Self Test - Perception
1. An absolute threshold is the intensity level that you
just barely detect.
detect 50 percent of the time.
detect every time it is presented.
guess is there, even if you cant quite detect it.
2. A stimulus that is detected less than 50% of the time is called
a(n) ________ stimulus.
absolute
detectable
subliminal
just noticeable
3. The just noticeable difference serves as the foundation for:
Weber's Law
transduction
Ponzo illusion
absolute threshold
4. Fechner is to Weber as ________ is to just noticeable difference.
sensation
interposition
figure-ground
absolute threshold
5. Which of the following best represents sensation?
an aircraft pilot making an adjustment in altitude
a college student interpreting an essay by Plato
a fourteen-year-old seeing a bright flash of light
deciding to wear shorts today because the weather is nice
6. An orange blob is to a tiger as ________ is to ________.
sensation; perception
perception; sensation
proximity; figure-ground
Weber's law; sensation
7. Sensation is to ________ as perception is to ________.
JND; Weber's Law
similarity; simplicity
monocular; binocular
meaningless; meaningful
8. Structuralism is to Gestalt as ______ is to _______.
rules; JND
rules; addition
addition; rules
Weber's Law; JND
9. Looking up at the blue sky, Kyle imagined that he saw the clouds as
animal shapes. Viewing clouds against the sky is an example
of which principle of perceptual organization?
closure
continuity
simplicity
figure & ground
hallucination
10. Professor Redd walks into her filled classroom, immediately perceiving
students as sitting in rows rather than in a haphazard fashion.
This is similar to what principle of perceptual organization?
closure
similarity
simplicity
figure & ground
11. Rick is coming in for a night landing in his twin-engine plane. He sees
blue lights on the ground before him. Mark perceives this to be the
outline of the runway. What principle of perceptual organization
is he most likely using?
spread
contour
continuity
familiarity
12. Given that size constancy appears to be learned, what would a blind
person whose sight is suddenly restored say as he looked out the
window of an airplane as it flies high above in the sky?
- "Very small people must live in those very small houses down there."
- "It seems that the cars down on the ground are moving very slowly."
- "Why does the color of those houses down there keep changing?"
- "Amazing I can really see those houses very clearly."
13. What are the three dimensions that our visual system allows us to perceive?
Of the three, which one is added by our visual system?
depth, width, height - depth
depth, convergence, height - depth
width, height, diameter - diameter
accommodation, disparity, depth - disparity
14. Because the eyes are separated by several inches, each eye receives
a slightly different image. This is called:
convergence
interposition
retinal disparity
shape inconsistency
15. If one object partially overlaps another object, the partially overlapping
object will appear closer because of the ________ depth cue.
relative size
interposition
retinal disparity
motion parallax
16. A brochure displays a long stretch of road. The lines that make up the road are
drawn so that they converge at the horizon. The result is that the brochure
creates a sense of distance. This is based on a monocular cue called:
relative size
convergence
texture gradient
linear perspective
17. If you are looking at a lighthouse in the fog, the lighthouse will appear
farther away than it really is because of a monocular depth cue called:
interposition
linear perspective
retinal disparity
atmospheric perspective
18. An artist wishing to use texture as a cue to depth in his painting would
space his objects evenly from near to far
put finer detail in objects he wanted to appear close
put finer detail in objects that he wanted to appear farther away
put finer detail into an object that bordered the area to be viewed
19. The brain transforms the speed of moving objects into indicators of distance
because of a depth cue called:
interposition
retinal disparity
motion parallax
linear perspective
20. The Ponzo illusion illustrates that in some illusions:
- distance cues can distort size cues
- monocular cues are very misleading
- eye convergence is susceptible to misapplication
- previous experience with corners of rooms leads us to
make incorrect judgments
21. The key idea in a perceptual set is:
monocular depth perception
figure-ground rule
phi movement
expectation
22. The illusion of lights moving that are actually stationary is called:
real motion
phi movement
motion parallax
apparent motion
23. Its a clear dark night, you can see a candle flame __ miles away.
10
20
30
40
24. Receptor cells for a sense are activated, the process of _________ has begun.
sensation
adaptation
perception
sublimination
25. Which supposed ESP ability involves being able to percieve events or objects that are out of sight, that is
to"see" something that is not physically present by touching another object?
telepathy
telekinesis
clairvoyance
precognition
26. If you have to add 1 teaspoon of sugar to a cup of coffee that already has 5 teaspoons of sugar in it to notice
a difference in sweetness. A cup of coffee with 10 teaspoons of sugar in it, would require how many teaspoons
for you to notice the difference in sweetness at least half the time?
1
2
4
8
27. The Mόller-Lyer illusion would most likely exist in cultures in which there are
lots of trees.
more women than men.
more men than women.
buildings with lots of corners.
28. You perceive these lines: ||||| ||||| as two groups of five, rather than as 10 separate lines due to the Gestalt principle of
closure.
similarity.
continuity.
proximity.
common fate.
29. __________ occurs when one object seems to block another object.
overlap
convergence
texture gradient
linear perspective
30. Illusions
correspond directly to reality.
are the same thing as hallucinations.
exist only in the brain cells of the viewer.
are a distorted perception of the actual stimuli.
31. A reversible figure makes use of which principle of perception?
expectancy
shape constancy
depth perception
figure-ground relationships
32. The tendency to perceive a dime as being round even when it is viewed at an angle is called
size constancy.
color constancy.
shape constancy.
brightness constancy.
33. Which of the following is not a monocular depth cue?
overlap
convergence
texture gradient
linear perspective
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Topics in Psychology
Robert C. Gates