title: The mechanism of downbeat nystagmus.
mesh_terms: D000328:Adult; D001139:Arnold-Chiari Malformation / Q000150:complications* / Q000503:physiopathology; D001933:Brain Stem / Q000503:physiopathology*; D002531:Cerebellum / Q000503:physiopathology*; D003202:Computers, Analog; D003936:Diagnosis, Computer-Assisted; D004582:Electronics, Medical / Q000295:instrumentation; D005260:Female; D005403:Fixation, Ocular; D006801:Humans; D007259:Infrared Rays; D008875:Middle Aged; D008954:Models, Biological; D009759:Nystagmus, Pathologic / Q000209:etiology / Q000503:physiopathology*; D009802:Oculomotor Nerve / Q000503:physiopathology*; D010775:Photic Stimulation; D010812:Physical Stimulation; D010985:Platybasia / Q000150:complications* / Q000503:physiopathology; D012018:Reflex; D012399:Rotation; D013637:Tape Recording; D014724:Vestibular Function Tests; D014722:Vestibule, Labyrinth / Q000503:physiopathology*