Movement control: how our brain responds to unexpected situations

Scientists have demonstrated that the motor cortex is necessary for the execution of corrective movements in response to unexpected changes of sensory input but not when the same movements are executed spontaneously. Signatures of differential neuronal usage in the cortex accompany these two phenomena. The study has recently been published in Neuron.

In mammals, movement is controlled by circuits spanning throughout the central nervous system from the cortex to the spinal cord. The role of motor cortex in the control of movement is still unclear.

In humans, lesions to motor cortex can result in a loss of voluntary control of movement.

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