for robotics innovation”

Thursday September 28, 2017 | 8:30am – 5:00pm | Vancouver Convention Centre

Morning Program:“Developing robotics innovation policy and establishing key performance indicators that are relevant to your region” Leading international experts share their experience designing robotics strategies and policy frameworks in their regions and explore international best practices. Opening Remarks by Prof. Hong Zhang, IROS 2017 Conference Chair.

Afternoon Program: “Understanding the Canadian robotics ecosystem” Canadian stakeholders from research, industry, investment, ethics and law provide a collective overview of the Canadian robotics ecosystem. Opening Remarks by Ryan Gariepy, CTO of Clearpath Robotics.

Thursday Evening Program: Sponsored by Clearpath Robotics  Workshop participants gather at a nearby restaurant to network and socialize.

Learn more about the IROS Workshop.

DAY TWO: NSERC-Sponsored Canadian Robotics Stakeholder Meeting
“Towards a national robotics strategy for Canada”

Friday September 29, 2017 | 8:30am – 5:00pm | University of British Columbia (UBC)

On the second day of the program, robotics stakeholders from across the country gather at UBC for a full day brainstorming session to identify Canada’s unique strengths and opportunities relative to the global competition, and to align on a strategic vision for robotics in Canada.

Friday Evening Program: Sponsored by NSERC Meeting participants gather at a nearby restaurant for the event’s closing dinner reception.

Learn more about the Canadian Robotics Stakeholder Meeting.

I was glad to see in the agenda that some of the international speakers represented research efforts from outside the usual Europe/US axis.

I have been in touch with one of the organizers (also mentioned in part one with regard to robot ethics), Ajung Moon (her website is here), who says that there will be a white paper available on the Canadian Robotics Network website at some point in the future. I’ll keep looking for it and, in the meantime, I wonder what the 2018 Canadian federal budget will offer robotics.

Robots and popular culture

For anyone living in Canada or the US, Westworld (television series) is probably the most recent and well known ‘robot’ drama to premiere in the last year.As for movies, I think Ex Machina from 2014 probably qualifies in that category. Interestingly, both Westworld and Ex Machina seem quite concerned with sex with Westworld adding significant doses of violence as another  concern.

I am going to focus on another robot story, the 2012 movie, Robot & Frank, which features a care robot and an older man,

Frank (played by Frank Langella), a former jewel thief, teaches a robot the skills necessary to rob some neighbours of their valuables. The ethical issue broached in the film isn’t whether or not the robot should learn the skills and assist Frank in his thieving ways although that’s touched on when Frank keeps pointing out that planning his heist requires he live more healthily. No, the problem arises afterward when the neighbour accuses Frank of the robbery and Frank removes what he believes is all the evidence. He believes he’s going successfully evade arrest until the robot notes that Frank will have to erase its memory in order to remove all of the evidence. The film ends without the robot’s fate being made explicit.

In a way, I find the ethics query (was the robot Frank’s friend or just a machine?) posed in the film more interesting than the one in Vikander’s story, an issue which does have a history. For example, care aides, nurses, and/or servants would have dealt with requests to give an alcoholic patient a drink. Wouldn’t there  already be established guidelines and practices which could be adapted for robots? Or, is this question made anew by something intrinsically different about robots?

To be clear, Vikander’s story is a good introduction and starting point for these kinds of discussions as is Moon’s ethical question. But they are starting points and I hope one day there’ll be a more extended discussion of the questions raised by Moon and noted in Vikander’s article (a two- or three-part series of articles? public discussions?).

How will humans react to robots?

Earlier there was the contention that intimate interactions with robots and sexbots would decrease empathy and the ability of human beings to interact with each other in caring ways. This sounds a bit like the argument about smartphones/cell phones and teenagers who don’t relate well to others in real life because most of their interactions are mediated through a screen, which many seem to prefer. It may be partially true but, arguably,, books too are an antisocial technology as noted in Walter J. Ong’s  influential 1982 book, ‘Orality and Literacy’,  (from the Walter J. Ong Wikipedia entry),

A major concern of Ong’s works is the impact that the shift from orality to literacy has had on culture and education. Writing is a technology like other technologies (fire, the steam engine, etc.) that, when introduced to a “primary oral culture” (which has never known writing) has extremely wide-ranging impacts in all areas of life. These include culture, economics, politics, art, and more. Furthermore, even a small amount of education in writing transforms people’s mentality from the holistic immersion of orality to interiorization and individuation. [emphases mine]

So, robotics and artificial intelligence would not be the first technologies to affect our brains and our social interactions.

