11. Chorea is caused by overactivity of the Neurotransmitter Dopamine.12. S�e specialized in the study of chorea and its association with rheumatic disorders. 13. It often involves hyperkinetic movements, including chorea , dystonia, and athetosis. 14. Chorea tends to affect older stroke victims while dystonia tends to affect younger ones.15. It is useful in the treatment of chorea . 16. Psychological symptoms may precede or accompany this acquired chorea and may be relapsing and remitting. 17. A common feature of the core syndromes is chorea : involuntary dance-like movements. 18. He however noted that, unlike in Rheumatic Chorea , the tendon reflexes were brisk. 19. *I have read the article Chorea . 20. It has been suggested that use of oral contraceptives is an infrequent cause of chorea .