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Volitional motor control involves not only the initiation of desired movements but also the suppression of undesired movements. In this Opinion article, Ebbesen and Brecht argue that motor cortex neurons have a role in both aspects of motor control.
A brain–spine interface that uses decoded neural activity from motor cortex delivered to an electrical stimulation system in the spine was used to restore locomotor function in a monkey whose leg was paralyzed by spinal injury.