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MicroLED display monitors brain activity in real time for more precise surgery

Brain UC San Diego microleds

Each LED in the device mirrors the activity of a few thousand neurons. In a series of proof-of-concept experiments, the device demonstrated it can track and display neural activity in the brain corresponding to different areas of the body. In this case, the LEDs developed by the team light up red in the areas that need to be removed by the surgeon. Surrounding areas that control critical functions and should be avoided show up in green. Image: University of California San Diego

The Gallium nitride-based inorganic micro-LEDs can maintain clear visibility under surgical lights. At just a few tens of microns thick, the display captures brain activity at 20,000 samples per second across thousands of channels and visualises it at a video rate of 40Hz

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