Brain-Computer Interface (BCI) Advances

Attorney Rich Newsome

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Attorney Rich Newsome

Catastrophic Injury & Medical Malpractice Attorney

25+ years experience

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Brain-Computer Interface (BCI) Advances

Locked-in syndrome can make communication feel impossible. The body stays still, but the mind stays fully aware, often with no clear way to reach the outside world. Brain-computer interface technology offers a new path forward. By reading brain activity directly, these systems let a person bypass damaged muscles entirely, turning thought into action, and offering fresh hope for regaining a voice.

What a BCI Is and How It Works

A brain-computer interface, or BCI, lets a person control something using only brain activity. Normally, the brain decides on an action, then sends that decision through nerves and muscles to carry it out. Locked-in syndrome breaks that chain: the brain still forms the intention, but the signal never reaches the muscles. A BCI closes that gap by skipping the body entirely, reading brain activity directly and acting on it.

Three Working Parts

Every BCI relies on the same basic setup. First, a sensing device, often a headset or cap, detects activity in the brain. Second, a computer processes that activity and identifies what the person intends to do. Third, a connected device carries out the command, whether that’s moving a cursor or selecting a letter on a screen.

Feedback Matters

A BCI also depends on feedback. The user needs to see that their intended action actually happened, like a letter appearing correctly on screen. This confirmation helps the brain learn which patterns of activity produce the result it wants, and performance improves with practice.

Two Main Approaches: Invasive vs. Non-Invasive

BCIs generally fall into two categories, based on how they pick up brain activity.

  • Non-invasive BCIs don’t require surgery. Instead, a person wears a cap, headset, or headband fitted with sensors that rest against the scalp. These sensors detect electrical activity in the brain from the outside, a method called electroencephalography, or EEG. Because the signal has to pass through skin, skull, and hair before it reaches the sensor, it comes through weaker and less detailed. Still, this approach is safe, painless, and far more accessible, since it skips the risks that come with surgery entirely.
  • Invasive BCIs take the opposite approach. A surgeon implants electrodes directly on or inside the brain, allowing the system to pick up much stronger, more detailed signals. Because the sensors sit closer to the source, invasive systems can often achieve more precise, complex control than non-invasive ones. That precision comes with tradeoffs, though: surgery carries real risk, and the long-term effects of living with an implanted device are still being studied.

There’s also a middle-ground option called electrocorticography, or ECoG. This method places electrodes on the surface of the brain rather than deep inside it, aiming to capture stronger signals than EEG while reducing some of the risk that comes with deeper implants.

Choosing between these approaches often comes down to weighing precision against risk, and each is being studied and refined for different needs.

Neural Implants

Neural implants are the most advanced form of invasive BCI, and they’ve produced some of the field’s most striking results. Surgeons place these devices directly on or inside the brain, where they record extremely detailed neural activity, activity that non-invasive systems simply can’t pick up from outside the scalp.

Research shows what’s possible with this level of precision. In a study published in Nature, a person with paralysis used an implanted system to control their own arm with real skill and coordination.

EEG-Based Communication

EEG-based BCIs are a very common form of non-invasive brain-computer interface. As we mentioned above, instead of surgery, a person wears a cap or headset fitted with sensors that rest against the scalp. These sensors pick up the brain’s electrical activity from outside the head, a method called electroencephalography, or EEG.

This approach works because the brain is constantly generating electrical signals, even when a person can’t move or speak. EEG sensors detect patterns in that activity, and specialized software interprets those patterns as commands. A person might focus on a flashing letter on a screen, for example, and the software picks up the brain’s response to that specific flash to figure out which letter they’re choosing.

People have used EEG-based systems to answer yes/no questions, spell out words letter by letter, and select items on a screen using focused attention alone.

Progress is also being made on the hardware itself. Newer research has produced tiny sensors that fit between hair follicles, allowing continuous, hands-free use for up to 12 hours, a step toward making EEG-based BCIs part of daily life rather than something confined to a lab.

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Clinical Trials

For families exploring brain-computer interface technology, clinical trials are often the starting point. A clinical trial is a carefully structured, government-overseen study that tests whether a new device is safe and whether it actually works the way researchers hope.

Johns Hopkins INTENT Trial

Johns Hopkins offers a real, current example of this kind of research. Its Department of Neurology is running a study called INTENT, short for Interfacing With NeuroTechnology to Expand Neural Throughput. The trial is testing an implanted BCI designed to help restore communication for people with severe motor impairment. It’s built specifically for people ages 18 to 80 with significant motor loss caused by spinal cord injury, brainstem stroke, or ALS. Brainstem stroke is the most common cause of locked-in syndrome, making this study directly relevant for many families.

Participating in INTENT is a serious commitment. It involves surgery to place electrodes on the surface of the brain, followed by 12 months of training and testing sessions, three to five days a week.

Johns Hopkins CortiCom

This isn’t the first study of its kind at Johns Hopkins. An earlier trial, called CortiCom, tested a similar implanted system in a participant with ALS who had lost the ability to speak.

Families interested in learning more about opportunities like these can reach out directly to research teams or search official databases, such as ClinicalTrials.gov, to confirm a trial’s legitimacy before deciding to get involved.

Emerging BCIs

While implants and EEG headsets represent where BCI technology stands today, researchers are already working on what comes next, and some of that work is changing how these systems are built from the ground up.

One major shift is happening in hardware. Traditional EEG systems rely on bulky caps and gel-based electrodes that can be uncomfortable and impractical for everyday use. As noted above, researchers at Georgia Tech have developed a new kind of sensor that fits into the tiny spaces between hair follicles, sitting just under the skin. This micro-sized sensor captures high-quality brain signals without the bulk of a traditional headset.

At the same time, researchers have been tackling a different problem entirely: why some people struggle to learn a BCI no matter how much they practice. A 2026 study from Yale found that traditional BCI training could take up to 10 long sessions, and about a third of users never gained reliable control at all. The researchers discovered that the issue often wasn’t effort, but fit. When a BCI was built around a person’s natural patterns of brain activity, rather than asking the brain to learn something unfamiliar, people learned to use it in under an hour.

Together, these two directions point to where BCI research is heading: devices that are easier to wear, and systems that are smarter about working with the brain instead of against it. For people with locked-in syndrome, that combination could eventually mean faster training, more comfortable daily use, and BCIs that fit more naturally into everyday life.

BCIs Are Expensive, But You May Have Options for Covering Costs

Brain-computer interface technology remains costly, and covering it can feel overwhelming for families already carrying so much. Our team can help you explore your options. In some cases, holding a medical provider liable for a missed diagnosis or delayed treatment may open a path toward coverage. Let us handle that process for you, so you can focus on what matters most: your family.

Get help from a locked-in syndrome lawyer at Newsome Law when you are ready.

Read more about Rich Newsome
Rich Newsome

Rich Newsome

Catastrophic Injury Locked-In Syndrome Attorney

Rich Newsome is a dedicated attorney specializing in catastrophic injury and medical malpractice cases. With over 25 years of experience, she is committed to advocating for victims and their families, ensuring they receive the justice and compensation they deserve.

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