Disorders of the Extrapyramidal System
Refers to weakness of the muscles, decreased range of motion, decreased coordination.
Multiple forms of dysarthria exist. The type is determined where the lesion is in the CNS. If UMN, LMH, or cerebellum all cause a different type. This means the presence of a dysarthria doesn't necessarily mean damage to the extrapyramidal system.
Impact one's speech production by affecting articulators, respiration, and phonation.
Some dysarthria associated with the extrapyramidal system would include ataxic dysarthria: presents when there is damage to the cerebellar pathways.
Might have hypokinetic dysarthria--damage to the basal ganglia associated with Parkinson's Disease.
Hyperkinetic dysarthria is damage to the basal ganglia in a different way--associated with Huntington's Disease (Chorea or Athetosis)