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Lisa Feldman Barrett, "Seven and a Half Lessons about the Brain" (Mariner Books, 2020)

New Books in Science, Technology, and Society

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The Relaxation of Selection Pressures in the Brain

In the brain, action preparation comes first based on heavy and learning. And what happens is your brain is constructing a set of or population of possible futures. When you go to sleep, some of those selection factors are relaxed. So I think, well, maybe what's happening with psilocybin and ketamine and so on is that those constraints are relaxed.

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