There’s another area where human-robot interaction may have unintended personal consequences according to April Glaser’s Sept. 14, 2017 article on Slate.com (Note: Links have been removed),

The customer service industry is teeming with robots. From automated phone trees to touchscreens, software and machines answer customer questions, complete orders, send friendly reminders, and even handle money. For an industry that is, at its core, about human interaction, it’s increasingly being driven to a large extent by nonhuman automation.

But despite the dreams of science-fiction writers, few people enter a customer-service encounter hoping to talk to a robot. And when the robot malfunctions, as they so often do, it’s a human who is left to calm angry customers. It’s understandable that after navigating a string of automated phone menus and being put on hold for 20 minutes, a customer might take her frustration out on a customer service representative. Even if you know it’s not the customer service agent’s fault, there’s really no one else to get mad at. It’s not like a robot cares if you’re angry.

When human beings need help with something, says Madeleine Elish, an anthropologist and researcher at the Data and Society Institute who studies how humans interact with machines, they’re not only looking for the most efficient solution to a problem. They’re often looking for a kind of validation that a robot can’t give. “Usually you don’t just want the answer,” Elish explained. “You want sympathy, understanding, and to be heard”—none of which are things robots are particularly good at delivering. In a 2015 survey of over 1,300 people conducted by researchers at Boston University, over 90 percent of respondents said they start their customer service interaction hoping to speak to a real person, and 83 percent admitted that in their last customer service call they trotted through phone menus only to make their way to a human on the line at the end.

“People can get so angry that they have to go through all those automated messages,” said Brian Gnerer, a call center representative with AT&T in Bloomington, Minnesota. “They’ve been misrouted or been on hold forever or they pressed one, then two, then zero to speak to somebody, and they are not getting where they want.” And when people do finally get a human on the phone, “they just sigh and are like, ‘Thank God, finally there’s somebody I can speak to.’ ”

Even if robots don’t always make customers happy, more and more companies are making the leap to bring in machines to take over jobs that used to specifically necessitate human interaction. McDonald’s and Wendy’s both reportedly plan to add touchscreen self-ordering machines to restaurants this year. Facebook is saturated with thousands of customer service chatbots that can do anything from hail an Uber, retrieve movie times, to order flowers for loved ones. And of course, corporations prefer automated labor. As Andy Puzder, CEO of the fast-food chains Carl’s Jr. and Hardee’s and former Trump pick for labor secretary, bluntly put it in an interview with Business Insider last year, robots are “always polite, they always upsell, they never take a vacation, they never show up late, there’s never a slip-and-fall, or an age, sex, or race discrimination case.”

But those robots are backstopped by human beings. How does interacting with more automated technology affect the way we treat each other? …

“We know that people treat artificial entities like they’re alive, even when they’re aware of their inanimacy,” writes Kate Darling, a researcher at MIT who studies ethical relationships between humans and robots, in a recent paper on anthropomorphism in human-robot interaction. Sure, robots don’t have feelings and don’t feel pain (not yet, anyway). But as more robots rely on interaction that resembles human interaction, like voice assistants, the way we treat those machines will increasingly bleed into the way we treat each other.

It took me a while to realize that what Glaser is talking about are AI systems and not robots as such. (sigh) It’s so easy to conflate the concepts.

AI ethics (Toby Walsh and Suzanne Gildert)

Jack Stilgoe of the Guardian published a brief Oct. 9, 2017 introduction to his more substantive (30 mins.?) podcast interview with Dr. Toby Walsh where they discuss stupid AI amongst other topics (Note: A link has been removed),

Professor Toby Walsh has recently published a book – Android Dreams – giving a researcher’s perspective on the uncertainties and opportunities of artificial intelligence. Here, he explains to Jack Stilgoe that we should worry more about the short-term risks of stupid AI in self-driving cars and smartphones than the speculative risks of super-intelligence.

Professor Walsh discusses the effects that AI could have on our jobs, the shapes of our cities and our understandings of ourselves. As someone developing AI, he questions the hype surrounding the technology. He is scared by some drivers’ real-world experimentation with their not-quite-self-driving Teslas. And he thinks that Siri needs to start owning up to being a computer.

