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Related Experiment Videos

Disorders of higher visual function and hemi-spatial neglect.

T L Hodgson1, C Kennard

  • 1Division of Neuroscience and Psychological Medicine, Imperial College School of Medicine, London, UK. t.hodgson@ic.ac.uk

Current Opinion in Neurology
|March 17, 2000
PubMed
Summary
This summary is machine-generated.

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Damage to the extrastriate cortex causes vision disorders, highlighting two visual processing streams. The inferior parietal region may connect visual and motor pathways, as suggested by hemi-spatial neglect studies.

Area of Science:

  • Neuroscience
  • Visual processing
  • Cerebral cortex

Background:

  • Extrastriate cortex lesions cause visual disorders.
  • Two main visual processing streams exist: ventral (visual perception) and dorsal (visuomotor control).

Purpose of the Study:

  • To investigate the role of the inferior parietal region in visual and motor processing.
  • To explore the functional specialization of the ventral and dorsal visual streams.

Main Methods:

  • Review of current theories on visual processing streams.
  • Analysis of recent investigations into hemi-spatial neglect.

Main Results:

  • Visual disorders arise from extrastriate cortex damage.
  • The inferior parietal region is implicated at the visual-motor pathway junction.

Related Experiment Videos

Conclusions:

  • The ventral and dorsal streams specialize in visual perception and visuomotor control, respectively.
  • The inferior parietal region may integrate visual and motor information.