Question 1

Regarding red-green color weakness, which of the following statements is FALSE?

Accepted Answer

A)  Approximately eight percent of Caucasian males have a red-green color weakness.
B)  More Asian, African, and Native American males than Caucasian males have a red-green color weakness.
C)  One percent of women have a red-green color weakness.
D)  People who have a red-green color weakness see reds and greens as the same color, usually a yellowish brown.E) C) and D)
F) All of the above

Question 2

Based on gender and ethnicity, which of the following persons is most likely to have red-green color weakness?

Accepted Answer

A)  Sam, a Native American male
B)  Jake, a Caucasian male
C)  Robert, an African-American male
D)  Suki, an Asian femaleE) A) and D)
F) B) and C)

Question 3

Visual _____ is a disturbance in the ability to perceive the meaning of stimuli, such as words, objects, or pictures that are seen.

Accepted Answer

A)  agnosia
B)  aphasia
C)  myopia
D)  hyperopiaE) All of the above
F) B) and D)

Question 4

According to the trichromatic theory of color vision,

Accepted Answer

A)  there are three types of cones, each sensitive to either red, green, or blue.
B)  other colors besides red, green, or blue result from combinations of these three colors.
C)  black and white sensations are produced by the rods.
D)  all of these statements are true.E) A) and B)
F) A) and C)

Question 5

Damage to the receptors for peripheral vision could be expected to create

Accepted Answer

A)  higher visual acuity.
B)  tunnel vision.
C)  blindness.
D)  color blindness.E) A) and D)
F) None of the above

Question 6

According to the trichromatic theory of color vision,

Accepted Answer

A)  the brain separates images into "either-or" messages of red-green, blue-yellow, or black-white.
B)  there are three types of rods, each sensitive to either yellow, red, or blue.
C)  the eye has color receptors that are limited to white, black, and red.
D)  there are three types of cones, each sensitive to either red, green, or blue.E) A) and C)
F) C) and D)

Question 7

Complete color blindness results in a perception of the world only in black and white and is a result of

Accepted Answer

A)  cones that are missing or function abnormally.
B)  rods that fail to function under higher levels of illumination.
C)  excessive pigmentation of the cornea, a result of genetic factors.
D)  a lens that has lost its elasticity and can no longer focus the image appropriately on the retina.E) C) and D)
F) All of the above

Question 8

The entire spread of electromagnetic energies to which the eyes respond is called the

Accepted Answer

A)  perceptual limit.
B)  visible spectrum.
C)  biological transduction range.
D)  spectral analysis limit.E) A) and C)
F) B) and C)

Question 9

_____ is the process in which the eye's focal point changes as the muscles attached to the lens alter its shape.

Accepted Answer

A)  Assimilation
B)  Accommodation
C)  Perception
D)  TranductionE) B) and D)
F) B) and C)

Question 10

A basic problem with the trichromatic theory is that

Accepted Answer

A)  color can't be analyzed into "either-or" messages.
B)  only two types of light-sensitive visual pigments have been found in the retina.
C)  four colors seem to be primary (cannot get them by mixing other colors) .
D)  it only explains events recorded in the optic pathways after information leaves the eyes.E) B) and C)
F) A) and C)

Question 11

Our sensory systems act as data reduction systems.This means that they

Accepted Answer

A)  can change one form of energy to another.
B)  transmit information to the brain in the form of codes.
C)  select and analyze information and send only the most important data to the brain..
D)  are only sensitive to a small range of sensations that will require additional interpretation by the brain.E) A) and C)
F) B) and C)

Question 12

In daylight, which color becomes relatively brighter?

Accepted Answer

A)  yellow-green
B)  blue-green
C)  red-orange
D)  brown-purpleE) B) and C)
F) A) and D)

Question 13

The most common test for color blindness or color weakness is the

Accepted Answer

A)  Snellen chart.
B)  Ishihara test.
C)  Sheeling test.
D)  Landolt rings.E) All of the above
F) B) and D)

Question 14

Hyperopia, myopia, and astigmatism can be corrected by reshaping the _____ through laser surgery.