I found this discussion to cast a decidedly different light on the future of robotics and AI. Walsh is much more interested in discussing immediate issues like the problems posed by ‘self-driving’ cars. (Aside: Should we be calling them robot cars?)

One ethical issue Walsh raises is with data regarding accidents. He compares what’s happening with accident data from self-driving (robot) cars to how the aviation industry handles accidents. Hint: accident data involving air planes is shared. Would you like to guess who does not share their data?

Sharing and analyzing data and developing new safety techniques based on that data has made flying a remarkably safe transportation technology.. Walsh argues the same could be done for self-driving cars if companies like Tesla took the attitude that safety is in everyone’s best interests and shared their accident data in a scheme similar to the aviation industry’s.

In an Oct. 12, 2017 article by Matthew Braga for Canadian Broadcasting Corporation (CBC) news online another ethical issue is raised by Suzanne Gildert (a participant in the Canadian Robotics Roadmap/Strategy meetings mentioned earlier here), Note: Links have been removed,

… Suzanne Gildert, the co-founder and chief science officer of Vancouver-based robotics company Kindred. Since 2014, her company has been developing intelligent robots [emphasis mine] that can be taught by humans to perform automated tasks — for example, handling and sorting products in a warehouse.

The idea is that when one of Kindred’s robots encounters a scenario it can’t handle, a human pilot can take control. The human can see, feel and hear the same things the robot does, and the robot can learn from how the human pilot handles the problematic task.

This process, called teleoperation, is one way to fast-track learning by manually showing the robot examples of what its trainers want it to do. But it also poses a potential moral and ethical quandary that will only grow more serious as robots become more intelligent.

“That AI is also learning my values,” Gildert explained during a talk on robot ethics at the Singularity University Canada Summit in Toronto on Wednesday [Oct. 11, 2017]. “Everything — my mannerisms, my behaviours — is all going into the AI.”

At its worst, everything from algorithms used in the U.S. to sentence criminals to image-recognition software has been found to inherit the racist and sexist biases of the data on which it was trained.

But just as bad habits can be learned, good habits can be learned too. The question is, if you’re building a warehouse robot like Kindred is, is it more effective to train those robots’ algorithms to reflect the personalities and behaviours of the humans who will be working alongside it? Or do you try to blend all the data from all the humans who might eventually train Kindred robots around the world into something that reflects the best strengths of all?

I notice Gildert distinguishes her robots as “intelligent robots” and then focuses on AI and issues with bias which have already arisen with regard to algorithms (see my May 24, 2017 posting about bias in machine learning, AI, and .Note: if you’re in Vancouver on Oct. 26, 2017 and interested in algorithms and bias), there’s a talk being given by Dr. Cathy O’Neil, author the Weapons of Math Destruction, on the topic of Gender and Bias in Algorithms. It’s not free but  tickets are here.)

Final comments

There is one more aspect I want to mention. Even as someone who usually deals with nanobots, it’s easy to start discussing robots as if the humanoid ones are the only ones that exist. To recapitulate, there are humanoid robots, utilitarian robots, intelligent robots, AI, nanobots, ‘microscopic bots, and more all of which raise questions about ethics and social impacts.

However, there is one more category I want to add to this list: cyborgs. They live amongst us now. Anyone who’s had a hip or knee replacement or a pacemaker or a deep brain stimulator or other such implanted device qualifies as a cyborg. Increasingly too, prosthetics are being introduced and made part of the body. My April 24, 2017 posting features this story,

This Case Western Reserve University (CRWU) video accompanies a March 28, 2017 CRWU news release, (h/t ScienceDaily March 28, 2017 news item)

Bill Kochevar grabbed a mug of water, drew it to his lips and drank through the straw.

His motions were slow and deliberate, but then Kochevar hadn’t moved his right arm or hand for eight years.

And it took some practice to reach and grasp just by thinking about it.

Kochevar, who was paralyzed below his shoulders in a bicycling accident, is believed to be the first person with quadriplegia in the world to have arm and hand movements restored with the help of two temporarily implanted technologies. [emphasis mine]

A brain-computer interface with recording electrodes under his skull, and a functional electrical stimulation (FES) system* activating his arm and hand, reconnect his brain to paralyzed muscles.

Does a brain-computer interface have an effect on human brain and, if so, what might that be?

