These connections are part of the diffuse extrapyramidal pathway , an important motor pathway in the brain. The basal ganglia are essential for the execution of normal volitional movements. Basal ganglia appear to facilitate the execution of purposeful movement patterns and inhibit unwanted movements. Studies of lesions involving basal ganglia show that the structure is important for initiation and control of movements. Lesions of basal ganglia and the associated extrapyramidal pathway lead to dysarthria.
Dysarthria is a general term for disorders of articulation and prosody due to neurological damage.
These structures form a ring or a border around diencephalon. There is no general agreement on the exact composition of the limbic lobe. Limbic system is found on the medial surface of each hemisphere. Cingulate gyrus surrounds the corpus callosum on its upper edge in the frontal and parietal lobes. Disorders of cingulate gyrus are associated with anxiety and obsessive-compulsive behavior.