Chapter 10

Question 1

_______ is a term used to describe conditions in which movements between the two eyes are not coordinated.

Answer 1

Strabismus

Question 2

Merrill watches his finger with both eyes as he brings it closer to his nose. As the finger gets closer, his eyes move inward and he feels his eye muscles working. Which depth cue is associated with the feeling he is getting from his eye muscles?

Answer 2

both accommodation and convergence

Question 3

The key to the Ames Room illusion is

Answer 3

the room is constructed of trapezoids, but looks rectangular to the observer

Question 4

The depth cue of ________ is the most important in the Ponzo (railroad track) illusion.

Answer 4

perspective convergence

Question 5

As Tyler looks down a railroad track, he perceives the sides of the tracks as becoming closer as the distance increases. This is an example of

Answer 5

perspective convergence

Question 6

The size-distance scaling equation is S = K(R x D). The “S” in the equation stands for

Answer 6

an object’s perceived size

Question 7

The correspondence problem is best demonstrated by

Answer 7

random-dot stereograms

Question 8

The depth cue that is responsible for perceiving depth in ViewMasters™ and “3-D” movies is

Answer 8

binocular disparity

Question 9

Blake and Hirsch (1975) use selective rearing of kittens to show that

Answer 9

disparity-selective neurons are responsible for stereopsis

Question 10

Myranda looks at a photograph of a truck. Which of the following best describes how she will perceive this photograph?

Answer 10

Her perception of the size of the truck will depend on the known size of the objects located next to the truck

Question 11

The size-distance scaling equation explains the Ames Room illusion because

Answer 11

we perceive the two people in the room to be different sizes because they are perceived to be at the same distance away and their retinal image size is different

Question 12

Several years ago, Bryce, a fan of the Houston Rockets basketball team, saw the player Yao Ming (who is 7’6” tall) standing next to his coach Jeff VanGundy (who is less than 6 feet tall). Bryce correctly perceived the two men as being the same distance away from her. Which depth cue most influenced her perception?

Answer 12

familiar size

Question 13

Which of the following depth cues is effective both from 0-2 meters and above 30 meters?

Answer 13

occlusion

Question 14

The importance of _______________ is that these stimuli rely solely on binocular disparity to provide the impression of depth.

Answer 14

random dot stereograms

Question 15

________ is the difference in the images in the two eyes; _____ is the impression of depth that results from this information.

Answer 15

Binocular disparity; stereopsis

Question 16

_______ is defined as depth perception created by input from both eyes.

Answer 16

Stereoscopic depth perception

Question 17

Ambrozia is a 4-month-old infant. Which depth cue is she most likely able to use?

Answer 17

binocular disparity

Question 18

Fox et al. (1980) found that the ability to use binocular disparity develops between

Answer 18

3.5 to 6 months

Question 19

A major assumption of the apparent-distance theory of the moon illusion is that the sky overhead

Answer 19

appears to be closer than the horizon because of the lack of depth cues

Question 20

The size-distance scaling equation explains Emmert’s Law because

Answer 20

retinal size is constant as perceived distance changes

Question 21

Individuals suffering from “walleye” and other conditions in which the eyes are misaligned have difficulty with depth perception because

Answer 21

the visual system suppresses vision in one eye in order to avoid having the experience of double vision

Question 22

Deletion and accretion are

Answer 22

effective for detecting depth at an edge

Question 23

When Uka and DeAngelis microstimulated disparity-selective neurons in a monkey, the monkey made a behavioral depth response based on the

Answer 23

tuning curve of the stimulated neurons

Question 24

When your professor stands in back of a podium, you perceive your professor as being further away than the podium because the podium blocks the vision of the professor’s body. This is an example of the depth cue

Answer 24

occlusion

Question 25

The approximate visual angle of the width of your thumb held at arm’s length is ___ degrees.

Answer 25

2.0

Question 26

The ability to use binocular disparity as a depth cue

Answer 26

can be tested using random dot stereograms

Question 27

According to Day’s “conflicting cues theory”, the perception of vertical line lengths depends on

Answer 27

the actual length of the lines and the overall length of the figure

Question 28

An insect is most likely to use ______ to perceive depth.

Answer 28

movement parallax

Question 29

A person create binocular depth in video images by

Answer 29

filming from two slightly displaced positions using polarized light.
filming from two slightly displaced positions using red and green filters.
filming from two slightly displaced positions and alternating between “eyes”

Question 30

According to Gregory’s misapplied size constancy scaling hypothesis, we perceive the “arrows pointing out” version of the Muller-Lyer illusion as

Answer 30

shorter, because it is perceived as being closer

Question 31

Gregory’s misapplied size constancy scaling explanation of the Muller-Lyer illusion

Answer 31

has difficulty in explaining the “dumbbell” version of the illusion

Question 32

Motion Parallax

Answer 32

is widely used to create depth in cartoons and video games

Question 33

A ________ is able to make use of binocular disparity, because it has _______ eyes.

Answer 33

cat; frontal