Accepted Answer

A)  iris
B)  retina
C)  cornea
D)  pupilE) A) and D)
F) B) and C)

Question 15

If you lack cones or if the cones do not function normally, you will

Accepted Answer

A)  experience night blindness.
B)  confuse red and green colors, but not blue and yellow.
C)  confuse blue and yellow colors, but not red and green.
D)  see the world like a "black-and-white" movie.E) B) and C)
F) A) and D)

Question 16

The rods of the retina

Accepted Answer

A)  number about five million in each human eye.
B)  are responsible for night vision.
C)  produce color sensations.
D)  are specialized for picking up fine detail.E) B) and C)
F) B) and D)

Question 17

The presence of the _____ in the retina shows that vision depends greatly on the visual cortex of the brain actively filling in the gap with patterns from surrounding areas.

Accepted Answer

A)  iris
B)  pupil
C)  fovea
D)  blind spotE) C) and D)
F) All of the above

Question 18

In bright light, visual acuity is greatest when the visual image falls on the

Accepted Answer

A)  cornea.
B)  fovea.
C)  blind spot.
D)  periphery of the retina.E) None of the above
F) A) and C)

Question 19

Hyperopia is the condition of the eyes in which the person cannot

Accepted Answer

A)  focus on distant objects.
B)  see very well in dim illumination.
C)  focus on objects near the eyes.
D)  see clearly because the lens is pigmented.E) A) and B)
F) A) and C)

Question 20

In an experiment, students who listened to subliminal messages to improve their grades performed _____ when their grades were compared.

Accepted Answer

A)  better than students who listened to relaxing ocean sounds
B)  better than students who listened to nothing at all
C)  better than both of the other groups
D)  no better than students in either of the other groupsE) A) and C)
F) All of the above

Exam 4: Extension A: Sensation and Reality

The presence of the _____ in the retina shows that vision depends greatly on the visual cortex of the brain actively filling in the gap with patterns from surrounding areas.

Correct AnswerverifiedShow Answer

Damage to the receptors for peripheral vision could be expected to create

Correct AnswerverifiedShow Answer

If you lack cones or if the cones do not function normally, you will

Correct AnswerverifiedShow Answer

In bright light, visual acuity is greatest when the visual image falls on the

Correct AnswerverifiedShow Answer

In an experiment, students who listened to subliminal messages to improve their grades performed _____ when their grades were compared.

Correct AnswerverifiedShow Answer

_____ is the process in which the eye's focal point changes as the muscles attached to the lens alter its shape.

Correct AnswerverifiedShow Answer

Hyperopia, myopia, and astigmatism can be corrected by reshaping the _____ through laser surgery.

Correct AnswerverifiedShow Answer

Complete color blindness results in a perception of the world only in black and white and is a result of

Correct AnswerverifiedShow Answer

According to the trichromatic theory of color vision,

Correct AnswerverifiedShow Answer

The entire spread of electromagnetic energies to which the eyes respond is called the

Correct AnswerverifiedShow Answer

Based on gender and ethnicity, which of the following persons is most likely to have red-green color weakness?

Correct AnswerverifiedShow Answer

Our sensory systems act as data reduction systems.This means that they

Correct AnswerverifiedShow Answer

A basic problem with the trichromatic theory is that

Correct AnswerverifiedShow Answer

Regarding red-green color weakness, which of the following statements is FALSE?

Correct AnswerverifiedShow Answer

In daylight, which color becomes relatively brighter?

Correct AnswerverifiedShow Answer

Visual _____ is a disturbance in the ability to perceive the meaning of stimuli, such as words, objects, or pictures that are seen.

Correct AnswerverifiedShow Answer

According to the trichromatic theory of color vision,

Correct AnswerverifiedShow Answer

Hyperopia is the condition of the eyes in which the person cannot

Correct AnswerverifiedShow Answer

The rods of the retina

Correct AnswerverifiedShow Answer

The most common test for color blindness or color weakness is the

Correct AnswerverifiedShow Answer

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