In our brain, electricity travels in waves. Information appears on colorized brain scans as pulses, like a wave traveling between two shores. The complexity and coherence of these waves are what neurologists routinely use to determine brain health and mental state. Christof Koch, a chief scientist at the Allen Institute for Brain Science in Seattle, takes it further. He is a fan of a theory developed by neuroscientist Giulio Tononi, which argues that the complexity and integration of these waves are what actually create in us a coherent feeling of reality, one way we sense our own
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