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

What determines our perception of size?

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

What is the effect of increased luminance on visual acuity?

<p>It increases (C)</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 (D)</p> Signup and view all the answers

What is the most common type of color blindness?

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

What is a consequence of using high luminance screens?

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

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