(Medical Xpress)—In many ways humans are universal machines. We can generate an answer to any question asked of us or move our body into any configuration our joints permit. We can do this near-instantaneously, and with semi-unconscious ease. While it is accepted that our neurons control these functions, we don't know if we can control the activity of individual neurons with this same ease and reliability. If we do possess this ability, then can we control the activity of any and every neuron, or just that of a few kingpins at critical nodes in our networks?
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