Maybe there are dumb questions…

I’ve been wondering about the following: When somebody says “think about the color blue” you cannot help but have an image of blue (or something blue) pop into your visual cortex no matter how hard you try otherwise. Moreover, the thought apparently triggers rather similar neural patterns to those excited if you were actually seeing it. But if somebody says “think about raising your right arm” your arm does not shoot up. If motion is caused by the brain, initiated by thought, and my thoughts are not entirely in my control, why is it that I am nonetheless in total control of my physical movement? There must be some pretty interesting machinery to insulate our normally chaotic thoughts from our motor control system so that we’re not constantly smacking people whenever our subconscious mind wants to.

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