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Query: UMLS:C0015672 (fatigue)
 51,768 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Rebound nystagmus represents a disorder of ocular movement in patients with cerebellar lesions. It was reported, however, that it occurred in normal subjects in darkness. Jerk nystagmus, amplitude of 0.5-2 deg and frequency of less than 2Hz, was evoked after prolonged eccentric fixation and fatigue within about 5 to 15 seconds in 7 normal subjects of the experiment. The nystagmus increased depending on the eccentricity and duration of gaze holding. It also depended on the orbital position 10deg left, 0 deg, 10 deg right after eccentric gaze. It is suggested that rebound nystagmus resulted from the leaky neural integrator of the brainstem, and a shift of the null position in the direction of the eccentric gaze. These two components may cause different types of nystagmus by various combinations.
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PMID:[Rebound nystagmus in normal subjects]. 179 71