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cbirt · 8 months

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In a groundbreaking advancement, researchers from Stanford University have developed a speech brain-computer interface (BCI) that holds significant promise for individuals with paralysis. By capturing neural signals generated during attempted speech through intracortical microelectrode arrays, this novel BCI achieved remarkable results. A participant afflicted with amyotrophic lateral sclerosis (ALS), rendering them unable to speak coherently, achieved an impressive 9.1% word error rate with a 50-word vocabulary and a 23.8% error rate with a vast 125,000-word vocabulary. This marks the first successful demonstration of decoding speech from a large vocabulary using such technology. Notably, the BCI enabled speech decoding at a rapid pace of 62 words per minute, surpassing prior records by 3.4 times. Encouragingly, the study revealed neural patterns that facilitate accurate decoding from a small cortical region and retained detailed speech representations even after years of paralysis. These findings illuminate a promising path toward restoring efficient communication for paralyzed individuals who have lost the ability to speak.

The organization of orofacial movement and speech production within the motor cortex at a single-neuron resolution is not very well-known. To explore this, neural activity was recorded through four microelectrode arrays, two in the ventral premotor cortex (area 6v) and two in area 44, a component of Broca’s area. The participant, who had bulbar-onset ALS, exhibited restricted orofacial movement and vocalization capabilities but lacked intelligible speech. The findings revealed distinct patterns in area 6v, where strong tuning was observed across all tested movement categories.

This encompassed the successful decoding of various orofacial movements, phonemes, and words with high accuracy. In contrast, area 44, previously linked to higher-order speech aspects, exhibited negligible information related to these categories. Interestingly, speech decoding proved more precise in the ventral array, particularly during the instructed delay phase, aligning with language-associated networks identified through fMRI data.

#brain-computer interface #artificial intelligence #bioinformatics #paralysis #speech #brain health

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thepastisalreadywritten · 11 months

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The patient Gert-Jan Oskam said the breakthrough had given him "a freedom that I did not have" before.

The 40-year-old Dutchman has been paralysed in his legs for more than a decade after suffering a spinal cord injury during a bicycle accident.

However, using a new system, he can now walk "naturally," take on difficult terrain, and even climb stairs, according to a study published in the journal Nature.

The advance is the result of more than a decade of work by a team of researchers in France and Switzerland.

Last year, the team showed that a spinal cord implant -- which sends electrical pulses to stimulate movement in leg muscles -- had allowed three paralysed patients to walk again.

But they needed to press a button to move their legs each time.

Gert-Jan, who also has the spinal implant, said this made it difficult to get into the rhythm of taking a "natural step."

'Digital bridge'

The latest research combines the spinal implant with new technology called a brain-computer interface, which is implanted above the part of the brain that controls leg movement.

"The interface uses algorithms based on artificial intelligence methods to decode brain recordings in real time," the researchers said.

This allows the interface, which was designed by researchers at France's Atomic Energy Commission (CEA), to work out how the patient wants to move their legs at any moment.

The data is transmitted to the spinal cord implant via a portable device that fits in a walker or small backpack, allowing patients to get around without help from others.

The two implants build what the researchers call a "digital bridge" to cross the disconnect between the spinal cord and brain that was created during Gert-Jan's accident.

"Now I can just do what I want -- when I decide to make a step the stimulation will kick in as soon as I think about it," Gert-Jan said.

After undergoing invasive surgery twice to implant both devices, "it has been a long journey to get here," he told a press conference in the Swiss city of Lausanne.

But among other changes, he is now able to stand at a bar again with friends while having a beer.

"This simple pleasure represents a significant change in my life," he said in a statement.

'Radically different'

Gregoire Courtine, a neuroscientist at Switzerland's Ecole Polytechnique Federale de Lausanne and a study co-author, said it was "radically different" from what had been accomplished before.

"Previous patients walked with a lot of effort -- now one just needs to think about walking to take a step," he told a press conference in the Swiss city of Lausanne.

There was another positive sign: following six months of training, Gert-Jan recovered some sensory perception and motor skills that he had lost in the accident.

He was even able to walk with crutches when the "digital bridge" was turned off.

Guillaume Charvet, a researcher at France's CEA, told AFP this suggests "that the establishment of a link between the brain and spinal cord would promote a reorganisation of the neuronal networks at the site of the injury."

So when could this technology be available to paralysed people around the world? Charvet cautioned it will take "many more years of research" to get to that point.

But the team are already preparing a trial to study whether this technology can restore function in arms and hands.

They also hope it could apply to other problems such as paralysis caused by stroke.

