Question 1

What is the principle evidence for trichromacy in human vision?

Accepted Answer

The principle evidence for trichromacy in human vision comes from color matching experiments. These experiments show that any color can be matched by a mixture of three primary colors, typically red, green, and blue. This is consistent with the trichromatic theory of vision, which suggests that there are three types of color receptors (cones) in the human eye, each sensitive to a different range of wavelengths. Further evidence comes from the existence of three types of color blindness, each corresponding to a deficiency in one of the three types of cones. Additionally, physiological studies have identified three types of cones in the retina, each with different spectral sensitivities, providing direct evidence for trichromacy.

Question 2

A person who sees everything in shades of gray is a

Accepted Answer

A)  monochromat. 
B)  presbyope. 
C)  mesope. 
D)  polychromat. 
A)  monochromat. 
B)  presbyope. 
C)  mesope. 
D)  polychromat. A

Question 3

A highly saturated hue is present when a strong chromatic response is accompanied by a

Accepted Answer

A)  strong achromatic response. 
B)  weak achromatic response. 
C)  strong chromatic response in the S-(M+L) channel. 
D)  none of these 
A)  strong achromatic response. 
B)  weak achromatic response. 
C)  strong chromatic response in the S-(M+L) channel. 
D)  none of these B

Question 4

If one combines two colors on Newton's color circle and the result is a color, such as purple, that is not on the circle, the derived color is referred to as a(n) _______________ color.

Accepted Answer

A)  nonspectral 
B)  pure 
C)  complementary 
D)  none of these 
A)  nonspectral 
B)  pure 
C)  complementary 
D)  none of these

Question 5

Which task merely requires an observer to pick out an object from its background?

Accepted Answer

A)  isoluminance 
B)  detection 
C)  identification 
D)  discrimination 
A)  isoluminance 
B)  detection 
C)  identification 
D)  discrimination

Question 6

The most common form of congenital color vision deficiency is termed ___________________ and is evidenced by confusions of ____________________.

Accepted Answer

A)  monochromacy; short and long wavelengths 
B)  dichromacy; short and middle wavelengths 
C)  anamolous monochromacy; all wavelengths 
D)  dichromacy; middle and long wavelengths 
A)  monochromacy; short and long wavelengths 
B)  dichromacy; short and middle wavelengths 
C)  anamolous monochromacy; all wavelengths 
D)  dichromacy; middle and long wavelengths

Question 7

According to the work of DeValois and DeValois (1975), which of the following is/are true?

Accepted Answer

A)  Opponent cells can show both an ON and an OFF response. 
B)  Opponent cells show only an ON or OFF response. 
C)  Nonopponent cells show both an ON and an OFF response. 
D)  all of these 
A)  Opponent cells can show both an ON and an OFF response. 
B)  Opponent cells show only an ON or OFF response. 
C)  Nonopponent cells show both an ON and an OFF response. 
D)  all of these

Question 8

If Maria, who has normal color vision, was exposed to a light of about 580 nanometers, she would probably classify the light as

Accepted Answer

A)  red. 
B)  blue. 
C)  yellow. 
D)  green. 
A)  red. 
B)  blue. 
C)  yellow. 
D)  green.

Question 9

On the circumference of a sophisticated color circle, _________________ colors lie directly across from each other.

Accepted Answer

A)  complementary 
B)  nonspectral 
C)  unsaturated 
D)  metameric 
A)  complementary 
B)  nonspectral 
C)  unsaturated 
D)  metameric

Question 10

Manuel is a monochromat but usually is able to distinguish between a blue flag and a yellow one because the two colors differ in

Accepted Answer

A)  lightness. 
B)  wavelength. 
C)  emotional tone. 
D)  timbre. 
A)  lightness. 
B)  wavelength. 
C)  emotional tone. 
D)  timbre.

