Human-Computer Interaction Basics
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Questions and Answers

What is the central character in HCI?

  • The user (correct)
  • The software
  • The computer
  • The interface
  • What is the function of rods in the retina?

  • Responsible for early detection of pattern
  • Sensitive to light (correct)
  • Responsible for early detection of movement
  • Allow color vision
  • What is the purpose of X-cells in the retina?

  • Concentrated in the peripheral vision
  • Responsible for early detection of pattern (correct)
  • Responsible for early detection of movement
  • Allow color vision
  • Why do we have difficulty recognizing patterns in peripheral vision?

    <p>Due to the distribution of X-cells in the retina</p> Signup and view all the answers

    What is the implication of the design of a static error message at the bottom of the screen?

    <p>It is less noticeable due to the way our vision works</p> Signup and view all the answers

    What determines our perception of size?

    <p>Visual angle</p> Signup and view all the answers

    What is the effect of increased luminance on visual acuity?

    <p>It increases</p> Signup and view all the answers

    What is the approximate number of colors that can be perceived by varying intensity and saturation?

    <p>7,000,000</p> Signup and view all the answers

    What is the most common type of color blindness?

    <p>No red-green distinction</p> Signup and view all the answers

    What is a consequence of using high luminance screens?

    <p>Increased flicker</p> Signup and view all the answers

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