Question 1

If during a saccade, an object moves and a neighboring object stays stationary but is blanked briefly,

Accepted Answer

A)  the blanked object appears to move and the moving object appears stationary. 
B)  the blanked object appears stationary and the moving object appears to move. 
C)  both objects appear to move together, in the same direction. 
D)  neither object appears to move. 
A)  the blanked object appears to move and the moving object appears stationary. 
B)  the blanked object appears stationary and the moving object appears to move. 
C)  both objects appear to move together, in the same direction. 
D)  neither object appears to move. A

Question 2

The major cause of the inability to see clearly during a saccadic eye movement is most likely

Accepted Answer

A)  blur caused by fast motion. 
B)  suppression. 
C)  accompanying eye blinks. 
D)  loss of accommodation. 
A)  blur caused by fast motion. 
B)  suppression. 
C)  accompanying eye blinks. 
D)  loss of accommodation. B

Question 3

Explain tau. Give the conditions for which it is a useful cue to time to collision. Give the conditions for which it is not a useful cue.

Accepted Answer

Tau, also known as time-to-contact, is a visual cue used by organisms to estimate the time it will take for a moving object to reach a given point. It is a crucial cue for avoiding collisions and navigating through the environment.

Tau is a useful cue to time to collision under certain conditions. These conditions include when the observer is moving towards or away from the object at a constant speed, when the object is moving at a constant speed, and when the object and the observer are on a collision course. In these scenarios, tau provides an accurate estimate of the time it will take for the object to reach the observer or a specific point in the environment.

However, tau is not a useful cue to time to collision in situations where the observer or the object is accelerating or decelerating, when the object is moving in a non-linear path, or when there are sudden changes in the motion of either the observer or the object. In these cases, the information provided by tau may not accurately predict the time to collision, leading to potential miscalculations and errors in collision avoidance.

Overall, tau is a valuable cue for estimating time to collision in specific conditions, but its effectiveness is limited in situations involving non-linear motion and changes in acceleration or deceleration.

Question 4

The perception of biological motion from just a few moving points of light is an example of

Accepted Answer

A)  motion capture. 
B)  point-light motion. 
C)  motion aftereffect. 
D)  critical flicker frequency. 
A)  motion capture. 
B)  point-light motion. 
C)  motion aftereffect. 
D)  critical flicker frequency.

Question 5

The perception of the shape or form of an object based only on limited information, such as points of light attached to the object's surface, is called

Accepted Answer

A)  structure from motion. 
B)  biological motion. 
C)  visual masking. 
D)  none of these 
A)  structure from motion. 
B)  biological motion. 
C)  visual masking. 
D)  none of these

Question 6

According to the work of David Lee (1980), the change in the size of an object informs the observer of

Accepted Answer

A)  heading. 
B)  observer's speed of motion. 
C)  time-to-contact. 
D)  none of these 
A)  heading. 
B)  observer's speed of motion. 
C)  time-to-contact. 
D)  none of these

Question 7

What are the main two types of eye movements? What role does each play?

Accepted Answer

The main two types of eye movements are

Question 8

According to the textbook, which one of the following disorders may involve compromised processing of information from optic flow?

Accepted Answer

A)  Parkinson's disease 
B)  Alzheimer's disease 
C)  anorexia nervosa 
D)  none of these 
A)  Parkinson's disease 
B)  Alzheimer's disease 
C)  anorexia nervosa 
D)  none of these

Question 9

The aperture problem and the research of Wallach revealed that

Accepted Answer

A)  perceived motion is best understood as local measurements that are integrated. 
B)  perceived motion is best understood in relation to what happens within an isolated receptive field. 
C)  perceived motion is best understood at the level of neurons. 
D)  none of these 
A)  perceived motion is best understood as local measurements that are integrated. 
B)  perceived motion is best understood in relation to what happens within an isolated receptive field. 
C)  perceived motion is best understood at the level of neurons. 
D)  none of these

Question 10

The visual cue we use to time our arrival at, or collision with, an object is

Accepted Answer

A)  the increase in the size of the object's visual image. 
B)  the rate of change of the size of the object's visual image. 
C)  estimated distance to the object divided by the velocity. 
D)  the ratio of the rate of change of the size of the object's visual image to its size. 
A)  the increase in the size of the object's visual image. 
B)  the rate of change of the size of the object's visual image. 
C)  estimated distance to the object divided by the velocity. 
D)  the ratio of the rate of change of the size of the object's visual image to its size.

Question 11

If you quickly shifted your gaze from this question to a neighboring student's paper, what kind of eye movement would you have made?

Accepted Answer

A)  a saccade 
B)  a pursuit movement 
C)  a saltatory movement 
D)  an involuntary movement 
A)  a saccade 
B)  a pursuit movement 
C)  a saltatory movement 
D)  an involuntary movement

Question 12

You are trying out for the college's varsity baseball team. When it's your turn at bat, you do miserably. The coach yells that you should keep your eye on the ball. Explain to the coach the differences (at least three) between saccadic and pursuit eye movements. Tell why the difference between the two types of eye movements is relevant to the coach's advice. Tell the coach why this advice asks you to do the impossible. Finally, give one brief sentence describing how the coach might react.

Accepted Answer

Coach, the differences between saccadic

Question 13

According to the Warren (1998), observers are capable of using an optic flow field to perceive

Accepted Answer

A)  the shape of an object. 
B)  the actions of observers. 
C)  heading. 
D)  none of these 
A)  the shape of an object. 
B)  the actions of observers. 
C)  heading. 
D)  none of these

Question 14

The smooth eye movements used to track a moving object are called

Accepted Answer

A)  saccades. 
B)  pursuit eye movements. 
C)  object tracking movements. 
D)  both pursuit eye movements and object tracking movements. 
A)  saccades. 
B)  pursuit eye movements. 
C)  object tracking movements. 
D)  both pursuit eye movements and object tracking movements.

