Why do we have traveling brain waves?

  • Highlights
  • Salk neuroscientist who discovered traveling brain waves in the awake visual system in 2020 now asks why they exist
  • New review article suggests neural traveling waves are a computational engine that allows us to build internal representations of the outside world

LA JOLLA—Your brain has something surprising in common with the ocean: waves! Electrical activity washes over the brain’s surface, creating what are called traveling brain waves or neural traveling waves. These waves cause real differences in your behavior and attention, and—again, like ocean waves—can have variable causes, from intrinsic to environmental inputs.

A new review article written by Salk Institute neuroscientists synthesizes the physiological and computational information about these neural traveling waves and draws a new conclusion: Neural traveling waves are a computational engine in the visual cortex. These waves allow the visual cortex (and likely other areas of the brain) to…
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