Question 11

The best evidence for the perceptual reality of color-grapheme synesthesia is that

Accepted Answer

A)  a synesthete reports that the synesthetic colors add to ink colors. 
B)  a synesthete reacts more slowly in naming an ink color when the synesthetic color is different from the . color of the ink than a nonsynesthete does. 
C)  a synesthete identifies a shape when the elements and background are different synesthetic colors faster than a nonsynesthete does. 
D)  a synesthete insists on color compatibility of the names of spouses. 
A)  a synesthete reports that the synesthetic colors add to ink colors. 
B)  a synesthete reacts more slowly in naming an ink color when the synesthetic color is different from the . color of the ink than a nonsynesthete does. 
C)  a synesthete identifies a shape when the elements and background are different synesthetic colors faster than a nonsynesthete does. 
D)  a synesthete insists on color compatibility of the names of spouses.

Question 12

Color ___________ is when different wavelengths yield the same color; color ___________ is when the same wavelengths yield different colors.

Accepted Answer

A)  adaptation; induction 
B)  induction; constancy 
C)  constancy; contrast 
D)  contrast; adaptation 
A)  adaptation; induction 
B)  induction; constancy 
C)  constancy; contrast 
D)  contrast; adaptation

Question 13

How does light from the sun differ from light emitted by an incandescent light bulb? Why don't the colors of objects look dramatically different when those objects are viewed under these two different light sources?

Accepted Answer

The light from the sun differs from ligh

Question 14

In the LGN, the achromatic channel is subserved by the ___________ cells, the red-green channel by the
__________ cells, and the blue-yellow channel by the ___________ cells.

Accepted Answer

A)  S;M;L 
B)  S;M;P 
C)  P;K;M 
D)  M;P;K 
A)  S;M;L 
B)  S;M;P 
C)  P;K;M 
D)  M;P;K

Question 15

The receptive fields of LGN cells respond to

Accepted Answer

A)  wavelength. 
B)  color. 
C)  contrasts between wavelengths. 
D)  contrasts between colors. 
A)  wavelength. 
B)  color. 
C)  contrasts between wavelengths. 
D)  contrasts between colors.

Question 16

Which of the following suggest(s) color opponency?

Accepted Answer

A)  color contrast 
B)  color afterimages 
C)  both color contrast and color afterimages 
D)  neither color contrast nor color afterimages 
A)  color contrast 
B)  color afterimages 
C)  both color contrast and color afterimages 
D)  neither color contrast nor color afterimages

Question 17

Define synesthesia. What does it have to do with color perception? Describe research aimed at establishing the perceptual reality of synesthesia.

Accepted Answer

Synesthesia is a neurological condition

Question 18

If colors are presented side by side, people can reliably distinguish

Accepted Answer

A)  about a dozen different colors. 
B)  about 40 to 50 colors. 
C)  about 100 to 200 colors. 
D)  more than 1,000 different colors. 
A)  about a dozen different colors. 
B)  about 40 to 50 colors. 
C)  about 100 to 200 colors. 
D)  more than 1,000 different colors.

Question 19

Visual color deficiency is least common in

Accepted Answer

A)  Caucasian males. 
B)  Caucasian females. 
C)  Asiatic males. 
D)  American Indian males. 
A)  Caucasian males. 
B)  Caucasian females. 
C)  Asiatic males. 
D)  American Indian males.

Question 20

Peter wears a red filter over one eye and keeps the other eye closed, for an hour. When he closes the eye with the filter and looks at the world with the previously closed eye, he sees that everything has a blue-green tint. According to Neitz and associates (2002), this shows

Accepted Answer

A)  interocular transfer of an afterimage. 
B)  color induction. 
C)  a change in chromatic aberration in each eye. 
D)  recalibration of white in the brain. 
A)  interocular transfer of an afterimage. 
B)  color induction. 
C)  a change in chromatic aberration in each eye. 
D)  recalibration of white in the brain.

What is the principle evidence for trichromacy in human vision?

A person who sees everything in shades of gray is a

A highly saturated hue is present when a strong chromatic response is accompanied by a

If one combines two colors on Newton's color circle and the result is a color, such as purple, that is not on the circle, the derived color is referred to as a(n) _______________ color.

Which task merely requires an observer to pick out an object from its background?

The most common form of congenital color vision deficiency is termed _ and is evidenced by confusions of __.

According to the work of DeValois and DeValois (1975), which of the following is/are true?

