21. Generalized dystonia has also been treated with such muscle relaxants as the benzodiazepines. 22. Focal dystonia is mentioned as another possibility for the real cause of yips. 23. Therapy for dystonia can involve prosthetics which provide passive simulation of the stimulation. 24. She is also the chairwoman of the Dystonia Society. 25. It is characterized by dystonia , and abnormal and sustained involuntary muscle contraction. 26. It often involves hyperkinetic movements, including chorea, dystonia , and athetosis. 27. ---- Ormandibular dystonia , which causes clenching of the jaw muscles. 28. A spasmodic muscle contraction may be caused by many medical conditions, including dystonia . 29. Chewing motions and unusual tongue movements may also occur with this type of dystonia . 30. Chorea tends to affect older stroke victims while dystonia tends to affect younger ones.