(AFP)

youtube

24 May 2023

#Youtube #Gert-Jan Oskam #spinal cord implant #brain-computer interface #Atomic Energy Commission (CEA)#digital bridge #Gregoire Courtine #Ecole Polytechnique Federale de Lausanne #Guillaume Charvet #spinal cord injury #Nature #paralysed patients

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as-facts · 1 year

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A Look Inside Elon Musk's Rygar Enterprises

Learn about Elon Musk's Rygar Enterprises, its history, projects, and plans for the future of technology. Discover about rygar enterprises.

Introduction: Who hasn’t heard of Elon Musk? His name is practically inseparable from concepts such as innovation, ambition, and an unyielding pursuit of progress. This titan of the industry has a long and storied career, from his founding of PayPal to his more recent ventures like Tesla, SpaceX, and The Boring Company. But now, he’s made yet another move that’s sure to shake things up: the…

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afutureworththinkingabout · 1 year

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Further Thoughts on the "Blueprint for an AI Bill of Rights"

So with the job of White House Office of Science and Technology Policy director having gone to Dr. Arati Prabhakar back in October, rather than Dr. Alondra Nelson, and the release of the "Blueprint for an AI Bill of Rights" (henceforth "BfaAIBoR" or "blueprint") a few weeks after that, I am both very interested also pretty worried to see what direction research into "artificial intelligence" is actually going to take from here.

To be clear, my fundamental problem with the "Blueprint for an AI bill of rights" is that while it pays pretty fine lip-service to the ideas of community-led oversight, transparency, and abolition of and abstaining from developing certain tools, it begins with, and repeats throughout, the idea that sometimes law enforcement, the military, and the intelligence community might need to just… ignore these principles. Additionally, Dr. Prabhakar was director of DARPA for roughly five years, between 2012 and 2015, and considering what I know for a fact got funded within that window? Yeah.

To put a finer point on it, 14 out of 16 uses of the phrase "law enforcement" and 10 out of 11 uses of "national security" in this blueprint are in direct reference to why those entities' or concept structures' needs might have to supersede the recommendations of the BfaAIBoR itself. The blueprint also doesn't mention the depredations of extant military "AI" at all. Instead, it points to the idea that the Department Of Defense (DoD) "has adopted [AI] Ethical Principles, and tenets for Responsible Artificial Intelligence specifically tailored to its [national security and defense] activities." And so with all of that being the case, there are several current "AI" projects in the pipe which a blueprint like this wouldn't cover, even if it ever became policy, and frankly that just fundamentally undercuts Much of the real good a project like this could do.

For instance, at present, the DoD's ethical frames are entirely about transparency, explainability, and some lipservice around equitability and "deliberate steps to minimize unintended bias in Al …" To understand a bit more of what I mean by this, here's the DoD's "Responsible Artificial Intelligence Strategy…" pdf (which is not natively searchable and I had to OCR myself, so heads-up); and here's the Office of National Intelligence's "ethical principles" for building AI. Note that not once do they consider the moral status of the biases and values they have intentionally baked into their systems.

Read the rest of Further Thoughts on the "Blueprint for the AI Bill of Rights" at A Future Worth Thinking About

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bpod-bpod · 2 years

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Auto Pilot

A burst tyre in the fast lane, a pocket of turbulence at 15,000 feet – human pilots are often thrown by unexpected events. To spot what happens to the brain in the split-seconds after a jolt, test pilots in this cockpit were rocked at random by a robotic arm. The unpredicted interruptions were designed to spot something predictable in a moment of chaos – the brain’s immediate response to a loss of balance. Researchers used electroencephalography to measure patterns of electrical activity called perturbation evoked potentials across each pilots’ scalp – spotting and later predicting patterns specific to jolts in different directions and angles. Quick detection of these patterns during real flying and driving might allow computers to temporarily take the wheel while the pilot recovers – an example of a brain-computer interface that may save lives.

Written by John Ankers

Image from work by Shayan Jalilpour and Gernot Müller-Putz

Institute of Neural Engineering, Graz University of Technology, Graz, Austria

Image originally published with a Creative Commons Attribution 4.0 International (CC BY 4.0)

Published in Scientific Reports, April 2022

You can also follow BPoD on Instagram, Twitter and Facebook

#science #biomedicine #neuroscience #brain #computer simulation #brain-computer interface #eeg #pilots #driving #car accidents #reaction times #cockpit

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neosciencehub · 3 months

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Pioneering BCI : Journey Before Neuralink

