The first Neuralink implant in a human malfunctioned after several threads recording neural activity retracted from the brain, the Elon Musk-owned startup revealed Wednesday.
The threads retracted in the weeks following the surgery in late January that placed the Neuralink hardware in 29-year-old Noland Arbaugh’s brain, the company said in a blog post.
This reduced the number of effective electrodes and the ability of Arbaugh, a quadriplegic, to control a computer cursor with his brain.
“In response to this change, we modified the recording algorithm to be more sensitive to neural population signals, improved the techniques to translate these signals into cursor movements, and enhanced the user interface,” Neuralink said in the blog post.
The company said the adjustments resulted in a “rapid and sustained improvement” in bits-per-second, a measure of speed and accuracy of cursor control, surpassing Arbaugh’s initial performance.
While the problem doesn’t appear to pose a risk to Arbaugh’s safety, Neuralink reportedly floated the idea of removing his implant, according to The Wall Street Journal.
The company has also told the Food and Drug Administration that it believes it has a solution for the issue that occurred with Arbaugh’s implant, the Journal reported.
The implant was placed just more than 100 days ago. In the blog post, the company touted Arbaugh’s ability to play online computer games, browse the internet, livestream and use other applications “all by controlling a cursor with his mind.”
This isn’t something new to nueralink. Brain-machine interfaces have existed for quite some time. Neuralink is one of a number of companies that are exploring directly implanting these devices rather than using an externally attached (hence, easily removable) interface, but the core thesis of “Brain control computer” isn’t any kind of grand leap forward. That’s just Musk’s marketing.
I saw a dude play chess with his mind where otherwise he couldn’t. I’ve never even heard of tech like this, so it’s 100% new to me lol
Is it because you are unfamiliar with adaptive tech? Eye tracking devices allowing quadriplegic people to interact with computers by looking at them and blinking have been around since at least the mid 00s. Like a decade ago the “mind reading” external tech got cheap enough for simplified toys to be made with it. Implanting it directly into the body is a lot of risk for very little benefit.
I just think it’s cool, but fuck me right?
If you think it’s cool I would hope you think it’s even cooler than you can do this without surgery and that there are literal cheap ass toys you can buy to play with yourself?
You’re presupposing that surgical implants can’t be more responsive, intuitive, speedy, or sophisticated than an external device. The eye trackers are very useful but objectively pretty limited. Non-invasive EEG is weak and distorted because there is skull and more brain in the way, so “resolution” is limited.
If better outcomes are possible by putting electrodes as close to the signal source as can be, why not explore that option?
It feels ridiculous that I even need to say this, but you don’t do it because the risk:benefit ratio is lopsided as hell.
Risks: die from sepsis, have your body reject the implant, the parent company goes out of business and your implant no longer functions (this has happened with several startups), etc
Benefit: move mouse and click faster
It’s experimental tech, I wouldn’t want to be the Guinea pig either.
However, if I was quadriplegic and could only use the somewhat limited external tech, and a significant portion of my life was interacting with a computer. Fuck yeah the risk is worth a performance boost. Especially considering this is going to be a lot safer and more powerful when it hits the mass market
There is no such thing as an implant or surgery with no risk of sepsis or rejection. The risk may be low in young, healthy patients (ie, not people who are quadriplegic because that leads to many other health concerns with surgeries), but it’s never zero.
If you’re cool with risking that, okay, that’s your body. Personally I want to live.