In any discussion (assuming there is funding for it) about ethics and social impact, we might want to invite the broadest range of people possible at an ‘earlyish’ stage (although we’re already pretty far down the ‘automation road’) stage or as Jack Stilgoe and Toby Walsh note, technological determinism holds sway.

Once again here are links for the articles and information mentioned in this double posting,

That’s it!

ETA Oct. 16, 2017: Well, I guess that wasn’t quite ‘it’. BBC’s (British Broadcasting Corporation) Magazine published a thoughtful Oct. 15, 2017 piece titled: Can we teach robots ethics?

Quadriplegic man reanimates a limb with implanted brain-recording and muscle-stimulating systems

It took me a few minutes to figure out why this item about a quadriplegic (also known as, tetraplegic) man is news. After all, I have a May 17, 2012 posting which features a video and information about a quadri(tetra)plegic woman who was drinking her first cup of coffee, independently, in many years. The difference is that she was using an external robotic arm and this man is using *his own arm*,

This Case Western Reserve University (CRWU) video accompanies a March 28, 2017 CRWU news release, (h/t ScienceDaily March 28, 2017 news item)

Bill Kochevar grabbed a mug of water, drew it to his lips and drank through the straw.

His motions were slow and deliberate, but then Kochevar hadn’t moved his right arm or hand for eight years.

And it took some practice to reach and grasp just by thinking about it.

Kochevar, who was paralyzed below his shoulders in a bicycling accident, is believed to be the first person with quadriplegia in the world to have arm and hand movements restored with the help of two temporarily implanted technologies.

A brain-computer interface with recording electrodes under his skull, and a functional electrical stimulation (FES) system* activating his arm and hand, reconnect his brain to paralyzed muscles.

Holding a makeshift handle pierced through a dry sponge, Kochevar scratched the side of his nose with the sponge. He scooped forkfuls of mashed potatoes from a bowl—perhaps his top goal—and savored each mouthful.

“For somebody who’s been injured eight years and couldn’t move, being able to move just that little bit is awesome to me,” said Kochevar, 56, of Cleveland. “It’s better than I thought it would be.”

Kochevar is the focal point of research led by Case Western Reserve University, the Cleveland Functional Electrical Stimulation (FES) Center at the Louis Stokes Cleveland VA Medical Center and University Hospitals Cleveland Medical Center (UH). A study of the work was published in the The Lancet March 28 [2017] at 6:30 p.m. U.S. Eastern time.

“He’s really breaking ground for the spinal cord injury community,” said Bob Kirsch, chair of Case Western Reserve’s Department of Biomedical Engineering, executive director of the FES Center and principal investigator (PI) and senior author of the research. “This is a major step toward restoring some independence.”

When asked, people with quadriplegia say their first priority is to scratch an itch, feed themselves or perform other simple functions with their arm and hand, instead of relying on caregivers.

“By taking the brain signals generated when Bill attempts to move, and using them to control the stimulation of his arm and hand, he was able to perform personal functions that were important to him,” said Bolu Ajiboye, assistant professor of biomedical engineering and lead study author.

Technology and training

The research with Kochevar is part of the ongoing BrainGate2* pilot clinical trial being conducted by a consortium of academic and VA institutions assessing the safety and feasibility of the implanted brain-computer interface (BCI) system in people with paralysis. Other investigational BrainGate research has shown that people with paralysis can control a cursor on a computer screen or a robotic arm (braingate.org).

“Every day, most of us take for granted that when we will to move, we can move any part of our body with precision and control in multiple directions and those with traumatic spinal cord injury or any other form of paralysis cannot,” said Benjamin Walter, associate professor of neurology at Case Western Reserve School of Medicine, clinical PI of the Cleveland BrainGate2 trial and medical director of the Deep Brain Stimulation Program at UH Cleveland Medical Center.

“The ultimate hope of any of these individuals is to restore this function,” Walter said. “By restoring the communication of the will to move from the brain directly to the body this work will hopefully begin to restore the hope of millions of paralyzed individuals that someday they will be able to move freely again.”

Jonathan Miller, assistant professor of neurosurgery at Case Western Reserve School of Medicine and director of the Functional and Restorative Neurosurgery Center at UH, led a team of surgeons who implanted two 96-channel electrode arrays—each about the size of a baby aspirin—in Kochevar’s motor cortex, on the surface of the brain.

