Question 1

Which of the following is a reason for the poor acuity of newborns?

Accepted Answer

A)  The rods are not developed at birth. 
B)  Newborns have too much visual pigment in the cones. 
C)  A newborn's rods have very narrow inner segments. 
D)  The visual cortex of the newborn is only partially developed. 
A)  The rods are not developed at birth. 
B)  Newborns have too much visual pigment in the cones. 
C)  A newborn's rods have very narrow inner segments. 
D)  The visual cortex of the newborn is only partially developed.

Question 2

(a) What are the basic properties of action potentials?
(b) How do these properties relate to perception?

Accepted Answer

(a) The basic properties of action poten

Question 3

Which of the following is true about the difference between the rods and the cones?

Accepted Answer

A)  The rods control vision in high illumination conditions, and the cones control vision in low illumination conditions. 
B)  The rods are packed in an area called the fovea, and the cones are found more in the peripheral retina. 
C)  There are about 120 million rods in the human eye and about 5 million cones. 
D)  The only difference between the rods and the cones is physical shape. 
A)  The rods control vision in high illumination conditions, and the cones control vision in low illumination conditions. 
B)  The rods are packed in an area called the fovea, and the cones are found more in the peripheral retina. 
C)  There are about 120 million rods in the human eye and about 5 million cones. 
D)  The only difference between the rods and the cones is physical shape.

Question 4

Cone spectral sensitivity is measured by having the observer

Accepted Answer

A)  look up and blink. 
B)  look straight forward without blinking. 
C)  look directly into a light. 
D)  look to the side of a flashing light. 
A)  look up and blink. 
B)  look straight forward without blinking. 
C)  look directly into a light. 
D)  look to the side of a flashing light.

Question 5

LASIK surgery is used to treat _______ by cutting a small flap in the _________.

Accepted Answer

A)  myopia; cornea 
B)  myopia; lens 
C)  hyperopia; cornea 
D)  presbyopia; lens 
A)  myopia; cornea 
B)  myopia; lens 
C)  hyperopia; cornea 
D)  presbyopia; lens

Question 6

The blind spot is located

Accepted Answer

A)  in the fovea. 
B)  in the vitreous. 
C)  where the optic nerve leaves the eye. 
D)  at the optic chiasm. 
A)  in the fovea. 
B)  in the vitreous. 
C)  where the optic nerve leaves the eye. 
D)  at the optic chiasm.

Question 7

Describe how preferential looking and visual evoked potentials technique have been used to study infant perception.

Accepted Answer

The answer of Describe how preferential looking and visual evoked...

Question 8

Convergence results in _________ sensitivity and _______ acuity.

Accepted Answer

A)  increased; increased 
B)  increased; decreased 
C)  decreased; decreased 
D)  decreased; increased 
A)  increased; increased 
B)  increased; decreased 
C)  decreased; decreased 
D)  decreased; increased

Question 9

As stimulus intensity is increased, recording from a single neuron shows

Accepted Answer

A)  the amplitude of the action potential increases. 
B)  the amplitude of the action potential decreases. 
C)  the amplitude of the action potential may increase or decrease, depending on the stimulus. 
D)  the rate of firing of the nerve fiber increases. 
A)  the amplitude of the action potential increases. 
B)  the amplitude of the action potential decreases. 
C)  the amplitude of the action potential may increase or decrease, depending on the stimulus. 
D)  the rate of firing of the nerve fiber increases.

Question 10

The peak in the spectral sensitivity curve is about _____ for the rods, and about _____ for the cones.

Accepted Answer

A)  700 nm; 400 nm 
B)  450 nm; 800 nm 
C)  500 nm; 560 nm 
D)  600 nm; 450 nm 
A)  700 nm; 400 nm 
B)  450 nm; 800 nm 
C)  500 nm; 560 nm 
D)  600 nm; 450 nm

Question 11

Visible light is between _____ and ____ nm within the electromagnetic spectrum.

Accepted Answer

A)  100; 400 
B)  400; 700 
C)  500; 1000 
D)  900; 1500 
A)  100; 400 
B)  400; 700 
C)  500; 1000 
D)  900; 1500

Question 12

(a) What is the "blind spot"?
(b) Discuss two reasons why we are not usually aware of the blind spot.

Accepted Answer

(a) The "blind spot" refers to the area

Question 13

Jan tries to focus on the tip of her pencil as she brings it closer to her. She feels the strain on her eye as she does this. What she is feeling in her eye is due to the process called

Accepted Answer

A)  inhibition. 
B)  reflection. 
C)  accommodation. 
D)  assimilation. 
A)  inhibition. 
B)  reflection. 
C)  accommodation. 
D)  assimilation.

Question 14

Nina does a demonstration of "seeing" the blind spot, in which a grid pattern surrounds the black dot that disappears when it falls on the blind spot. What does Nina most likely see in the area where the dot disappears?

Accepted Answer

A)  a blurry gray area 
B)  a white circle 
C)  nothing 
D)  a continuation of the grid pattern 
A)  a blurry gray area 
B)  a white circle 
C)  nothing 
D)  a continuation of the grid pattern

Question 15

(a) Draw a graph (with appropriate axis labels) of the dark adaptation curve.
(b) Describe the methodology used to isolate the rod component of the curve, and the cone component.
(c) Discuss how Rushton demonstrated the physiological basis to dark adaptation.

Accepted Answer

(a) The dark adaptation curve is a graph

Question 16

In the early stages of _______, peripheral rod receptors are destroyed leading to poorer peripheral vision.

