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Home Q & A Board Science-Related Homework Help Psychology
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Johnnyvic Johnnyvic
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6 years ago
When a sparkler is twirled rapidly, people perceive a circle of light. This occurs because
 
  a. the trail you see is caused by sparks left behind from the sparkler.
  b. due to its differing wavelengths, the light from the sparkler continues to radiate for about a second after it goes out.
  c. the length of iconic memory (the persistence of vision) is about a fraction of a second.
  d. Gestalt principles work to complete the circle in our minds.

Question 2

When light from a flashlight is moved quickly back and forth on a wall in a darkened room, it can appear to observers that there is a trail of light moving across the wall, even though physically the light is only in one place at any given time. This experience is an effect of memory that occurs because of
 
  a. a visual delay effect.
  b. echoic memory.
  c. persistence of vision.
  d. top-down processing.
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bobobobo
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6 years ago
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Johnnyvic Author
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#2
6 years ago
All correct!
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