Motion perception deficits from midline cerebellar lesions in human

Research output: Contribution to journalArticle

72 Citations (Scopus)

Abstract

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
Volume35
Issue number5
DOIs
StatePublished - Jan 1 1995
Externally publishedYes

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Motion Perception
Cerebellum
Primates

Keywords

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

ASJC Scopus subject areas

  • Ophthalmology
  • Sensory Systems

Cite this

Motion perception deficits from midline cerebellar lesions in human. / Nawrot, Mark; Rizzo, Matthew.

In: Vision Research, Vol. 35, No. 5, 01.01.1995, p. 723-731.

Research output: Contribution to journalArticle

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