ABSTRACT
Patients suffering from neurologic movement disorders either move too much (hyperkinetic disorders) or too little (hypokinetic disorders). Hyperkinetic disorders are characterized by involuntary movements such as tics, tremor, dystonia, myoclonus, and chorea. Hypokinetic (bradykinetic) disorders clinically result in parkinsonian features . The underlying cause of the majority of movement disorders is accepted as a dysfunction of basal gangliathalamo-conical circuits.
