Science & Tech · Science & Environment · 15 hrs ago
Chinese brain-reading electrodes reach 94% mind-typing accuracy
Chinese researchers developed a more comfortable brain-reading electrode for non-invasive brain-computer interfaces, which read brain activity without surgery.
These systems can use brain signals to let people type by focusing on visual cues.
Conventional electrodes can be uniformly soft or rigid, creating trade-offs in their design.
The new electrodes achieved over 94% accuracy in visual mind-typing tests during a day-long evaluation.
Integrated into a commercial EEG cap, they were tested at rest over 14 hours, and recorded brain activity stably for eight hours while a person carried out daily activities.
The stable recordings during everyday activities may help address barriers to using non-invasive brain-computer interfaces in real-world settings.
Chinese researchers developed gradient electrodes for non-invasive brain-computer interfaces.
The electrodes achieved more than 94 per cent accuracy in visual mind-typing tests during a 14-hour test period.
They were integrated into a commercial electroencephalogram cap and tested while the subject rested.
The electrodes also enabled eight hours of stable brain recordings while a subject carried out daily activities.
The design aims to address barriers to the real-world use of non-invasive brain-computer interfaces.
- Who
- Chinese researchers developed the electrodes. A human subject took part in the tests.
- What
- Gradient electrodes achieved more than 94 per cent accuracy in visual mind-typing tests and enabled stable brain recordings.
- When
- The research was reported on 9 November 2026. The tests included a 14-hour period and eight hours of daily activities.
- Where
- Not stated.
- Why
- The electrodes were designed to address trade-offs in conventional electrodes and barriers to real-world use of non-invasive brain-computer interfaces.
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- Mind-typing accuracy
- More than 94 per cent
- Test period
- 14 hours
- Stable brain recordings
- Eight hours
- Device
- Gradient electrodes integrated into a commercial EEG cap