Written by leading international experts in all relevant clinical and basic science disciplines, Dystonia 4 is a state-of-the-art review of recent progress in the understanding and treatment of the dystonias. It provides a comprehensive update on the many breakthroughs that have occurred in the five years since the highly acclaimed Dystonia 3 was published. The therapeutics section features detailed discussions on botulinum toxin treatment and current surgical procedures. The book also includes a major section on recent advances in understanding the genetics of the dystonias. Other sections focus on pathophysiology, Oppenheim's dystonia, PET and biochemical studies, and musician's and other focal dystonias.