Question 1

The neutral point for protonopes is approximately ___ nm.

Accepted Answer

A)  405 
B)  492 
C)  570 
D)  690 
A)  405 
B)  492 
C)  570 
D)  690

Question 2

Evaluate Newton's claim that the light "rays …are not colored."

Accepted Answer

Newton's idea is that the colors we see

Question 3

The reflectance curve is a plot of the light reflected off a surface as a function of _____.

Accepted Answer

A)  spatial frequency 
B)  contrast 
C)  wavelength 
D)  orientation 
A)  spatial frequency 
B)  contrast 
C)  wavelength 
D)  orientation

Question 4

Which statement below best describes the current consensus on the theories of color vision

Accepted Answer

A)  The physiological support for the trichromatic theory is greater than the support for the opponent-process theory. 
B)  The physiological evidence for the opponent-process theory has shown that the trichromatic theory is incorrect. 
C)  The psychophysical evidence for the trichromatic theory has shown that the opponent-process theory is incorrect. 
D)  The physiology of the cone receptors and the discovery of opponent cells in the retina and LGN show that both theories are correct. 
A)  The physiological support for the trichromatic theory is greater than the support for the opponent-process theory. 
B)  The physiological evidence for the opponent-process theory has shown that the trichromatic theory is incorrect. 
C)  The psychophysical evidence for the trichromatic theory has shown that the opponent-process theory is incorrect. 
D)  The physiology of the cone receptors and the discovery of opponent cells in the retina and LGN show that both theories are correct.

Question 5

Physiological evidence shows that deuteranopes do not have the _____ wavelength cone pigment.

Accepted Answer

A)  short 
B)  medium 
C)  long 
D)  short and long 
A)  short 
B)  medium 
C)  long 
D)  short and long

Question 6

In order to distinguish between wavelengths independent of light intensity, one must have at least _____visual pigment(s).

Accepted Answer

A)  one? 
B)  two 
C)  three 
D)  four 
A)  one? 
B)  two 
C)  three 
D)  four

Question 7

Describe the phenomenological evidence Hering provided for the opponent-process theory of color vision.

Accepted Answer

Hering's ideas about opponent colors wer

Question 8

Color constancy works best when _____.

Accepted Answer

A)  surrounding colors are masked 
B)  chromatic adaptation occurs 
C)  a color object is surrounded by one other color 
D)  a color object is surrounded by many different colors 
A)  surrounding colors are masked 
B)  chromatic adaptation occurs 
C)  a color object is surrounded by one other color 
D)  a color object is surrounded by many different colors

Question 9

The basic colors in the color circle are _____.

Accepted Answer

A)  red, white, blue and green. 
B)  black, white, and gray 
C)  red, green, and blue 
D)  red, green, blue, and yellow 
A)  red, white, blue and green. 
B)  black, white, and gray 
C)  red, green, and blue 
D)  red, green, blue, and yellow

Question 10

Newton's quote, "The rays …are not colored", means that _____.

Accepted Answer

A)  we can determine the accuracy of color perception by measuring the wavelength of the light 
B)  colors are created by our perceptual system 
C)  the experience of color is not arbitrary 
D)  a 450 nm pattern will look the identical shade of blue to all human trichromats 
A)  we can determine the accuracy of color perception by measuring the wavelength of the light 
B)  colors are created by our perceptual system 
C)  the experience of color is not arbitrary 
D)  a 450 nm pattern will look the identical shade of blue to all human trichromats

Question 11

Uchikawa et al. demonstrated how _____ can explain why color constancy occurs.

Accepted Answer

A)  chromatic adaptation 
B)  the ratio principle? 
C)  isomerization 
D)  neural circuitry 
A)  chromatic adaptation 
B)  the ratio principle? 
C)  isomerization 
D)  neural circuitry

Question 12

The trichromatic theory of color vision states that color perception is due to _____.

Accepted Answer

A)  the pattern of activity in four different receptors mechanisms 
B)  the activity pattern in the occipital, parietal, and temporal cortical lobes 
C)  the pattern of activity in three different receptor mechanisms 
D)  processing in layers 1,2, and 3 in the LGN 
A)  the pattern of activity in four different receptors mechanisms 
B)  the activity pattern in the occipital, parietal, and temporal cortical lobes 
C)  the pattern of activity in three different receptor mechanisms 
D)  processing in layers 1,2, and 3 in the LGN

Question 13

The wavelength distributions from an incandescent light bulb and from sunlight are _____.

Accepted Answer

A)  exactly the same 
B)  different, with the incandescent light bulb distribution having much higher amounts of energy at long wavelengths 
C)  different, with the incandescent light bulb distribution having much higher amounts of energy at short wavelengths 
D)  different, with the sunlight distribution having much higher amounts of energy at long wavelengths 
A)  exactly the same 
B)  different, with the incandescent light bulb distribution having much higher amounts of energy at long wavelengths 
C)  different, with the incandescent light bulb distribution having much higher amounts of energy at short wavelengths 
D)  different, with the sunlight distribution having much higher amounts of energy at long wavelengths

Question 14

The reflectance curve for a purple piece of paper will reflect _____.

Accepted Answer

A)  short wavelengths 
B)  long wavelengths only 
C)  all wavelengths equally 
D)  long and short wavelengths 
A)  short wavelengths 
B)  long wavelengths only 
C)  all wavelengths equally 
D)  long and short wavelengths

Question 15

The absorption curves for honeybee visual pigments are _____.

