Type : Phenotype or locus, molecular basis unknown;
Included titles and symbols : Musician's dystonia;
Description : Focal dystonia, the most common form of dystonia, is often task-specific and referred
to as FTSD. Specific learned motor tasks, such as writing or playing a musical instrument,
can trigger muscle spasms and interfere with performance while other actions are unaffected.
FTSD has a frequency of 1 in 3,400 in the general population but increases to 1 in
200 among musicians (Pullman and Hristova, 2005).;