This episode takes you inside the brain’s command center for voluntary movement. We break down the motor hierarchy into its three layers: strategy in the association cortex and basal ganglia, tactics in the motor cortex and cerebellum, and execution in the brainstem and spinal cord. Using the example of a baseball pitcher preparing a throw, we trace how the brain evaluates sensory information, selects a movement plan, and sends precise commands that activate motor neurons and generate coordinated action across the body. You’ll hear how ballistic movements unfold too quickly for mid-course feedback, why past sensory experience shapes present decisions, and how the motor system is inseparable from the sensory pathways that guide it. The story builds toward a full picture of how the brain influences the spinal cord to produce voluntary, complex behavior—and what happens when these systems break down.

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