Question 15

Using computer-generated movies of optic flow patterns, investigators have found that

Accepted Answer

A)  people are poor at judging the direction in which they're heading. 
B)  accurate locomotion requires a complex visual scene. 
C)  older people are more prone to errors in direction judgments. 
D)  none of these 
A)  people are poor at judging the direction in which they're heading. 
B)  accurate locomotion requires a complex visual scene. 
C)  older people are more prone to errors in direction judgments. 
D)  none of these

Question 16

Briefly summarize the two alternative explanations for why the world appears stable when we move our eyes.

Accepted Answer

The two alternative explanations for why

Question 17

The perception of motion is important

Accepted Answer

A)  in enhancing perception of form. 
B)  to the observer's safety. 
C)  both in enhancing perception of form and to the observer's safety. 
D)  neither in enhancing perception of form nor to the observer's safety. 
A)  in enhancing perception of form. 
B)  to the observer's safety. 
C)  both in enhancing perception of form and to the observer's safety. 
D)  neither in enhancing perception of form nor to the observer's safety.

Question 18

The critical flicker frequency has been shown to be

Accepted Answer

A)  10 Hz. 
B)  30 Hz. 
C)  45 Hz. 
D)  60 Hz. 
A)  10 Hz. 
B)  30 Hz. 
C)  45 Hz. 
D)  60 Hz.

Question 19

People who experience ______________ have particular trouble extracting form or shape information from a moving stimulus.

Accepted Answer

A)  Alzheimer's disease 
B)  prosopagnosia 
C)  amnesia 
D)  dyslexia 
A)  Alzheimer's disease 
B)  prosopagnosia 
C)  amnesia 
D)  dyslexia

Question 20

Retinal image expansion associated with movement toward an object is termed ______________ , and the detection of such expansion appears to be _______________.

Accepted Answer

A)  impinging; inborn 
B)  flaring; learned 
C)  image eruption; learned 
D)  looming; inborn 
A)  impinging; inborn 
B)  flaring; learned 
C)  image eruption; learned 
D)  looming; inborn

If during a saccade, an object moves and a neighboring object stays stationary but is blanked briefly,

The major cause of the inability to see clearly during a saccadic eye movement is most likely

Explain tau. Give the conditions for which it is a useful cue to time to collision. Give the conditions for which it is not a useful cue.

The perception of biological motion from just a few moving points of light is an example of

The perception of the shape or form of an object based only on limited information, such as points of light attached to the object's surface, is called

According to the work of David Lee (1980), the change in the size of an object informs the observer of

What are the main two types of eye movements? What role does each play?

According to the textbook, which one of the following disorders may involve compromised processing of information from optic flow?

The aperture problem and the research of Wallach revealed that

The visual cue we use to time our arrival at, or collision with, an object is

If you quickly shifted your gaze from this question to a neighboring student's paper, what kind of eye movement would you have made?

According to the Warren (1998), observers are capable of using an optic flow field to perceive

The smooth eye movements used to track a moving object are called

Using computer-generated movies of optic flow patterns, investigators have found that

Briefly summarize the two alternative explanations for why the world appears stable when we move our eyes.

The perception of motion is important

The critical flicker frequency has been shown to be

People who experience ______________ have particular trouble extracting form or shape information from a moving stimulus.

Retinal image expansion associated with movement toward an object is termed , and the detection of such expansion appears to be _.

Introduction to Perception

The Human Eye

The Eye and Seeing

Central Visual Pathways

Spatial Vision and Patten Perception

Object Perception: Recognizing the Things We See

Color Perception

Seeing a Three-Dimensional World

The Ear and Auditory System

Hearing and Listening

Speech and Music Perception

Touch

Chemical Senses L: Smell

Chemical Senses Ll: Taste

Filters

Exam 9: Action and the Perception of Events

If during a saccade, an object moves and a neighboring object stays stationary but is blanked briefly,

The major cause of the inability to see clearly during a saccadic eye movement is most likely

Explain tau. Give the conditions for which it is a useful cue to time to collision. Give the conditions for which it is not a useful cue.

The perception of biological motion from just a few moving points of light is an example of

The perception of the shape or form of an object based only on limited information, such as points of light attached to the object's surface, is called

According to the work of David Lee (1980), the change in the size of an object informs the observer of

What are the main two types of eye movements? What role does each play?

According to the textbook, which one of the following disorders may involve compromised processing of information from optic flow?

The aperture problem and the research of Wallach revealed that

The visual cue we use to time our arrival at, or collision with, an object is

If you quickly shifted your gaze from this question to a neighboring student's paper, what kind of eye movement would you have made?

According to the Warren (1998), observers are capable of using an optic flow field to perceive

The smooth eye movements used to track a moving object are called

Using computer-generated movies of optic flow patterns, investigators have found that

Briefly summarize the two alternative explanations for why the world appears stable when we move our eyes.

The perception of motion is important

The critical flicker frequency has been shown to be

People who experience ______________ have particular trouble extracting form or shape information from a moving stimulus.

Retinal image expansion associated with movement toward an object is termed ______________ , and the detection of such expansion appears to be _______________.

Introduction to Perception

The Human Eye

The Eye and Seeing

Central Visual Pathways

Spatial Vision and Patten Perception

Object Perception: Recognizing the Things We See

Color Perception

Seeing a Three-Dimensional World

The Ear and Auditory System

Hearing and Listening

Speech and Music Perception

Touch

Chemical Senses L: Smell

Chemical Senses Ll: Taste

Filters

Retinal image expansion associated with movement toward an object is termed , and the detection of such expansion appears to be _.