Accepted Answer

A)  nearly identical to those of humans 
B)  shifted downward, so honeybees can see shorter wavelengths than humans can 
C)  shifted upward, so honeybees can see longer wavelengths than humans can 
D)  shifted downward for the lowest wavelength lights and shifted upward for the highest 
A)  nearly identical to those of humans 
B)  shifted downward, so honeybees can see shorter wavelengths than humans can 
C)  shifted upward, so honeybees can see longer wavelengths than humans can 
D)  shifted downward for the lowest wavelength lights and shifted upward for the highest

Question 16

Which of the following is an opponent mechanism proposed by Hering

Accepted Answer

A)  Black (+); White (-) 
B)  Red (+); Green (-) 
C)  Blue (+); Red (-) 
D)  Black (-); Yellow (+) 
A)  Black (+); White (-) 
B)  Red (+); Green (-) 
C)  Blue (+); Red (-) 
D)  Black (-); Yellow (+)

Question 17

Yellow and blue light is projected on a white screen. What color will the screen appear to be

Accepted Answer

A)  white 
B)  gray 
C)  green 
D)  purple 
A)  white 
B)  gray 
C)  green 
D)  purple

Question 18

Does retinal physiology support the trichromatic theory, opponent-processing theory, or both
Support your answer.

Accepted Answer

Our experience of color is shaped by phy

Question 19

Dr. Lanzilotti wants to create a stimulus that will produce an afterimage of a red heart shape against a white background. He should make the heart _____ and the background _____.

Accepted Answer

A)  red; green 
B)  green; black 
C)  blue; white 
D)  pink; red 
A)  red; green 
B)  green; black 
C)  blue; white 
D)  pink; red

Question 20

By changing _____, we can create about a million (or more) discriminable colors.

Accepted Answer

A)  saturation only 
B)  value only 
C)  hue and saturation, but not value 
D)  saturation, value, and hue 
A)  saturation only 
B)  value only 
C)  hue and saturation, but not value 
D)  saturation, value, and hue

The neutral point for protonopes is approximately ___ nm.

Evaluate Newton's claim that the light "rays …are not colored."

The reflectance curve is a plot of the light reflected off a surface as a function of _____.

Which statement below best describes the current consensus on the theories of color vision

Physiological evidence shows that deuteranopes do not have the _____ wavelength cone pigment.

In order to distinguish between wavelengths independent of light intensity, one must have at least _____visual pigment(s).

Describe the phenomenological evidence Hering provided for the opponent-process theory of color vision.

Color constancy works best when _____.

The basic colors in the color circle are _____.

Newton's quote, "The rays …are not colored", means that _____.

Uchikawa et al. demonstrated how _____ can explain why color constancy occurs.

The trichromatic theory of color vision states that color perception is due to _____.

The wavelength distributions from an incandescent light bulb and from sunlight are _____.

The reflectance curve for a purple piece of paper will reflect _____.

The absorption curves for honeybee visual pigments are _____.

Which of the following is an opponent mechanism proposed by Hering

Yellow and blue light is projected on a white screen. What color will the screen appear to be

Does retinal physiology support the trichromatic theory, opponent-processing theory, or both Support your answer.

Dr. Lanzilotti wants to create a stimulus that will produce an afterimage of a red heart shape against a white background. He should make the heart _ and the background _.

By changing _____, we can create about a million (or more) discriminable colors.

Introduction to Perception

The Beginning of the Perceptual Process

Neural Processing

Cortical Organization

Perceiving Objects and Scenes

Visual Attention

Taking Action

Perceiving Motion

Perceiving Depth and Size

Hearing I: Basic Processes and Pitch Perception

Hearing II: Location and Organization

Speech Perception

The Cutaneous Senses

The Chemical Senses

Filters

Exam 9: Perceiving Color

The neutral point for protonopes is approximately ___ nm.

Evaluate Newton's claim that the light "rays …are not colored."

The reflectance curve is a plot of the light reflected off a surface as a function of _____.

Which statement below best describes the current consensus on the theories of color vision

Physiological evidence shows that deuteranopes do not have the _____ wavelength cone pigment.

In order to distinguish between wavelengths independent of light intensity, one must have at least _____visual pigment(s).

Describe the phenomenological evidence Hering provided for the opponent-process theory of color vision.

Color constancy works best when _____.

The basic colors in the color circle are _____.

Newton's quote, "The rays …are not colored", means that _____.

Uchikawa et al. demonstrated how _____ can explain why color constancy occurs.

The trichromatic theory of color vision states that color perception is due to _____.

The wavelength distributions from an incandescent light bulb and from sunlight are _____.

The reflectance curve for a purple piece of paper will reflect _____.

The absorption curves for honeybee visual pigments are _____.

Which of the following is an opponent mechanism proposed by Hering

Yellow and blue light is projected on a white screen. What color will the screen appear to be

Does retinal physiology support the trichromatic theory, opponent-processing theory, or both Support your answer.

Dr. Lanzilotti wants to create a stimulus that will produce an afterimage of a red heart shape against a white background. He should make the heart _____ and the background _____.

By changing _____, we can create about a million (or more) discriminable colors.

Introduction to Perception

The Beginning of the Perceptual Process

Neural Processing

Cortical Organization

Perceiving Objects and Scenes

Visual Attention

Taking Action

Perceiving Motion

Perceiving Depth and Size

Hearing I: Basic Processes and Pitch Perception

Hearing II: Location and Organization

Speech Perception

The Cutaneous Senses

The Chemical Senses

Filters

Dr. Lanzilotti wants to create a stimulus that will produce an afterimage of a red heart shape against a white background. He should make the heart _ and the background _.