The arrays record brain signals created when Kochevar imagines movement of his own arm and hand. The brain-computer interface extracts information from the brain signals about what movements he intends to make, then passes the information to command the electrical stimulation system.

To prepare him to use his arm again, Kochevar first learned how to use his brain signals to move a virtual-reality arm on a computer screen.

“He was able to do it within a few minutes,” Kirsch said. “The code was still in his brain.”

As Kochevar’s ability to move the virtual arm improved through four months of training, the researchers believed he would be capable of controlling his own arm and hand.

Miller then led a team that implanted the FES systems’ 36 electrodes that animate muscles in the upper and lower arm.

The BCI decodes the recorded brain signals into the intended movement command, which is then converted by the FES system into patterns of electrical pulses.

The pulses sent through the FES electrodes trigger the muscles controlling Kochevar’s hand, wrist, arm, elbow and shoulder. To overcome gravity that would otherwise prevent him from raising his arm and reaching, Kochevar uses a mobile arm support, which is also under his brain’s control.

New Capabilities

Eight years of muscle atrophy required rehabilitation. The researchers exercised Kochevar’s arm and hand with cyclical electrical stimulation patterns. Over 45 weeks, his strength, range of motion and endurance improved. As he practiced movements, the researchers adjusted stimulation patterns to further his abilities.

Kochevar can make each joint in his right arm move individually. Or, just by thinking about a task such as feeding himself or getting a drink, the muscles are activated in a coordinated fashion.

When asked to describe how he commanded the arm movements, Kochevar told investigators, “I’m making it move without having to really concentrate hard at it…I just think ‘out’…and it goes.”

Kocehvar is fitted with temporarily implanted FES technology that has a track record of reliable use in people. The BCI and FES system together represent early feasibility that gives the research team insights into the potential future benefit of the combined system.

Advances needed to make the combined technology usable outside of a lab are not far from reality, the researchers say. Work is underway to make the brain implant wireless, and the investigators are improving decoding and stimulation patterns needed to make movements more precise. Fully implantable FES systems have already been developed and are also being tested in separate clinical research.

Kochevar welcomes new technology—even if it requires more surgery—that will enable him to move better. “This won’t replace caregivers,” he said. “But, in the long term, people will be able, in a limited way, to do more for themselves.”

There is more about the research in a March 29, 2017 article by Sarah Boseley for The Guardian,

Bill Kochevar, 53, has had electrical implants in the motor cortex of his brain and sensors inserted in his forearm, which allow the muscles of his arm and hand to be stimulated in response to signals from his brain, decoded by computer. After eight years, he is able to drink and feed himself without assistance.

“I think about what I want to do and the system does it for me,” Kochevar told the Guardian. “It’s not a lot of thinking about it. When I want to do something, my brain does what it does.”

The experimental technology, pioneered by the Case Western Reserve University in Cleveland, Ohio, is the first in the world to restore brain-controlled reaching and grasping in a person with complete paralysis.

For now, the process is relatively slow, but the scientists behind the breakthrough say this is proof of concept and that they hope to streamline the technology until it becomes a routine treatment for people with paralysis. In the future, they say, it will also be wireless and the electrical arrays and sensors will all be implanted under the skin and invisible.

A March 28, 2017 Lancet news release on EurekAlert provides a little more technical insight into the research and Kochevar’s efforts,

Although only tested with one participant, the study is a major advance and the first to restore brain-controlled reaching and grasping in a person with complete paralysis. The technology, which is only for experimental use in the USA, circumvents rather than repairs spinal injuries, meaning the participant relies on the device being implanted and switched on to move.

“Our research is at an early stage, but we believe that this neuro-prosthesis could offer individuals with paralysis the possibility of regaining arm and hand functions to perform day-to-day activities, offering them greater independence,” said lead author Dr Bolu Ajiboye, Case Western Reserve University, USA. “So far it has helped a man with tetraplegia to reach and grasp, meaning he could feed himself and drink. With further development, we believe the technology could give more accurate control, allowing a wider range of actions, which could begin to transform the lives of people living with paralysis.” [1]

Previous research has used similar elements of the neuro-prosthesis. For example, a brain-computer interface linked to electrodes on the skin has helped a person with less severe paralysis open and close his hand, while other studies have allowed participants to control a robotic arm using their brain signals. However, this is the first to restore reaching and grasping via the system in a person with a chronic spinal cord injury.

