Lecture 14

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  • Created by: shelby
  • Created on: 21-05-14 10:41
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  • Lecture 14
    • Frogs visual system
      • Visuo-spatial module
      • Visuo-motor module
      • run independently from eye to brain and motor output areas
      • optic tectum (superior colliculus in primates)
      • NO projection to cerebral cortex
    • Primate visual system
      • retain tectal / collicular pathway - operates outside of conscious experience
      • Developed geniculate - striate pathway gives rise to subjective experience
    • Damage to visual system
      • Damage to V1
        • Cortical blindsight
      • Damage to tectal/collicular pathway
        • Neglect
    • Mishkin and Ungerleider  (1982)
      • Dorsal - WHERE stream
        • movement
        • M ganglion cell
          • Magnocellular layer
            • V1
              • V2
                • V3
                  • Untitled
      • Ventral - WHAT stream
        • colour + form
        • P ganglion cell
          • Parvocellular LGN
            • V1
              • V2
                • V4
                  • Temporal lobe
  • NO projection to cerebral cortex
  • Higher visual areas in parietal and temporal lobes
    • Superior colliculus / optic tectum
    • V1

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