With jam-packed schedules and a video feed to Earth, astronauts enjoy precious little privacy as it is. Soon, doctors might peek into an astronaut’s last bastion of solitude, thanks to a portable brain scanner that could one day go into orbit.Mission control could use the device to remotely monitor astronauts for signs of brain injury, […]
In lieu of a magnet, the optical scanner sends weak pulses of near-infrared light into the brain, then reads back the reflected wavelengths. That reveals how much oxygen is in the blood, a gauge of brain activity, says Gary Strangman, a…
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