Fixation Suppression
Ask the patient to fixate on his or her own index finger held out in front at arm's length. Unlock the examination chair and rotate the patient up to 2 Hz while the patient stares at the finger moving with them. The examiner observes for a decrease in the visualvestibular nystagmus that is evoked during rotation without ocular fixation.
(+) Test: Almost always central - lesion at cerebellar flocculus