In this study, a 53 year-old man who had been paralysed below the shoulders for eight years underwent surgery to have the neuro-prosthesis fitted.

This involved brain surgery to place sensors in the motor cortex area of his brain responsible for hand movement – creating a brain-computer interface that learnt which movements his brain signals were instructing for. This initial stage took four months and included training using a virtual reality arm.

He then underwent another procedure placing 36 muscle stimulating electrodes into his upper and lower arm, including four that helped restore finger and thumb, wrist, elbow and shoulder movements. These were switched on 17 days after the procedure, and began stimulating the muscles for eight hours a week over 18 weeks to improve strength, movement and reduce muscle fatigue.

The researchers then wired the brain-computer interface to the electrical stimulators in his arm, using a decoder (mathematical algorithm) to translate his brain signals into commands for the electrodes in his arm. The electrodes stimulated the muscles to produce contractions, helping the participant intuitively complete the movements he was thinking of. The system also involved an arm support to stop gravity simply pulling his arm down.

During his training, the participant described how he controlled the neuro-prosthesis: “It’s probably a good thing that I’m making it move without having to really concentrate hard at it. I just think ‘out’ and it just goes.”

After 12 months of having the neuro-prosthesis fitted, the participant was asked to complete day-to-day tasks, including drinking a cup of coffee and feeding himself. First of all, he observed while his arm completed the action under computer control. During this, he thought about making the same movement so that the system could recognise the corresponding brain signals. The two systems were then linked and he was able to use it to drink a coffee and feed himself.

He successfully drank in 11 out of 12 attempts, and it took him roughly 20-40 seconds to complete the task. When feeding himself, he did so multiple times – scooping forkfuls of food and navigating his hand to his mouth to take several bites.

“Although similar systems have been used before, none of them have been as easy to adopt for day-to-day use and they have not been able to restore both reaching and grasping actions,” said Dr Ajiboye. “Our system builds on muscle stimulating electrode technology that is already available and will continue to improve with the development of new fully implanted and wireless brain-computer interface systems. This could lead to enhanced performance of the neuro-prosthesis with better speed, precision and control.” [1]

At the time of the study, the participant had had the neuro-prosthesis implanted for almost two years (717 days) and in this time experienced four minor, non-serious adverse events which were treated and resolved.

Despite its achievements, the neuro-prosthesis still had some limitations, including that movements made using it were slower and less accurate than those made using the virtual reality arm the participant used for training. When using the technology, the participant also needed to watch his arm as he lost his sense of proprioception – the ability to intuitively sense the position and movement of limbs – as a result of the paralysis.

Writing in a linked Comment, Dr Steve Perlmutter, University of Washington, USA, said: “The goal is futuristic: a paralysed individual thinks about moving her arm as if her brain and muscles were not disconnected, and implanted technology seamlessly executes the desired movement… This study is groundbreaking as the first report of a person executing functional, multi-joint movements of a paralysed limb with a motor neuro-prosthesis. However, this treatment is not nearly ready for use outside the lab. The movements were rough and slow and required continuous visual feedback, as is the case for most available brain-machine interfaces, and had restricted range due to the use of a motorised device to assist shoulder movements… Thus, the study is a proof-of-principle demonstration of what is possible, rather than a fundamental advance in neuro-prosthetic concepts or technology. But it is an exciting demonstration nonetheless, and the future of motor neuro-prosthetics to overcome paralysis is brighter.”

[1] Quote direct from author and cannot be found in the text of the Article.

Here’s a link to and a citation for the paper,

Restoration of reaching and grasping movements through brain-controlled muscle stimulation in a person with tetraplegia: a proof-of-concept demonstration by A Bolu Ajiboye, Francis R Willett, Daniel R Young, William D Memberg, Brian A Murphy, Jonathan P Miller, Benjamin L Walter, Jennifer A Sweet, Harry A Hoyen, Michael W Keith, Prof P Hunter Peckham, John D Simeral, Prof John P Donoghue, Prof Leigh R Hochberg, Prof Robert F Kirsch. The Lancet DOI: http://dx.doi.org/10.1016/S0140-6736(17)30601-3 Published: 28 March 2017 [online?]

This paper is behind a paywall.

For anyone  who’s interested, you can find the BrainGate website here.

*I initially misidentified the nature of the achievement and stated that Kochevar used a “robotic arm, which is attached to his body” when it was his own reanimated arm. Corrected on April 25, 2017.