Posterior vermal split syndrome

Amy J. Bastian, Jonathan W. Mink, Bruce A. Kaufman, W. Thomas Thach

Research output: Contribution to journalArticle


We have studied a battery of movements in 5 children (age, 6-15 years) after transection of the posterior inferior cerebellar vermis. In each case, the surgery destroyed the midline vermis only (ranging from lobules VI-X). Tandem gait was badly impaired in all subjects. No subjects had impairments of kicking, reaching, pinching, or speech. Regular gait, standing, and hopping on one leg were relatively unimpaired. Cutting the parallel fibers that cross the midline may be the critical variable causing incoordination in tandem gait.

Original languageEnglish (US)
Pages (from-to)601-610
Number of pages10
JournalAnnals of neurology
Issue number4
StatePublished - Oct 1998
Externally publishedYes

ASJC Scopus subject areas

  • Neurology
  • Clinical Neurology

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