5. Motor control

Motor control is regulated by sensory information and internal planning. There is teamwork between sensory cortical areas, basal nuclei and the cerebellum. In the case of basal ganglia dysfunction, motion is restricted, and in the case of cerebellar problems it is too extensive. This can be seen by observing body movements: especially gait and ocular movement and speech may be dysarthric. In the case of unilateral disturbances, the contralateral basal ganglia or the ipsilateral cerebellum may be involved. It is fairly easy to identify the pyramidal tract, the basal ganglia, the cerebellum or deep sensation as the cause of a movement disorder. Non-organic problems frequently present as a disorder of movement.