Skip to main content

Brain-computer interfaces have been implanted in humans for the first time

A Brain-Computer Interface (BCI) is now in clinical trials on human patients, the first time this has ever happened in the United States. With all of the buzz around Neuralink, one might expect this breakthrough would come from Elon Musk’s moonshot company. However, the honor goes to a lesser-known brain interface technology leader, Synchron, and its Stentrode device.

While flashy claims of BCIs allowing VR games without a headset and amplifying human intelligence might make headlines, those are distant dreams. Meanwhile, tangible solutions to medical problems that affect patients today are being addressed by Synchron and other BCI innovators.

This graphic shows how Synchron's BCI with Stentrode and brain.io neuroprosthesis works.
Image used with permission by copyright holder

The Stentrode is an electrode mesh array implanted via the jugular vein using well-established neurointerventional techniques. Since this procedure avoids drilling into the skull and open brain surgery, tens of thousands of physicians and clinics around the world already can perform the operation. That means a large number of patients might benefit from this advance if testing proves it to be safe enough for further use.

Combined with Synchron’s neuroprosthesis, brain.io, the Stentrode’s signals are wirelessly transmitted to a computer interface to allow control of a smartphone, tablet, or computer. By enabling easier communication, this technology could bring a major quality-of-life improvement to patients with severe paralysis.

Earlier testing with four patients in Australia has progressed well, with no side effects after 12 months of use. After implantation and training, the patients can, for example, send Whatsapp messages and make online purchases.

Patients in Australia were first to receive Synchron's Brain Computer Interface for BCI testing
Image used with permission by copyright holder

The U.S. Food and Drug Administration (FDA) granted Breakthrough Device designation to Synchron in August of 2020 and on July 6, 2022, the first U.S. patient received a Stentrode. With a series of yes or no signals transmitted via this device, a specially designed app allows text entry and control of a mobile device or computer.

Synchron began work on BCIs in 2012 and the Stentrode has successfully passed through animal testing and is currently in human testing. If everything goes smoothly, the next step will be to demonstrate that this technology significantly improves the patients’ lives. Eventually, this might be a procedure that qualifies for Medicare, which would make it affordable to a large number of patients.

Brain-Computer Interfaces are moving forward at a more rapid pace as each milestone is reached, and once medical use is well-established, consumer uses will follow.

Editors' Recommendations

Alan Truly
Computing Writer
Alan is a Computing Writer living in Nova Scotia, Canada. A tech-enthusiast since his youth, Alan stays current on what is…
Elon Musk plans ‘show and tell’ event on brain-computer technology
Elon Musk stands in front of the Neuralink logo.

Elon Musk, the owner of Neuralink, said the company will be providing an update about its research on October 31. This comes shortly after reports surfaced of Musk's frustration with the slow progress.

Neuralink aims to develop an interface that allows direct connection of a human brain and computer technology. If successful, you might someday expand your processing capabilities and sensory perception through hardware upgrades. That's the futuristic angle that Elon Musk pitched when first introducing this new endeavor.

Read more
This highly anticipated Mac release may have been delayed until 2023
MacBook Pro connected to Apple Studio Display.

Apple is working on a 27-inch mini-LED display with ProMotion technology, according to supply chain analyst Ross Young. But there's a catch -- you won't be able to get it until at least 2023.

The display is a stand-alone monitor and is likely the successor to the expensive Pro Display XDR, or it could be a lower-priced, consumer-friendly display more like the Apple Studio Display. Details are a little murky at this point, but the inclusion of mini-LED and ProMotion means it will be on the higher end of the market.

Read more
Inside the U.K. lab that connects brains to quantum computers
A student has a EEG Cap placed on his head.

In a room at the United Kingdom’s University of Plymouth, a Ph.D. student is sitting at a computer, eyes closed as if he’s meditating. On his head is what looks like a black swimming cap, but is actually an electroencephalogram (EEG) reader that’s sensing the electrical activity passing over his scalp. In front of him, on the monitor, there’s an image of a wireframe globe with two points marked “1” and “0.” In the center of the globe, like a clock with a single hand, is an arrow that oscillates between the two points. As the student changes his expression from one of relaxation to one of wide-eyed agitation, the arrow twitches and moves. Every several seconds, he enters a new digit.

It might not look like much (and right now, it’s still very early days for this work), but it’s nonetheless fascinating stuff. As the student changes his brain patterns from calm to energized and back again, he produces alpha and beta waves that are then used to manipulate simulated qubits – the elemental unit in quantum computing, reflecting the math of quantum physics – using nothing more than the power of thought.

Read more