tokens: To date gene loci have been identified in at least six autosomal dominant forms , i . e . , in idiopathic torsion dystonia ( 9q34 ) , focal dystonia ( 18p ) , adult - onset idiopathic torsion dystonia of mixed type ( 8p21 - q22 ) , dopa - responsive dystonia ( 14q22 . 1 - q22 . 2 ) , and paroxysmal dystonic choreoathetosis ( 2q25 - q33 ; 1p21 - p13 . 3 ) .