Motion perception deficits from midline cerebellar lesions in human

Research output: Contribution to journalArticle

75 Scopus citations


Although visual motion processing is commonly thought to be mediated solely by visual cortical areas, this human lesion study suggests that the cerebellum also has a role. We found motion direction discrimination deficits in a group of patients with acute midline cerebellar lesions. Unlike normals and patients with hemispheric cerebellar lesions, these patients with midline lesions were unable to discern a global motion vector in a local stochastic motion display. This resembles the perceptual defect reported following cortical area MT lesions in primates. This motion perception deficit may result from damage to a cerebellar mechanism involved in perceptual stabilization. Disruption of this comparator mechanism is sufficient to produce a severe motion perception deficit even though cortical visual processing mechanisms are still intact.

Original languageEnglish (US)
Pages (from-to)723-731
Number of pages9
JournalVision research
Issue number5
StatePublished - Mar 1995


  • Brain lesions
  • Cerebellum
  • Cortical circuits
  • Motion perception
  • Subcortical circuits

ASJC Scopus subject areas

  • Ophthalmology
  • Sensory Systems

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