Contralesionally beating torsional nystagmus in a unilateral rostral midbrain lesion

Christoph Helmchen*, Stefan Glasauer, Klaus Bartl, Ulrich Büttner

*Corresponding author for this work
34 Citations (Scopus)


The rostral interstitial nucleus of the medial longitudinal fasciculus (riMLF) and the interstitial nucleus of Cajal (iC) are involved in the generation of vertical and torsional saccades and gaze holding. Midbrain lesions involving either riMLF or iC produce a tonic torsional ocular deviation to the contralesional side. Lesions of the iC are associated with an ipsilesional torsional nystagmus (TN). For the first time, we describe a patient with a unilateral midbrain lesion showing a contralesionally beating torsional nystagmus. This nystagmus was probably caused by a lesion involving the riMLF.

Original languageEnglish
Issue number2
Pages (from-to)482-486
Number of pages5
Publication statusPublished - 01.01.1996

Research Areas and Centers

  • Academic Focus: Center for Brain, Behavior and Metabolism (CBBM)


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