Question 1

Astigmatism refers to the ____.

Accepted Answer

A)   sensitive period for development of vision
B)   ability to see horizontal and vertical lines
C)   asymmetric curvature of eyes
D)   inability to detect motion

Question 2

What is one way to determine whether a given cell in the primary visual cortex is "simple" or "complex"?

Accepted Answer

A)   the shape of its receptive field
B)   whether its receptive field is monocular or binocular
C)   whether it can respond equally to lines in more than one location
D)   whether it is sensitive to the orientation of the stimulus

Question 3

Chemicals that release energy when struck by light are called ____.

Accepted Answer

A)   photo-optics
B)   photopigments
C)   opsins
D)   kestrels

Question 4

The primary visual cortex sends its information ____.

Accepted Answer

A)   to the lateral geniculate nucleus
B)   to area V1
C)   to area V2
D)   back to the retina

Question 5

Which cell responds most strongly to a stimulus moving perpendicular to its axis?

Accepted Answer

A)   Simple
B)   Complex
C)   Lateral geniculate
D)   Ganglion

Question 6

Someone with prosopagnosia has difficulty with ____.

Accepted Answer

A)   focusing on colored objects
B)   seeing items located in the left visual field
C)   recognizing faces
D)   processing information from more than one sensory modality at a time

Question 7

According to the Young-Helmholtz theory, what is the basis for color vision?

Accepted Answer

A)   A different receptor for each color
B)   Three kinds of cones
C)   A single receptor that produces different responses for each color
D)   The combined influences of rods and cones

Question 8

According to the trichromatic theory, we can perceive only three colors.

Accepted Answer

A) True 
 B)False

Question 9

Jamison has prosopagnosia. What part of his vision is disrupted?

Accepted Answer

Jamison is unable to recognize...

Question 10

The ____ of any neuron in the visual system is the area of the visual field that excites or inhibits it.

Accepted Answer

A)   stimulus field
B)   convergence field
C)   receptive field
D)   bipolar field

Question 11

Johannes Müller held that whatever excites a particular nerve establishes a special kind of energy unique to that nerve.

Accepted Answer

A) True 
 B)False

Question 12

As a human, Lino is really good at detecting motion. This is because of his _____.

Accepted Answer

A)   magnocellular neurons in the periphery
B)   parvocellular neurons tightly packed in the periphery
C)   no cones in the periphery
D)   the strength of the eye muscles

Question 13

Professor Hancock is giving a lecture about peripheral vision. Which is the most likely to say?

Accepted Answer

A)   It is very sensitive to detail.
B)   It is easier to recognize single objects in the periphery that are not surrounded by other objects.
C)   It is not very sensitive to light.
D)   It is most sensitive to color, which helps to differentiate multiple objects clearly.

Question 14

Light enters the eye through an opening in the center of the iris called the ____.

Accepted Answer

A)   retina
B)   cornea
C)   pupil
D)   macula

Question 15

Which of the following would be easiest for someone who is motion blind?

Accepted Answer

A)   Dressing themselves
B)   Driving a car
C)   Taking the dog for a walk
D)   Filling a pitcher with water

Question 16

____ are chemicals that release energy when struck by light.

Accepted Answer

A)   Phototransmitters
B)   Photosins
C)   Photopigments
D)   Photoions

Question 17

Photopigments are stable in the dark.

Accepted Answer

A) True 
 B)False

Question 18

What would be the likely outcome of a person who was blind at birth, and had vision restored later in life by the removal of cataracts (clouded lenses) ?

Accepted Answer

A)   Quick development of normal vision
B)   Trouble describing the shapes of objects
C)   Trouble identifying the location of light
D)   Inability to use touch and sound cues to maneuver around in a building

Question 19

The receptive field of a receptor is the ____.

Accepted Answer

A)   point at which the optic nerve exits the retina
B)   axon hillock
C)   point in space from which light strikes the receptor
D)   point where light shines on, and excites, the visual cortex

Question 20

What type of cell responds to a pattern of light in a particular orientation anywhere within its large receptive field, regardless of the exact location of the stimulus?

Accepted Answer

A)   Simple
B)   Complex
C)   Bipolar
D)   Ganglion

Exam 5: Vision

The ____ of any neuron in the visual system is the area of the visual field that excites or inhibits it.

Correct AnswerverifiedShow Answer

As a human, Lino is really good at detecting motion. This is because of his _____.

Correct AnswerverifiedShow Answer

According to the Young-Helmholtz theory, what is the basis for color vision?

Correct AnswerverifiedShow Answer

Jamison has prosopagnosia. What part of his vision is disrupted?

Correct AnswerverifiedJamison is unable to recognize...View AnswerShow Answer

What is one way to determine whether a given cell in the primary visual cortex is "simple" or "complex"?

Correct AnswerverifiedShow Answer

Which of the following would be easiest for someone who is motion blind?

Correct AnswerverifiedShow Answer

Someone with prosopagnosia has difficulty with ____.

Correct AnswerverifiedShow Answer

Photopigments are stable in the dark.

Correct AnswerverifiedShow Answer

The primary visual cortex sends its information ____.

Correct AnswerverifiedShow Answer

Professor Hancock is giving a lecture about peripheral vision. Which is the most likely to say?

Correct AnswerverifiedShow Answer

What type of cell responds to a pattern of light in a particular orientation anywhere within its large receptive field, regardless of the exact location of the stimulus?

Correct AnswerverifiedShow Answer

____ are chemicals that release energy when struck by light.

Correct AnswerverifiedShow Answer

Johannes Müller held that whatever excites a particular nerve establishes a special kind of energy unique to that nerve.

Correct AnswerverifiedShow Answer

Light enters the eye through an opening in the center of the iris called the ____.

Correct AnswerverifiedShow Answer

According to the trichromatic theory, we can perceive only three colors.

Correct AnswerverifiedShow Answer

Which cell responds most strongly to a stimulus moving perpendicular to its axis?

Correct AnswerverifiedShow Answer

The receptive field of a receptor is the ____.

Correct AnswerverifiedShow Answer

Chemicals that release energy when struck by light are called ____.

Correct AnswerverifiedShow Answer

Astigmatism refers to the ____.

Correct AnswerverifiedShow Answer

What would be the likely outcome of a person who was blind at birth, and had vision restored later in life by the removal of cataracts (clouded lenses) ?

Correct AnswerverifiedShow Answer

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Jamison is unable to recognize...
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