Visual System Ganglion Cells Quiz
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Questions and Answers

What is the role of intrinsically photosensitive ganglion cells in conscious visual perception?

  • Visual acuity and visual field mapping
  • Color vision and depth perception
  • Peripheral vision and motion detection
  • Brightness discrimination and contrast detection (correct)

Where do rod bipolar cells primarily send their information before reaching ganglion cells?

  • Amacrine cells (correct)
  • Horizontal cells
  • Bipolar cells
  • Muller cells

What is the function of the Lateral Geniculate Optic Nerve?

  • Control eye movements
  • Transmit visual information to the brain (correct)
  • Regulate pupil size
  • Maintain color vision

Where do two optic nerves converge before some fibers cross over at the optic chiasm?

<p>Optic chiasm (D)</p> Signup and view all the answers

What is the primary neurotransmitter released by rod bipolar cells at the synapse with amacrine cells?

<p>Glutamate (A)</p> Signup and view all the answers

What is the main reason behind bistratified ganglion cells not having centre-surround receptive fields?

<p>They receive input from s-cones. (D)</p> Signup and view all the answers

Which type of cells are known to carry the s-cone signal?

<p>Bistratified ganglion cells (C)</p> Signup and view all the answers

What is the characteristic feature of rod pathways that helps in increasing night sensitivity?

<p>Convergence and divergence of cell contact (C)</p> Signup and view all the answers

What is the main role of rod bipolar cells in the rod pathways?

<p>Converge rod information from multiple rods (D)</p> Signup and view all the answers

Which type of ganglion cells are responsible for red/green color comparisons?

<p>L/M opponent ganglion cells (B)</p> Signup and view all the answers

What is the main characteristic of bistratified ganglion cells compared to other ganglion cell types?

<p>Receive input from s-cones and L &amp; M cones (D)</p> Signup and view all the answers

What is the function of the ventral stream in visual processing?

<p>Identifying and recognizing objects (D)</p> Signup and view all the answers

What neurological disorder is characterized by the inability to recognize faces?

<p>Prosopagnosia (A)</p> Signup and view all the answers

In which layers of V1 are colored tuned cells found?

<p>Layers 2/3 within the CO blobs (C)</p> Signup and view all the answers

Which pathway is involved in processing the spatial location of objects relative to the viewer?

<p>Dorsal stream (A)</p> Signup and view all the answers

What is the primary function of the dorsal stream in visual processing?

<p>Processing objects' spatial location relative to the viewer (C)</p> Signup and view all the answers

Which disorder results in an individual's inability to accurately reach or point towards objects under visual guidance?

<p>Optical ataxia (B)</p> Signup and view all the answers

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