Perceiving Motion

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Question 1
Free
Multiple Choice

 The patient L.M. (studied by Zihl, et al.) had cortical lesions that affected her motion perception. What was her condition called

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A

prosopagnosia

B

akinetopsia

C

stroboscopia

D

amblyopia

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Question 2
Free
Multiple Choice

 The patient L.M. (studied by Zihl, et al.), who had cortical lesions that affected her motion perception, experienced

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A

no problems pouring a cup of coffee?

B

no difficulty crossing a street

C

difficulty following dialogue

D

only minor social inconveniences

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Question 3
Free
Multiple Choice

 A mouse "freezes" when it sees a cat nearby. This assists the mouse's survival because being motionless reduces _____ .

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A

the attention-attracting effect of motion

B

the effectiveness of camouflage

C

the levels of stress hormones

D

the pheromones the mouse gives off

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Question 4
Free
Multiple Choice

 Camouflage can be interpreted as a problem of _____ .

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A

figure-ground segregation

B

binocular disparity

C

induced movement

D

the waterfall illusion

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Question 5
Free
Multiple Choice

 Movies are to _____ as the waterfall illusion is to _____ .

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A

apparent movement; induced movement

B

real movement; apparent movement

C

movement aftereffects; stroboscopic movement

D

apparent movement; movement aftereffects

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Question 6
Multiple Choice

 Our ability to perceive movement when reading "message boards" that are used in advertising is based on _____ .

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A
apparent movement?
B
movement aftereffects
C
waterfall effects?
D
motion agnosia
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Question 7
Multiple Choice

 Brian looks at the moon and some clouds at night. He perceives the moon moving through the clouds. This is an example of _____ .

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A
induced motion
B
the stroboscopic effect
C
the Reichardt effect
D
the Shedlock effect
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Question 8
Multiple Choice

 Larsen et al. (2006) used fMRI to study the responses of the brain to real and apparent motion and found that _____ .

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A
the pathways overlapped but processing occurred in different brain regions
B
both the pathways and the processing areas were distinct
C
similar regions of the brain were activated for both
D
there was a great deal of idiosyncrasy in the areas involved
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Question 9
Multiple Choice

 As Dore runs through the park, the flow signals that he is moving and not the environment. Gibson calls this _____ .

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A
local disturbances in the optic array
B
deletion in the optic array
C
the global optic flow
D
the bioptic flow
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Question 10
Multiple Choice

 Tom is watching Terri walk across the room. According to Gibson, Tom perceives Terri _____ .

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A
to be moving because her image is moving across his retina
B
to be stationary because the background is stationary
C
to be moving because of a local disturbance in the optic array
D
to be stationary because the background texture is fixed
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Question 11
Multiple Choice

 In addition to describing movement detection in terms of the environment, researchers have proposed different ways to detect movement from a physiological perspective. The Reichardt detector is one solution. Which of the following is the greatest weakness of the Reichardt detector

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A
It only explains motion detection for images that cross the receptors.
B
It only explains how eye movements can be accounted for in motion detection.
C
It only is able to detect lateral movement of stimuli.
D
It operates using excitatory and inhibitory signals.
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Question 12
Multiple Choice

 According to corollary discharge theory, movement is perceived when _____ .

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A
there is a disturbance in the global optic array
B
the comparator receives the corollary discharge signal and image displacement signal simultaneously
C
the comparator receives the corollary discharge signal alone or image displacement signal alone
D
the comparator finds dissimilarities between the local and global optic arrays
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Question 13
Multiple Choice

 Which type of signal is sent from the brain to the eye muscles

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A
image displacement signal
B
ciliary signal
C
motor signal
D
comparator signal
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Question 14
Multiple Choice

 The _____ signal is sent to other areas of the brain relaying the message that a signal has been sent from the motor cortex to the eye muscles. It is analogous to using the "cc" (copy) function in an email.

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A
image displacement
B
ciliary
C
motor
D
corollary discharge
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Question 15
Multiple Choice

 Which of the following is true about the corollary discharge theory

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A
It can explain why you see a bird moving in flight when you are following it with your eyes.
B
It has much behavioral support, but no physiological support yet.
C
It has little behavioral support, but the comparator has been found in the IT cortex.
D
It can explain why an afterimage seems to be stationary as you move your eye to different fixation points.
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Question 16
Multiple Choice

 An afterimage when viewed in the dark appears to move when you move your eyes. The corollary discharge theory predicts this because _____ .

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A
there is an IDS, but not a CDS
B
there is no IDS, but there is a CDS
C
there is no IDS and no CDS
D
there is both IDS and CDS
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Question 17
Multiple Choice

 Percy is injected with a drug that paralyzes his eye muscles. When he is instructed to try to move his eye when looking a stationary scene, his brain is able to send a signal to his eye muscles but he is unable to move his eyes. As a result, he perceives _____ .

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A
no movement, because his eye muscles can't move
B
no movement, because the scene is stationary
C
movement, because there is a CDS and an IDS
D
movement, because there is a CDS, but not an IDS
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Question 18
Multiple Choice

 Mira gently pushes on her eye with her finger. Because her eye muscles push against the force of her finger, which keeps the image in the same location, she perceives the visual scene _____ .

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A
to be jiggling
B
to be stationary
C
to have exaggerated depth
D
to be shrinking
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Question 19
Multiple Choice

 R.W., the man who experienced vertigo when he moved his eyes, suffered cortical damage that eliminated _____ .

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A
corollary discharge signals
B
image movement signals
C
cortical magnification
D
binocular cell firing
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Question 20
Multiple Choice

 The vertigo case of R.W. not only provided evidence for the corollary discharge theory, it revealed the importance of the _____ in producing CDS.

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A
MT area
B
PPA
C
STS
D
MST area
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