Voluntary nystagmus: new findings and clinical implications.
Horizontal eye position was monitored during a variety of tracking tasks in three normal subjects capable of producing voluntary nystagmus. New findings included ability to superimpose voluntary nystagmus saccades on smooth movements during tracking of a target moving with constant acceleration, brief persistence of voluntary nystagmus, and transient occurrence of voluntary nystagmus, and transient occurrence of voluntary nystagmus-like movements and oscillopsia following an intense period of voluntary nystagmus-like movements and oscillopsia during marked convergence. Clinical implications of these new findings are discussed.
D004594:Electrophysiology / Q000295:instrumentation / Q000379:methods; D005133:Eye Movements; D005260:Female; D005403:Fixation, Ocular; D006801:Humans; D009759:Nystagmus, Pathologic / Q000175:diagnosis / Q000209:etiology* / Q000503:physiopathology; D012438:Saccades; D014836:Volition