NYSTAGMUS IN ACUTE LESIONS OF THE CENTRAL VESTIBULAR SYSTEM.

Type	Features	Lesion
Downbeat	Increasing amplitude with downgaze	Cervicomedullary junction
Upbeat	Increasing amplitude with upgaze	Paramedian medulla oblongata or brainstem
Rebound	With continuous lateral position, reversal or disappearance	Cerebellum
Dissociated	Disconjugate	Brainstem
Bobbing	Downward jerk with slow return to midposition	Pons