[Alternating nystagmus].
D002150:Caloric Tests; D004584:Electronystagmography; D006801:Humans; D008875:Middle Aged; D009759:Nystagmus, Pathologic / Q000175:diagnosis / Q000503:physiopathology*; D011187:Posture; D014724:Vestibular Function Tests
Nystagmus alternant.