If Maria, who has normal color vision, was exposed to a light of about 580 nanometers, she would probably classify the light as

On the circumference of a sophisticated color circle, _________________ colors lie directly across from each other.

Manuel is a monochromat but usually is able to distinguish between a blue flag and a yellow one because the two colors differ in

The best evidence for the perceptual reality of color-grapheme synesthesia is that

Color _ is when different wavelengths yield the same color; color _ is when the same wavelengths yield different colors.

How does light from the sun differ from light emitted by an incandescent light bulb? Why don't the colors of objects look dramatically different when those objects are viewed under these two different light sources?

In the LGN, the achromatic channel is subserved by the _ cells, the red-green channel by the cells, and the blue-yellow channel by the ___ cells.

The receptive fields of LGN cells respond to

Which of the following suggest(s) color opponency?

Define synesthesia. What does it have to do with color perception? Describe research aimed at establishing the perceptual reality of synesthesia.

If colors are presented side by side, people can reliably distinguish

Visual color deficiency is least common in

Peter wears a red filter over one eye and keeps the other eye closed, for an hour. When he closes the eye with the filter and looks at the world with the previously closed eye, he sees that everything has a blue-green tint. According to Neitz and associates (2002), this shows

Introduction to Perception

The Human Eye

The Eye and Seeing

Central Visual Pathways

Spatial Vision and Patten Perception

Object Perception: Recognizing the Things We See

Seeing a Three-Dimensional World

Action and the Perception of Events

The Ear and Auditory System

Hearing and Listening

Speech and Music Perception

Touch

Chemical Senses L: Smell

Chemical Senses Ll: Taste

Filters

Exam 7: Color Perception

What is the principle evidence for trichromacy in human vision?

A person who sees everything in shades of gray is a

A highly saturated hue is present when a strong chromatic response is accompanied by a

If one combines two colors on Newton's color circle and the result is a color, such as purple, that is not on the circle, the derived color is referred to as a(n) _______________ color.

Which task merely requires an observer to pick out an object from its background?

The most common form of congenital color vision deficiency is termed ___________________ and is evidenced by confusions of ____________________.

According to the work of DeValois and DeValois (1975), which of the following is/are true?

If Maria, who has normal color vision, was exposed to a light of about 580 nanometers, she would probably classify the light as

On the circumference of a sophisticated color circle, _________________ colors lie directly across from each other.

Manuel is a monochromat but usually is able to distinguish between a blue flag and a yellow one because the two colors differ in

The best evidence for the perceptual reality of color-grapheme synesthesia is that

Color ___________ is when different wavelengths yield the same color; color ___________ is when the same wavelengths yield different colors.

How does light from the sun differ from light emitted by an incandescent light bulb? Why don't the colors of objects look dramatically different when those objects are viewed under these two different light sources?

In the LGN, the achromatic channel is subserved by the ___________ cells, the red-green channel by the __________ cells, and the blue-yellow channel by the ___________ cells.

The receptive fields of LGN cells respond to

Which of the following suggest(s) color opponency?

Define synesthesia. What does it have to do with color perception? Describe research aimed at establishing the perceptual reality of synesthesia.

If colors are presented side by side, people can reliably distinguish

Visual color deficiency is least common in

Peter wears a red filter over one eye and keeps the other eye closed, for an hour. When he closes the eye with the filter and looks at the world with the previously closed eye, he sees that everything has a blue-green tint. According to Neitz and associates (2002), this shows

Introduction to Perception

The Human Eye

The Eye and Seeing

Central Visual Pathways

Spatial Vision and Patten Perception

Object Perception: Recognizing the Things We See

Seeing a Three-Dimensional World

Action and the Perception of Events

The Ear and Auditory System

Hearing and Listening

Speech and Music Perception

Touch

Chemical Senses L: Smell

Chemical Senses Ll: Taste

Filters

The most common form of congenital color vision deficiency is termed _ and is evidenced by confusions of __.

Color _ is when different wavelengths yield the same color; color _ is when the same wavelengths yield different colors.

In the LGN, the achromatic channel is subserved by the _ cells, the red-green channel by the cells, and the blue-yellow channel by the ___ cells.