Focal dystonia

Focal dystonia is a neurological condition that affects a muscle or group of muscles in a specific part of the body, causing involuntary muscular contractions and abnormal postures. For example, in focal hand dystonia, the fingers either curl into the palm or extend outward without control. In musicians, the condition is referred to as musician's focal dystonia, or simply, musician's dystonia. In sports, it is commonly referred to as the yips.