A journey through the complex network of regions controlling the human motor system, beginning with the spinal cord and its central pattern generators, and working up through the primary motor cortex, the premotor cortex, the posterior parietal cortex, the cerebellum, and the basal ganglia. I discuss the computational roles of each part of the motor control hierarchy, focusing on what functions are performed and what information is represented in each unique brain region. Overall I emphasise the complex interaction between top-down and bottom-up feedback in controlling muscle movement and executing complex motor tasks. Recommended pre-listening is Episode 132: The Muscular System, and Episode 38: Neurons and Synapses.

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