Visual Processing (Kartei)

23 Karteikarten

• 1
  The separation of stimuli at the chiasm

  - Stimuli from the inner (nasal) half of the visual field ...
• 2
  The lateral geniculate body (LGN, CGL)

  - Subregion of the thalamus in the diencephalon (nearly ...
• 3
  Layers of the lateral geniculate body (LGN, CGL)

  - Six parallel layers which receive highly ordered input ...
• 4
  LGN: Top four layers (parvocellular layers)

  - Contain neurons with smaller somata - Are connected with ...
• 5
  LGN: Bottom two layers: Magnocellular layers

  - Contain neurons with larger somata - Are connected with ...
• 6
  LGN layers of the nasal contralateral branch of the visual ...

  Terminates in layers 1, 4 and 6
• 7
  Temporal ipsilateral branch of the visual pathway

  Termiantes in layers 2, 3 and 5
• 8
  Thalamo-cortical gating

  - Filtering of sensory signals by inhibitory GABAergic ...
• 9
  Thalamo-cortical gating: Highly attentive state

  Relay neurons exhibit regular spiking activity (tonic ...
• 10
  Thalamo-cortical gating: Sleeping mode - neurochemistry

  Rhythmical bursting # Low-threshold voltage-gated calcium ...
• 11
  The primary visual cortex: Connection of layers

  - Layer 1: - Layer 2: Receives from 4, sends to cortex - ...
• 12
  Input layer of the primary visual cortex

  Layer 4
• 13
  Output layers of the primary visual cortex

  Layers 2 and 3
• 14
  Two types of cells in the visual cortex

  - Simple cells: The cellular basis for orientation ...
• 15
  Visual cortex: Simple cells

  - Convergent connection between stellate cells in layer 4 ...
• 16
  Visual cortex: Complex cells

  - The next level of abstraction in visual processing - ...
• 17
  Visual cortex: Blobs (parvocellular path)

  - Color-sensitive target neurons grouped together in blobs ...
• 18
  Visual cortex: Interblobs (magnocellular path)

  Cortical area V5 is specialized for motion detection, ...
• 19
  Visual cortex: Projections to higher visual areas

  - The parietal "where" pathway (upper) - The temporal ...
• 20
  Visual cortex: The parietal "where" pathway (upper)

  - Motion detection, stereoptic vision, connections with the ...
• 21
  Visual cortex: The temporal "what" pathway (side)

  - Object recognition and visual memory - Visual recognition ...
• 22
  Hemispheric specialization: Left hemisphere

  Specialized for language analysis, writing and reading, ...
• 23
  Hemispheric specialization: Right hemisphere

  Specialized for spatial construction, pattern analysis, ...