Question 1

Professor Toomer tells his class that all of the following influence eye color except

Accepted Answer

A)  the amount of melanin in the iris. 
B)  reflection of light by the blood vessels and tissue in the iris. 
C)  absorption of light by the blood vessels and tissue in the iris. 
D)  the thickness of the cornea. 
A)  the amount of melanin in the iris. 
B)  reflection of light by the blood vessels and tissue in the iris. 
C)  absorption of light by the blood vessels and tissue in the iris. 
D)  the thickness of the cornea. D

Question 2

What is the approximate ratio of on-center bipolar cells to off-center bipolar cells in the human retina?

Accepted Answer

A)  1:1 
B)  2:1 
C)  5:1 
D)  10:1 
A)  1:1 
B)  2:1 
C)  5:1 
D)  10:1 A

Question 3

Retinal disparity is when the two eyes send _____ and allows us to see ____.

Accepted Answer

A)  two completely different images; movement 
B)  two completely different images; depth 
C)  slightly overlapping images; depth 
D)  slightly overlapping images; movement 
A)  two completely different images; movement 
B)  two completely different images; depth 
C)  slightly overlapping images; depth 
D)  slightly overlapping images; movement C

Question 4

Trevor is studying for a quiz. He writes in his notes that the superior colliculus is needed for

Accepted Answer

A)  setting circadian rhythms. 
B)  recognizing faces of people he knows. 
C)  guiding visual movements. 
D)  being able to see color. 
A)  setting circadian rhythms. 
B)  recognizing faces of people he knows. 
C)  guiding visual movements. 
D)  being able to see color.

Question 5

The axons of which type of cell form the optic nerve?

Accepted Answer

A)  bipolar 
B)  amacrine 
C)  ganglion 
D)  horizontal 
A)  bipolar 
B)  amacrine 
C)  ganglion 
D)  horizontal

Question 6

In which of the following ways do ganglion cells differ from the other cells in the retina?

Accepted Answer

A)  They are active only when light is present. 
B)  They produce graded potentials instead of conventional action potentials. 
C)  They produce conventional action potentials instead of graded potentials. 
D)  They contain larger quantities of photopigment. 
A)  They are active only when light is present. 
B)  They produce graded potentials instead of conventional action potentials. 
C)  They produce conventional action potentials instead of graded potentials. 
D)  They contain larger quantities of photopigment.

Question 7

Photoreceptors release which of the following neurotransmitters when depolarized?

Accepted Answer

A)  substance P 
B)  serotonin 
C)  gamma-aminobutyric acid (GAB
A)  
D)  glutamate 
A)  substance P 
B)  serotonin 
C)  gamma-aminobutyric acid (GAB
A)  
D)  glutamate

Question 8

Cone photopigments differ from rhodopsin in that they

Accepted Answer

A)  respond to black and white as opposed to color. 
B)  require more light before breaking apart. 
C)  take longer to synthesize. 
D)  are not contained in the photoreceptor outer segment. 
A)  respond to black and white as opposed to color. 
B)  require more light before breaking apart. 
C)  take longer to synthesize. 
D)  are not contained in the photoreceptor outer segment.

Question 9

When Tana stares directly at an object, the light from that object is projected onto the center of her

Accepted Answer

A)  optic disk. 
B)  anterior chamber. 
C)  sclera. 
D)  macula. 
A)  optic disk. 
B)  anterior chamber. 
C)  sclera. 
D)  macula.

Question 10

Samuel lost vision in his right eye due to an accident. Samuel must use great care while driving because his

Accepted Answer

A)  color vision has been distorted. 
B)  depth perception will not be as accurate as before his accident. 
C)  peripheral vision is no longer functional. 
D)  scotopic vision will be distorted. 
A)  color vision has been distorted. 
B)  depth perception will not be as accurate as before his accident. 
C)  peripheral vision is no longer functional. 
D)  scotopic vision will be distorted.

