py101 review quiz chapter 4

Topics: Color, Visual system, Visual perception Pages: 17 (1533 words) Published: November 25, 2013
Question 1
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Light, the stimulus for vision, is
Select one:

a.
a form of chemical energy.

b.
a form of mechanical energy.

c.
a form of electromagnetic radiation.

d.
the result of vibrations of molecules.
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The correct answer is:
c.
a form of electromagnetic radiation.
Question 2
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If a person views three lights that differ only in amplitude, the person would perceive the lights as Select one:

a.
differing in brightness.

b.
different colors.

c.
differing in brightness and color.

d.
differing in purity.
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The correct answer is:
a.
differing in brightness.
Question 3
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The lens in the eye
Select one:

a.
converts light energy into neural energy.

b.
controls the amount of light entering the eye.

c.
bends entering light rays and focuses them onto the retina.

d.
is the part of the eye that gives it its color.
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The correct answer is:
c.
bends entering light rays and focuses them onto the retina.
Question 4
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As people age, the lens of the eye loses its ability to accommodate, and it tends to remain flat instead of becoming fat and round. This suggests that as people age they will Select one:

a.
lose their ability to focus on objects in the distance.

b.
be less likely to detect differences in light purity.

c.
be more likely to detect differences in brightness and hue.

d.
lose their ability to focus on objects that are close.
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The correct answer is:
d.
lose their ability to focus on objects that are close.
Question 5
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While ____ are the receptor cells for color vision, ____ allow us to see in dim light. Select one:

a.
cones; rods

b.
rods; cones

c.
bipolar cells; ganglion cells

d.
ganglion cells; bipolar cells
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The correct answer is:
a.
cones; rods
Question 6
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The optic disk is
Select one:

a.
where the optic nerve exits the retina.

b.
the brain structure responsible for the merging of visual fields from both eyes.

c.
where light enters the eye.

d.
another term for the lens.
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The correct answer is:
a.
where the optic nerve exits the retina.
Question 7
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Which of the following is NOT one of the three major types of cells in the visual cortex? Select one:

a.
ganglion cells

b.
hypercomplex cells

c.
complex cells

d.
simple cells
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The correct answer is:
a.
ganglion cells
Question 8
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If you project a red, a green, and a blue light into space, the point at which the three lights cross will lead to the perception of Select one:

a.
black light.

b.
ultraviolet light.

c.
white light.

d.
infrared light.
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The correct answer is:
c.
white light.
Question 9
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The action of the lateral geniculate nucleus (LGN) supports the Select one:

a.
Young-Helmholtz theory of color vision.

b.
opponent process theory of color vision.

c.
trichromatic theory of color vision.

d.
Yerkes-Dodson theory of color vision.
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The correct answer is:
b.
opponent process theory of color vision.
Question 10
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The likelihood of inattentional blindness _________ when working on a task requiring _______ of attention or has a heavy perceptual load. Select one:

a.
increases; a lot

b.
decreases; a lot

c.
remains the same; a lot

d.
increases; none
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