Episode Summary

Harry's guest this week is Ryan Field, chief technology officer at a Los Angeles startup called Kernel. The company is developing a bicycle-helmet-shaped device that measures neural activity in the brain in real time. The first version, called Kernel Flow, contains more than 50 low-power lasers that beam light through the scalp and skull into the outermost layers of the brain. Hundreds of detectors built in the helmet collect the light that’s scattered back to measure oxygen levels in the brain’s blood supply, which is an indirect measure of neural activity. Field says the company doesn't have specific applications for the technology in mind, but he's betting that researchers and developers will come up with multiple ways to use Kernel Flow to help consumers gauge their state of mind or visualize how their brains are responding to different activities and therapies.


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