Pioneering BCI : Journey Before Neuralink @neosciencehub #neosciencehub #science #neuralink #neurotechnology #neurotech #neuroscience #BrownUniversity #scientific #BCI #JohnDonoghue #braincomputer #research #BlackrockNeurotech #NSH #BrainImplants

The recent success of Neuralink in implanting a brain-computer interface (BCI) in a human brain has captured the world’s attention. However, it’s crucial to recognize that this achievement stands on the shoulders of numerous pioneering efforts in the field of neurotechnology. This article explores the significant contributions made before Neuralink that have shaped the current landscape of BCI…

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#BCI Breakthroughs #BCI Development #Blackrock Neurotech #Brain Implants #Brain-Computer Interface #featured #John Donoghue #Neuralink #Neurological Innovation #Neuroscientific Advancements #Neurotechnology Pioneers #Precision Neuroscience #sciencenews

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open-era · 8 months

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Next-Gen Tech: The Rise and Potential of Brain-Computer Interfaces (BCIs)

🧠💻 Mind meets machine: The stuff of sci-fi dreams is becoming real with Brain-Computer Interfaces! Imagine controlling tech with your thoughts. 🚀 Get ready to explore the limitless possibilities of BCIs. The future is now! #BCIs #Tech #ElonMusk

Imagine a world where you can make things happen with just your thoughts. As technology zooms ahead, something truly mind-blowing is emerging: Brain-Computer Interfaces, or BCIs. These amazing devices are like bridges between our minds and computers, creating a future where our thoughts and computers work together like never before. Let’s explore the incredible world of BCIs and see how they’re…

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#Brain signals #Brain Tech #Brain-Computer Interface #Bright Fututre #Digital Transformation #Elon Musk #Healthcare Advancements #Healthcare Technology #Innovation #Neuralink #Neurology

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thewitfire · 9 months

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Unleashing the Power of the Mind: Revolutionary Brain-Computer Interface Unveiled!

Unleashing the Power of the Mind: Revolutionary Brain-Computer Interface Unveiled! #Brain #brain-computer

Brain-Computer Interface: In a groundbreaking development that could redefine the boundaries of human potential, scientists from the University of Cambridge have unveiled a state-of-the-art brain-computer interface (BCI) that promises to revolutionize how we interact with technology. This cutting-edge device, which has been hailed as a game-changer in the field of neurotechnology, allows users to…

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#Brain-Computer Interface #Power of the Mind

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rodspurethoughts · 1 year

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Brain-Computer Interface Helps Immobilized Patients Control Devices with Thoughts

Exciting news! Researchers at Aalto University are developing a brain-computer interface to help immobilized patients control devices with their thoughts. #braincomputerinterface #healthtech

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#Bittium Biosignals #brain-computer interface #EEG technology #Finnish Research Impact Foundation.#immobilized patients #mTMS #multi-locus transcranial magnetic stimulation #neurological conditions #real-time data streaming

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robpegoraro · 1 year

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Weekly output: Pixel 5a repair, Spectrum One, defining AI, innovating through a crisis, Alexa ambitions, Comcast uploads, brain-computer interfaces, digital personalization, Microsoft supports Ukraine, Seaborg nuclear power, Facebook Oversight Board, Signal

My last international trip of the year wrapped up Saturday afternoon with my last landing at Dulles Airport without a Metro station there in revenue service. And I have somehow already posted my Flickr album from this week’s Web Summit trip. 10/31/2022: DIY Demo: Just How Easy Is It to Fix Your Phone’s Shattered Screen Yourself?, PCMag My recap of successfully replacing my Pixel 5a’s shattered…

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stemgirlchic · 2 months

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why neuroscience is cool

space & the brain are like the two final frontiers

we know just enough to know we know nothing

there are radically new theories all. the. time. and even just in my research assistant work i've been able to meet with, talk to, and work with the people making them

it's such a philosophical science

potential to do a lot of good in fighting neurological diseases

things like BCI (brain computer interface) and OI (organoid intelligence) are soooooo new and anyone's game - motivation to study hard and be successful so i can take back my field from elon musk

machine learning is going to rapidly increase neuroscience progress i promise you. we get so caught up in AI stealing jobs but yes please steal my job of manually analyzing fMRI scans please i would much prefer to work on the science PLUS computational simulations will soon >>> animal testing to make all drug testing safer and more ethical !! we love ethical AI <3

collab with...everyone under the sun - psychologists, philosophers, ethicists, physicists, molecular biologists, chemists, drug development, machine learning, traditional computing, business, history, education, literally try to name a field we don't work with

it's the brain eeeeee

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gorrus · 2 months

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#cyber #user interface #brain computer interfaces #visual art #visual stim

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qwertyfingers · 25 days

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dads been getting back into making music in a big way and its so funny to have lots of back and forth about cool experimental stuff we've come across and i ask how his own tinkering is going and he tells me he's spent the last 2 days perfecting the setup on his RGB keyboard instead

#terminal computer guy brain #he couldn't get his new pedalboard to interface wiht linux at all so he bought a new windows gaming laptop to run the softwar #i convinced him to play no mans skya few months back and he got really into the soundtrack and hes like #i cant get a whole synth setup i just got this new guitar last year but also i need one.#very fun for me who has zero musical ability beyond a good vocal range.

