Characteristic of tic	Differential diagnosis
Abrupt	Chorea
	Myoclonus
	Paroxysmal dyskinesia
	Seizure
Improves with concentration	Akathisia
Improves with concentration	Psychogenic
Increases with stress	Most hyperkinesias
Multifocal/migratory	Chorea
	Myoclonus
	Paroxysmal dyskinesia
Patient unaware	Chorea
Patient unaware	Seizure
Premonitory sensation (or urge)	Akathisia
Premonitory sensation (or urge)	Dystonia
Present during sleep	Myoclonus (segmental)
	Painful legs/moving toes
	Periodic limb movements of sleep
	Seizure
Suppressible	Chorea
	Restless legs syndrome
	Stereotypy