Accepted Answer

A)  macular degeneration 
B)  retinitis pigmentosa 
C)  presbyopia 
D)  retinal hypopolarization 
A)  macular degeneration 
B)  retinitis pigmentosa 
C)  presbyopia 
D)  retinal hypopolarization

Question 17

Name, define, and discuss the treatment for three kinds of focusing problems.

Accepted Answer

There are three common types of focusing

Question 18

The three major parts of a neuron are

Accepted Answer

A)  dendrites, cell body, and axon. 
B)  axon, nerve fiber, and receptor. 
C)  receptor, transmitter, and median. 
D)  receptor, dendrites, and conductor. 
A)  dendrites, cell body, and axon. 
B)  axon, nerve fiber, and receptor. 
C)  receptor, transmitter, and median. 
D)  receptor, dendrites, and conductor.

Question 19

Vera has hyperopia, and tends to get headaches when she reads. This is because

Accepted Answer

A)  Vera also has presbyopia and has the constant need to accommodate. 
B)  Vera also has myopia and is unable to accommodate. 
C)  Vera has just had LASIK surgery and her ciliary muscles are damaged. 
D)  Vera is 5-years-old and lacks the visual acuity to read. 
A)  Vera also has presbyopia and has the constant need to accommodate. 
B)  Vera also has myopia and is unable to accommodate. 
C)  Vera has just had LASIK surgery and her ciliary muscles are damaged. 
D)  Vera is 5-years-old and lacks the visual acuity to read.

Which of the following is a reason for the poor acuity of newborns?

(a) What are the basic properties of action potentials? (b) How do these properties relate to perception?

Which of the following is true about the difference between the rods and the cones?

Cone spectral sensitivity is measured by having the observer

LASIK surgery is used to treat _ by cutting a small flap in the ___.

The blind spot is located

Describe how preferential looking and visual evoked potentials technique have been used to study infant perception.

Convergence results in ___ sensitivity and _ acuity.

As stimulus intensity is increased, recording from a single neuron shows

The peak in the spectral sensitivity curve is about _ for the rods, and about _ for the cones.

Visible light is between _ and nm within the electromagnetic spectrum.

(a) What is the "blind spot"? (b) Discuss two reasons why we are not usually aware of the blind spot.

Jan tries to focus on the tip of her pencil as she brings it closer to her. She feels the strain on her eye as she does this. What she is feeling in her eye is due to the process called

Nina does a demonstration of "seeing" the blind spot, in which a grid pattern surrounds the black dot that disappears when it falls on the blind spot. What does Nina most likely see in the area where the dot disappears?

(a) Draw a graph (with appropriate axis labels) of the dark adaptation curve. (b) Describe the methodology used to isolate the rod component of the curve, and the cone component. (c) Discuss how Rushton demonstrated the physiological basis to dark adaptation.

In the early stages of _______, peripheral rod receptors are destroyed leading to poorer peripheral vision.

Name, define, and discuss the treatment for three kinds of focusing problems.

The three major parts of a neuron are

Vera has hyperopia, and tends to get headaches when she reads. This is because

Introduction to Perception

Neural Processing and Perception

Cortical Organization

Perceiving Objects and Scenes

Visual Attention

Taking Action

Perceiving Motion

Perceiving Color

Perceiving Depth and Size

Hearing

Auditory Localization and Organization

Speech Perception

The Cutaneous Senses

The Chemical Senses

Filters

Exam 2: The Beginnings of Perception

Which of the following is a reason for the poor acuity of newborns?

(a) What are the basic properties of action potentials? (b) How do these properties relate to perception?

Which of the following is true about the difference between the rods and the cones?

Cone spectral sensitivity is measured by having the observer

LASIK surgery is used to treat _______ by cutting a small flap in the _________.

The blind spot is located

Describe how preferential looking and visual evoked potentials technique have been used to study infant perception.

Convergence results in _________ sensitivity and _______ acuity.

As stimulus intensity is increased, recording from a single neuron shows

The peak in the spectral sensitivity curve is about _____ for the rods, and about _____ for the cones.

Visible light is between _____ and ____ nm within the electromagnetic spectrum.

(a) What is the "blind spot"? (b) Discuss two reasons why we are not usually aware of the blind spot.

Jan tries to focus on the tip of her pencil as she brings it closer to her. She feels the strain on her eye as she does this. What she is feeling in her eye is due to the process called

Nina does a demonstration of "seeing" the blind spot, in which a grid pattern surrounds the black dot that disappears when it falls on the blind spot. What does Nina most likely see in the area where the dot disappears?

(a) Draw a graph (with appropriate axis labels) of the dark adaptation curve. (b) Describe the methodology used to isolate the rod component of the curve, and the cone component. (c) Discuss how Rushton demonstrated the physiological basis to dark adaptation.

In the early stages of _______, peripheral rod receptors are destroyed leading to poorer peripheral vision.

Name, define, and discuss the treatment for three kinds of focusing problems.

The three major parts of a neuron are

Vera has hyperopia, and tends to get headaches when she reads. This is because

Introduction to Perception

Neural Processing and Perception

Cortical Organization

Perceiving Objects and Scenes

Visual Attention

Taking Action

Perceiving Motion

Perceiving Color

Perceiving Depth and Size

Hearing

Auditory Localization and Organization

Speech Perception

The Cutaneous Senses

The Chemical Senses

Filters

LASIK surgery is used to treat _ by cutting a small flap in the ___.

Convergence results in ___ sensitivity and _ acuity.

The peak in the spectral sensitivity curve is about _ for the rods, and about _ for the cones.

Visible light is between _ and nm within the electromagnetic spectrum.