Why do patients with impaired vergence not show "saccadic" vergence?

Holger Rambold*, Thurid Sander, Andreas Sprenger, Christoph Helmchen

*Corresponding author for this work
    2 Citations (Scopus)

    Abstract

    Low gain of the smooth-pursuit system causes correcting saccades that are clinically observed as "saccadic pursuit." In contrast, low gain of the vergence system during tracking does not appear to cause "saccadic tracking." To further evaluate whether this clinical observation is caused by a missing interaction of vergence to step and ramp targets, vergence eye movements to step-ramp, step, and ramp targets in 3-dimensional space were tested. Results show that vergence to a step and a ramp stimulus is additive in the step-ramp paradigm, indicating no interaction of both components.

    Original languageEnglish
    JournalAnnals of the New York Academy of Sciences
    Volume1164
    Issue number1
    Pages (from-to)440-443
    Number of pages4
    ISSN0077-8923
    DOIs
    Publication statusPublished - 21.05.2009

    Research Areas and Centers

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

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