Question 11

Rhodopsin absorbs photons most effectively from wavelengths that appear

Accepted Answer

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

Question 12

Jennifer has been assessing the rate at which neurotransmitters are being released by a population of rods. So far she has observed a very low rate of release, which most likely means that the rods are

Accepted Answer

A)  completely in the dark. 
B)  being exposed to dim light. 
C)  being exposed to bright light. 
D)  no longer functioning normally. 
A)  completely in the dark. 
B)  being exposed to dim light. 
C)  being exposed to bright light. 
D)  no longer functioning normally.

Question 13

Myles has hyperopia and his sister has myopia. What is occurring with their visual abilities?

Accepted Answer

Myles is farsighted meaning that he cann

Question 14

Which of the following cells form a system that lies parallel to the back of the eye and integrates information across the surface of the retina?

Accepted Answer

A)  bipolar cells and ganglion cells 
B)  photoreceptors and bipolar cells 
C)  horizontal cells and amacrine cells 
D)  amacrine cells and ganglion cells 
A)  bipolar cells and ganglion cells 
B)  photoreceptors and bipolar cells 
C)  horizontal cells and amacrine cells 
D)  amacrine cells and ganglion cells

Question 15

Binocular cells respond most vigorously when

Accepted Answer

A)  a grating appears different than a uniformly colored disk. 
B)  an object is moving. 
C)  when a person is scanning a painting that uses perspective to achieve an impression of depth. 
D)  both eyes are looking at the same feature of an object. 
A)  a grating appears different than a uniformly colored disk. 
B)  an object is moving. 
C)  when a person is scanning a painting that uses perspective to achieve an impression of depth. 
D)  both eyes are looking at the same feature of an object.

Question 16

A sweater looks blue because it has properties that

Accepted Answer

A)  reflect short wavelengths while absorbing longer wavelengths. 
B)  reflect long wavelengths while absorbing shorter wavelengths. 
C)  refract short wavelengths while absorbing longer wavelengths. 
D)  refract long wavelengths while absorbing shorter wavelengths. 
A)  reflect short wavelengths while absorbing longer wavelengths. 
B)  reflect long wavelengths while absorbing shorter wavelengths. 
C)  refract short wavelengths while absorbing longer wavelengths. 
D)  refract long wavelengths while absorbing shorter wavelengths.

Question 17

Small black print on a white background is an example of a stimulus with _________ frequency and _________ contrast.

Accepted Answer

A)  high; high 
B)  high; low 
C)  low; high 
D)  low; low 
A)  high; high 
B)  high; low 
C)  low; high 
D)  low; low

Question 18

Antagonistic center-surround organization means that

Accepted Answer

A)  photoreceptors in the fovea will suppress input from photoreceptors in the periphery of the eye. 
B)  photoreceptors in the periphery of the eye will suppress input from photoreceptors in the fovea. 
C)  light falling on the center of a receptive field has the opposite effect than light falling on the surround. 
D)  light falling on the center of a receptive field has the identical effect as light falling on the surround. 
A)  photoreceptors in the fovea will suppress input from photoreceptors in the periphery of the eye. 
B)  photoreceptors in the periphery of the eye will suppress input from photoreceptors in the fovea. 
C)  light falling on the center of a receptive field has the opposite effect than light falling on the surround. 
D)  light falling on the center of a receptive field has the identical effect as light falling on the surround.

Question 19

Professor Savedra tells his class that the human eye contains around _____ million cones.

Accepted Answer

A)  3 
B)  100 
C)  150 
D)  300 
A)  3 
B)  100 
C)  150 
D)  300

Question 20

Photoreceptors absorb light in their

Accepted Answer

A)  axons. 
B)  dendrites. 
C)  outer segments. 
D)  inner segments. 
A)  axons. 
B)  dendrites. 
C)  outer segments. 
D)  inner segments.

