Race for ultrasound brain technology intensifies in China

When you hear “brain-computer interface,” you probably imagine surgery, wires, and a chip in your head. Now imagine something calmer. Without implant. No incision. Only sound waves directed to the brain.

That’s the approach behind a new wave of ultrasound brain-computer interface companies in China. One of the newest is Gestala, founded in Chengdu and with offices in Shanghai and Hong Kong. The company says it is developing technology that can stimulate and eventually study brain activity using focused ultrasound.

Yes, the same basic technology is used in medical imaging. But this time it focuses on neural circuits.

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What is an ultrasound brain-computer interface?

Most brain-computer interface systems are based on electrodes that detect electrical signals from neurons. Neuralink is the most visible example. Places small threads inside the brain to record activity. Ultrasound works differently.

Instead of measuring electrical signals directly, it uses high-frequency sound waves. Depending on the intensity and focus, those waves can:

• Create images of internal tissue.
• Destroy abnormal tissue such as tumors.
• Modulates neuronal activity without open surgery.

Focused ultrasound treatments are already approved for Parkinson’s disease, uterine fibroids, and certain tumors. That clinical history provides companies like Gestala with a foundation on which to build. However, studying or interpreting brain signals with ultrasound is much more complex than delivering targeted stimulation.

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How Gestala plans to treat chronic pain with focused ultrasound

Gestala’s first product is focused on chronic pain. The company plans to target the anterior cingulate cortex, a brain region linked to the emotional experience of pain. Early pilot studies suggest that stimulating this area can reduce pain intensity for up to a week in some patients. The first generation device will be a stationary system used in clinics. Patients would visit a hospital for treatment sessions. Going forward, the company plans to develop a wearable helmet designed for supervised use at home. Over time, Gestala says it wants to expand into depression, other mental health conditions, stroke rehabilitation, Alzheimer’s disease and sleep disorders. This is an ambitious roadmap. Each condition involves different brain networks and clinical obstacles.

Can ultrasound read brain activity without implants?

Like other brain technology startups, Gestala is also exploring whether ultrasound could help interpret brain activity. The concept of long term is simple in theory. A device could detect patterns related to chronic pain or depression and then, in response, deliver stimulation to specific regions.

Unlike traditional brain implants, which capture electrical signals from limited areas, an ultrasound-based system may have the potential to access broader regions of the brain. That possibility is one reason researchers are paying attention. Still, translating that concept into reliable data is a major engineering challenge.

The global race to build non-invasive brain interfaces

China is not the only country exploring ultrasound brain-computer interface systems. Earlier this month, OpenAI announced a major investment in Merge Labs, a startup co-founded by Sam Altman along with researchers linked to Forest Neurotech.

Merge Labs’ public materials mention restoring lost skills, supporting healthier brain states, and deepening the human connection with advanced AI. That language signals long-term ambitions. However, experts warn that real-world applications are still years away.

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The technical limits of ultrasound brain interfaces.

Ultrasound faces technical limits. First, the skull weakens and distorts sound waves. That makes it harder to get accurate signals. In research settings, detailed readings of neural activity have required special implants that allow ultrasound to pass more clearly than bone.

Second, ultrasound measures changes in blood flow. Blood flow changes more slowly than the electrical discharge in neurons. That delay can limit applications that require fast and detailed signal decoding, such as real-time speech translation. In short, stimulation is a challenge. Accurate reading is a whole other level.

What does this mean to you?

At this time, this technology is experimental. You are not willing to buy a brain helmet at your local electronics store. Still, direction matters. If non-invasive ultrasound devices can reduce chronic pain or support mental health treatment, more patients could consider the therapy without facing brain surgery.

At the same time, devices that analyze brain states introduce new privacy issues. Brain-related data is deeply personal. Regulators, hospitals and companies will need clear rules about how that data is stored, shared and protected. Finally, the link between AI companies and brain interface startups shows how closely digital intelligence and neuroscience are becoming intertwined. That connection could reshape medicine, wellness, and even the way we interact with technology.

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Kurt’s Key Takeaways

Brain-computer interfaces used to seem distant and experimental. They are now a serious focus of global research and investment. China’s push to develop an ultrasound-based brain-computer interface adds momentum to a field already formed by companies like Neuralink and OpenAI-backed startups. Progress is constant but measured. The potential is significant. The technical obstacles are real. What happens next will depend on whether researchers can turn promising lab results into safe, reliable treatments that people can actually use.

If sound waves could one day interpret your mental state, who should decide how that information is used? Let us know by writing to us at Cyberguy.com.

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