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I wonder how the somatotopic map relates to proprioceptive awareness. I've kind of implicitly assumed that executive functions like the attentional spotlight rely on connecting to that area to accomplish conscious proprioception, does that book go over how it relates?

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You will have to read the book to find what you are specifically looking for.

The basic idea is that the space around your body to the maximum distance reachable by your arms/legs called "peripersonal space" (https://en.wikipedia.org/wiki/Michael_Graziano#Peripersonal_...) is integrated into a larger body schema maintained (partially) in the somatotopic map and its homunculi. Proprioception is part but not whole of it and how it might be regulated by higher executive functions like focus/attention is AFAIK not clear.

Much appreciated. Super interesting stuff

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