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transingthoseformers · 1 year

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*inhale*

i sWEAR TO PRIMUS THIS COMIC FUC—

#maccadam #transformers #comic reading #okay but this made me think because he's ckearly alluding to the mnemosurgery #i realized that back when it was mentioned with Overlord and then proceeded to forget #because clearly the term interfacing is falling closer with the computer aspect #thinking about when ratchet mentioned rewind and Chromedome interfacing and yes I'm being mature here #because from what i can see here is it's a connection. I'm betting that mnemosurgery is simply a '' deeper '' form of it #(as it allows them to access both memories and the mind directly)#and yes i can see why that would be very dangerous— opening such a deeply wired connection with something past tense #because with Overlord we clearly see it's a two way connection (even if a lot of mecha do not know it is)#and you do not want dead brain backing up into live brain #plus it seems like the longer a frame has been dead the more dangerous and frayed the details get

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sevicia · 1 month

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I wanted to make a cleaner summary of last week's classes and also review the classes I have this week since the material is already uploaded beforehand but I was feeling so horrible throughout the day that when I sat down I was just gonna look at the ones for tomorrow but I think I'm just gonna go to bed because I just gave my little numbers game a few tries and not even the joy of tribial elementary school-level math games is bringing my brain cells and/or full sentience back

#diary #accessing it through the CMD thing and not just running it from the IDE made me realize a few things about it though so I'll hav #I'll have to maybe jot them down somewhere when I'd normally just be rly excited and try to fix them straight away like I am truly fucked r #I do wanna make an eng version of it sometime soon so I can share it even tho it's literally the simplest little thing. it's fun if you're #an easily amused nerd that loves playing with numbers in a truly useless manner. if that makes sense #also very obviously text-only I am NOT torturing myself with any graphics of ANY kind rn #it closes immediatly as they do and also when it comes to having double/triple digit starting numbers it becomes a lot less fun I think tho #though I haven't used it much with those yet #I still wanna figure out a way of making it better when it comes to 2/3 digit starters. and my original idea included maybe keeping track #keeping track of how many steps you took even between different rounds but I made the simplest version for now. I also think making like a #''this was the least amount of steps possible!'' type thing would be very very cool but that is FAR too big brained for me rn #cause I can figure out how to do the record keeping thing but that last one is like. let's stop talking for a little while.................#oh but adding an actual interface sounds so fun even though I have very little clue on how to do that rn I could probably STOP typing becau #because I can feel my stupid ass self start getting excited about this which will make it so I start working on it instead of going to bed #NO. DOWN !!!!!!!!!!!!!! auhgh............ oh man I had a lame joke to make but I completely forgot what it was #I have coding class tomorrow in which I normally just do the exercises as fast as possible before playing around but the only Python editor #I could find installed on the school computers was Visual Studio Code and I have no clue how to use that shit like I don't need so many #so many buttons. probz. OKAY GOODNIGHT

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neosciencehub · 3 months

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Neuralink's Human Trials: Regulatory Hurdles of Neurotechnology

Neuralink's Human Trials: Regulatory Hurdles of Neurotechnology @neosciencehub #neosciencehub #science #neuralink #humantrails #neurotechnology #elonmusk #FDA #healthcare #medicalscience #ClinicalResearch #health #AITech #BrainComputer #DataPrivacy #NSH

The journey of Neuralink, Elon Musk’s ambitious neurotechnology venture, to its first human trials represents a significant achievement in the field of biomedical innovation. However, this path was not without its challenges. Neo Science Hub’s Scientific Advisory Team examines the intricate regulatory landscape that companies like Neuralink must navigate, highlighting the complex interplay of…

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#Biomedical Ethics #Brain-Computer Interface #Clinical Trials #Data Security #Elon Musk #Ethical Technology #FDA Approval #featured #Health Law #Medical Innovation #Neuralink #Neuroscientific Research #Neurotechnology Regulation #Patient Safety #Regulatory Compliance #sciencenews #Technological Advancements

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