Week 2: Vision in High Definition Lecture Notes
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Questions and Answers

What type of images are projected onto the surface of the retina?

  • Blurry and upside down images (correct)
  • Black and white images
  • No images are projected
  • Clear and sharp images
  • Why would having the whole retina in high resolution be problematic?

  • Photoreceptors would lose sensitivity
  • The blind spot would take up most of the retina (correct)
  • It would require more energy to process information
  • The optic nerve would be too small to carry all the information
  • Where does a lot of processing take place to reconstruct reality for conscious perception?

  • In the retina itself at the back of the eye (correct)
  • In the brain cortex
  • In the optic nerve
  • In the cornea
  • What would happen if every photoreceptor was connected directly to the brain?

    <p>The blind spot would be huge</p> Signup and view all the answers

    What is a challenge associated with having a high-resolution retina?

    <p>The optic nerve would need to transmit more information</p> Signup and view all the answers

    What is the purpose of the compression mechanism in the retina?

    <p>To avoid transmitting unnecessary information to the brain.</p> Signup and view all the answers

    How does the brain create visual illusions like simultaneous contrast?

    <p>By compressing spatial information.</p> Signup and view all the answers

    Why would it be inefficient for all red photoreceptors in the retina to be active when looking at a single block of red color?

    <p>To avoid overwhelming the brain with information.</p> Signup and view all the answers

    What happens when green photoreceptors become active in the retina while looking at a green object?

    <p>Red photoreceptors also become active simultaneously.</p> Signup and view all the answers

    What does the text suggest about the brain's energy consumption in processing visual information?

    <p>It consumes significantly less power compared to the rest of the body.</p> Signup and view all the answers

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