ABSTRACT
In this chapter, various syndromes are discussed that are best considered not mainly as primary disorders of the basal ganglia, but as complications of some of the disorders already dealt with. Most of them are complications arising from prolonged underactivity of dopaminergic mechanisms in the striatum. This may arise in two ways, either as a result of idiopathic Parkinson’s disease, or as a result of prolonged exposure to large doses of dopamine-blocking agents, usually during treatment for psychotic illnesses.
