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.”
Can you take a moment and imagine some possibilities of taking input directly from someone’s mind and applying it without needing to use your body? I know moving a mouse doesn’t seem impressive, but it demonstrates success at a technological concept that still seems impossible. I can’t speak for the ethics because I don’t know how voluntary the subjects are for the research, but this is very exciting for me, because it will inevitably become more sophisticated.
Cool, when you can upload your thoughts somewhere we’ll be having a different conversation about its risks and uses. But what’s happening right now is that they did brain surgery on a man to let him move a computer mouse.
Do you think we’ll get to that advanced level of use without experiments? And do you think that this is wrong despite consent to the procedure?
I don’t accept that disabled people must be sacrificed at the altar of Progress, and I think the entire process for how they recruit patients and explain the capabilities and risks of the implant deserves extreme scrutiny. There’s a reason doctors have to get hours of education in ethics to be considered competent, it’s a lot more complicated than “just do whatever if it can technically work for a bit.”
Your criticisms are reasonable ones.