TY - JOUR T1 - Upbeat nystagmus: clinicoanatomical correlation JF - Journal of Neurology, Neurosurgery & Psychiatry JO - J Neurol Neurosurg Psychiatry SP - 380 LP - 381 DO - 10.1136/jnnp.65.3.380 VL - 65 IS - 3 AU - J C Janssen AU - A J Larner AU - Huw Morris AU - Adolfo M Bronstein AU - Simon F Farmer Y1 - 1998/09/01 UR - http://jnnp.bmj.com/content/65/3/380.abstract N2 - A patient is reported on with isolated upbeating nystagmus with a linear slow phase in whom a solitary lesion, probably inflammatory, was detected radiologically in the dorsal paramedian caudal medulla, encompassing the most caudal of the perihypoglossal nuclei, the nucleus intercalatus of Staderini. The conjunction of a vestibular pattern of nystagmus with this focal lesion runs contrary to a previous suggestion that the nucleus intercalatus may act as a neural integrator for vertical conjugate eye movements. ER -