Question 1

If they were all moving at the same rate, which of the following would seem to be moving most quickly?

Accepted Answer

A)  a pick-up truck 
B)  an airliner 
C)  a locomotive 
D)  a ride-on lawn mower

Question 2

One possible reason the frontal lobe is involved in perceiving biological motion is

Accepted Answer

A)  it mediates complex cognitive judgments. 
B)  it mediates the motor commands to mimic the motion. 
C)  it mediates the eye movements to follow the motion. 
D)  none of these

Question 3

Do we have to learn to see biological motion? Support your answer with evidence.

Accepted Answer

The answer of Do we have to learn to see...

Question 4

Describe how cooperative and competitive interactions result in the perception of global motion.

Accepted Answer

The answer of Describe how cooperative and competitive interactions result...

Question 5

Bonneh, Cooperman, and Sagi (2001) discovered motion-induced blindness, in which

Accepted Answer

A)  a moving array of blue random dots can make highly-visible yellow spots disappear and reappear. 
B) a moving array of blue random dots presented to one eye can make highly visible yellow spots presented to the other eye disappear and reappear. 
C) both a moving array of blue random dots can make highly-visible yellow spots disappear and reappear and a moving array of blue random dots presented to one eye can make highly visible yellow spots presented to the other eye disappear and reappear. 
D) neither a moving array of blue random dots can make highly-visible yellow spots disappear and reappear nor a moving array of blue random dots presented to one eye can make highly visible yellow spots presented to the other eye disappear and reappear.

Question 6

The relationship between flicker frequency and sensitivity to it can be described as:

Accepted Answer

A)  linear increase 
B)  linear decrease 
C)  U-shaped 
D)  an inverted U

Question 7

The tendency to see a common direction of motion even when many individual elements move in random directions provides evidence that motion perception involves

Accepted Answer

A)  unreliable motion detection neurons. 
B)  independent, local motion detectors. 
C)  activity in area MT. 
D)  cooperative/competitive interactions.

Question 8

What kind of motion is the medial temporal region of the cerebral cortex sensitive to?

Accepted Answer

A)  global motion over large areas of the visual field 
B)  fine detailed motion 
C)  random motion 
D)  The MT is insensitive to motion.

Question 9

When you execute a saccade, your vision

Accepted Answer

A)  is blurred. 
B)  remains clear. 
C)  is suppressed. 
D)  none of these

Question 10

A key brain area in the processing of visual motion information is

Accepted Answer

A)  the MT region. 
B)  the parietal cortex. 
C)  the superior colliculus. 
D)  the frontal cortex

Question 11

Which of the following is NOT true of an optic flow field?

Accepted Answer

A)  It can be used to determine heading. 
B)  It can be used to judge time of arrival. 
C)  It is perceived differently by young and older adults. 
D)  All of these are true.

Question 12

The human visual system seems to be most sensitive to flicker of approximately

Accepted Answer

A)  2 Hz. 
B)  10 Hz. 
C)  30 Hz. 
D)  60 Hz.

Question 13

When schizophrenic individuals look at pictures of faces of people portraying neutral and emotional expressions, their eye fixations

Accepted Answer

A)  tend to dwell on the eyes and mouth. 
B)  are longer than those of people without schizophrenia. 
C)  are briefer than those of people without schizophrenia. 
D)  tend to avoid the eyes and mouth.

Question 14

An area within the superior temporal sulcus is involved in processing biological motion. We know this because

Accepted Answer

A)  neurons within this area are robustly activated by viewing point-light animation sequences depicting
Biological motion. 
B)  neurons within this area are not activated by viewing the same sequences in which the dots have been scrambled in position. 
C)  neurons within this area are not activated by viewing dot animations portraying nonbiological objects. 
D)  all of these

Question 15

The highest rate of flicker that can be perceived is referred to as

Accepted Answer

A)  critical flicker frequency. 
B)  visual masking. 
C)  optimal temporal-frequency modulation. 
D)  none of these

Question 16

If you observe motion in one particular direction for several minutes you will be

Accepted Answer

A)  less sensitive to movement in the same direction. 
B)  more sensitive to movement in the same direction. 
C)  more sensitive to movement at 90 degrees from that direction. 
D)  less sensitive to movement at 90 degrees from that direction.

Question 17

The work by Johansson revealed that observers are capable of correctly identifying an actor's motion based only on points of light attached to the major joints of the body. This capability has been referred to as

Accepted Answer

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

Question 18

What is the aperture problem, and how does the visual system resolve it?

Accepted Answer

The answer of What is the aperture problem, and how...

Question 19

A visual event involves changes

Accepted Answer

A)  over time. 
B)  in space. 
C)  in recollection. 
D)  both over time and in space.

Question 20

If a rapidly moving object of low contrast is presented during a saccade, observers are

Accepted Answer

A)  unlikely to report seeing it. 
B)  likely to report seeing it. 
C)  likely to report seeing it if it is large. 
D)  likely to report seeing it if it is small.

Exam 9: Action and the Perception of Events