Difference Threshold Quiz
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Questions and Answers

What is the minimum amount of change in stimulation that can be detected 50 percent of the time by a given person?

  • Absolute threshold
  • Just noticeable difference (jnd) (correct)
  • Stimulus intensity
  • Weber's law
  • Which term refers to the minimum amount of additional sugar needed in a cup of coffee before one can detect an increase in its sweetness?

  • Absolute threshold
  • Stimulus intensity
  • Weber's law
  • Difference threshold (correct)
  • What is the constant fraction of the original stimulus that is needed to produce the just noticeable difference (jnd)?

  • 2% (correct)
  • 10%
  • 5%
  • 15%
  • In the context of the difference threshold, what does Weber's law state about the jnd for weight?

    <p>It remains constant for all individuals</p> Signup and view all the answers

    What aspect of a stimulus does the absolute threshold refer to?

    <p>Intensity that can be detected 50% of the time</p> Signup and view all the answers

    What factor causes the difference threshold for a particular sensory experience to vary from person to person and from occasion to occasion?

    <p>Weber's law</p> Signup and view all the answers

    What is the term used to describe the tendency of our sensory receptors to have decreasing responsiveness to unchanging stimuli?

    <p>Sensory adaptation</p> Signup and view all the answers

    Why might you stop noticing the odor in your friend's dormitory room after a few minutes?

    <p>Due to sensory adaptation</p> Signup and view all the answers

    What is the purpose of sensory adaptation?

    <p>To detect potentially important changes in the environment</p> Signup and view all the answers

    What happens when vibrations repeatedly stimulate your skin?

    <p>You stop noticing the vibrations</p> Signup and view all the answers

    What does sensory adaptation enable you to do?

    <p>Detect potentially important changes in the environment</p> Signup and view all the answers

    Why is it adaptive not to adapt completely to extremely intense sensations?

    <p>To avoid harm from intense sensations</p> Signup and view all the answers

    What would serve little purpose if you continued noticing it after initial detection?

    <p>'Month-old garbage' signal from sensory receptors</p> Signup and view all the answers

    What might happen if you ignore severe pain or freezing cold?

    <p>It might be harmful or even fatal</p> Signup and view all the answers

    What does Sensory adaptation let you do?

    <p>Detect potentially important changes in the environment</p> Signup and view all the answers

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