A parasomnia characterized by paroxysmal episodes of choreoathetotic, ballistic, dystonic movements, and semipurposeful activity. The episodes occur during non-rapid eye movement sleep and typically recur several times per night. (Neurology 1992 Jul;42(7 Suppl 6):61-67; Adams et al., Principles of Neurology, 6th ed, p391)
Also Known As:
Dystonia, Hypnogenic Paroxysmal; Dystonia, Nocturnal Paroxysmal; Dystonia, Sleep-Related; Dystonias, Hypnogenic Paroxysmal; Dystonias, Nocturnal Paroxysmal; Dystonias, Sleep-Related; Hypnogenic Paroxysmal Dystonias; Nocturnal Paroxysmal Dystonias; Paroxysmal Dystonia, Hypnogenic; Paroxysmal Dystonia, Nocturnal; Paroxysmal Dystonias, Hypnogenic; Paroxysmal Dystonias, Nocturnal; Sleep Related Dystonia; Sleep-Related Dystonias; Dystonia, Nocturnal, Paroxysmal; Hypnogenic Paroxysmal Dystonia; Sleep-Related Dystonia