S-Space College of Medicine/School of Medicine (의과대학/대학원) Dept. of Neurology (신경과학교실) Journal Papers (저널논문_신경과학교실)
Rebound Upbeat Nystagmus After Lateral Gaze in Episodic Ataxia Type 2
- Kim, Hyo-Jung; Kim, Ji-Soo; Choi, Jae-Hwan; Shin, Jin-Hong; Choi, Kwang-Dong; Zee, David S.
- Issue Date
- Cerebellum, Vol.13 No.3, pp. 411-413
- Rebound nystagmus is a transient nystagmus that occurs on resuming the straight-ahead position after prolonged eccentric gaze. Even though rebound nystagmus is commonly associated with gaze-evoked nystagmus (GEN), development of rebound nystagmus in a different plane of gaze has not been described. We report a patient with episodic ataxia type 2 who showed transient upbeat nystagmus on resuming the straight-ahead position after sustained lateral gaze that had induced GEN and downbeat nystagmus. The rebound upbeat nystagmus may be ascribed to a shifting null in the vertical plane as a result of an adaptation to the downbeat nystagmus that developed during lateral gaze.
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