Science
Researchers Want to Restore ‘Good Noise’ in Older Brains – WIRED
Aging people lose variation in brain oxygen levels—a sign of declining cognitive flexibility. A new drug study probes whether…
To eavesdrop on a brain, one of the best tools neuroscientists have is the fMRI scan, which helps map blood flow, and therefore the spikes in oxygen that occur whenever a particular brain region is being used. It reveals a noisy world. Blood oxygen levels…
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