π§ Your Brain Starts Making Decisions Way Earlier Than We Ever Thought
A new PNAS study led by University of Illinois researchers found decision-making signals appearing in the brainβs primary sensory cortex β much earlier in the neural hierarchy than scientists believed. By watching mice navigate virtual reality mazes, they discovered that higher brain areas send rapid feedback loops that influence early sensory regions. This overturns the textbook idea that decisions flow strictly forward through specialized βhigherβ brain regions. Does this change how you think about free will?
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