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Technology that could help you monitor brain activity

Technology that could monitor brain activityBusiness I

What if you had a way to monitor your brain activity? Sounds cool right? Well, scientists have always had the suspicion that light can create its own conical wakes, like a sonic boom. The problem, however, has been how to capture something that happens so quickly. Naturally, the solution would be to use a very fast camera.

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Washington University in St. Louis has recorded these photonic shockwaves using a “streak camera” that measures both the image and temporal data at 100 billion frames per second. To visualize the cones, the team shot very fast green laser pulses (just 7 picoseconds long) through a tunnel full of dry fog and placed between plates made from aluminum oxide and silicone rubber. Since the laser moved faster in the tunnel than in the plates, it produced a sonic boom-like effect as some of the light dragged behind.

Technology that could help you monitor brain activityEngadget

Technology that could help you monitor brain activity

The approach to the camera is particularly important. Other techniques for capturing very fast events usually require many, many exposures to see anything; the streak camera only needs one. On top of the simplicity, this lets you capture events that won’t repeat in the exact same way, such as the laser pulses.

This could provide new insights into light, of course, but the scientists are ultimately interested in biology. Their system is fast enough to track neurons as they fire, and map brain activity in real time. You could track even the smallest details, which could improve our understandings of both the mind and brain-related diseases.

Source: Engadget .com

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