Professor Toomer tells his class that all of the following influence eye color except

What is the approximate ratio of on-center bipolar cells to off-center bipolar cells in the human retina?

Retinal disparity is when the two eyes send _ and allows us to see .

Trevor is studying for a quiz. He writes in his notes that the superior colliculus is needed for

The axons of which type of cell form the optic nerve?

In which of the following ways do ganglion cells differ from the other cells in the retina?

Photoreceptors release which of the following neurotransmitters when depolarized?

Cone photopigments differ from rhodopsin in that they

When Tana stares directly at an object, the light from that object is projected onto the center of her

Samuel lost vision in his right eye due to an accident. Samuel must use great care while driving because his

Rhodopsin absorbs photons most effectively from wavelengths that appear

Jennifer has been assessing the rate at which neurotransmitters are being released by a population of rods. So far she has observed a very low rate of release, which most likely means that the rods are

Myles has hyperopia and his sister has myopia. What is occurring with their visual abilities?

Which of the following cells form a system that lies parallel to the back of the eye and integrates information across the surface of the retina?

Binocular cells respond most vigorously when

A sweater looks blue because it has properties that

Small black print on a white background is an example of a stimulus with _ frequency and _ contrast.

Antagonistic center-surround organization means that

Professor Savedra tells his class that the human eye contains around _____ million cones.

Photoreceptors absorb light in their

What Is Behavioral Neuroscience?

Functional Neuroanatomy and the Evolution of the Nervous System

Neurophysiology: The Structure and Functions of the Cells of the Nervous System

Psychopharmacology

Genetics and the Development of the Human Brain

Nonvisual Sensation and Perception

Movement

Homeostasis, Motivation, and Reward

Sexual Behavior

Sleep and Waking

Learning and Memory

Cognition

Emotion, Aggression, and Stress

Neuropsychology

Psychopathology

Filters

Exam 6: Vision

Professor Toomer tells his class that all of the following influence eye color except

What is the approximate ratio of on-center bipolar cells to off-center bipolar cells in the human retina?

Retinal disparity is when the two eyes send _____ and allows us to see ____.

Trevor is studying for a quiz. He writes in his notes that the superior colliculus is needed for

The axons of which type of cell form the optic nerve?

In which of the following ways do ganglion cells differ from the other cells in the retina?

Photoreceptors release which of the following neurotransmitters when depolarized?

Cone photopigments differ from rhodopsin in that they

When Tana stares directly at an object, the light from that object is projected onto the center of her

Samuel lost vision in his right eye due to an accident. Samuel must use great care while driving because his

Rhodopsin absorbs photons most effectively from wavelengths that appear

Jennifer has been assessing the rate at which neurotransmitters are being released by a population of rods. So far she has observed a very low rate of release, which most likely means that the rods are

Myles has hyperopia and his sister has myopia. What is occurring with their visual abilities?

Which of the following cells form a system that lies parallel to the back of the eye and integrates information across the surface of the retina?

Binocular cells respond most vigorously when

A sweater looks blue because it has properties that

Small black print on a white background is an example of a stimulus with _________ frequency and _________ contrast.

Antagonistic center-surround organization means that

Professor Savedra tells his class that the human eye contains around _____ million cones.

Photoreceptors absorb light in their

What Is Behavioral Neuroscience?

Functional Neuroanatomy and the Evolution of the Nervous System

Neurophysiology: The Structure and Functions of the Cells of the Nervous System

Psychopharmacology

Genetics and the Development of the Human Brain

Nonvisual Sensation and Perception

Movement

Homeostasis, Motivation, and Reward

Sexual Behavior

Sleep and Waking

Learning and Memory

Cognition

Emotion, Aggression, and Stress

Neuropsychology

Psychopathology

Filters

Retinal disparity is when the two eyes send _ and allows us to see .

Small black print on a white background is an example of a stimulus with _ frequency and _ contrast.