Question 1

A leading theory of phantom limb pain holds that this experience is due to

Accepted Answer

A) memories of previous pain. 
B) leftover nerve endings in the missing body part. 
C) the rewiring of the brain after the loss of input from the lost limb. 
D) the release of inflammatory substances that trigger the pain response.

Question 2

Without ________________,we could cut our arm with a knife and feel nothing more than the slight pressure of the blade.

Accepted Answer

A) acuity 
B) haptics 
C) kinesthesis 
D) nociception

Question 3

In addition to the stimulus intensity,an individual's response is also impacted by many psychological factors.Researchers proposed the ____________ to study the perception of stimuli,while taking into consideration the judgement of the individual.

Accepted Answer

A) signal detection theory 
B) difference threshold 
C) absolute threshold 
D) intensity theory

Question 4

The process by which rods and cones become more sensitive to light in response to lowered levels of illumination is called

Accepted Answer

A) dark transduction. 
B) light adaptation. 
C) dark adaptation. 
D) sensory adaptation.

Question 5

In a signal detection task,the participant says that she detected a signal and a signal was present.This is called a

Accepted Answer

A) hit. 
B) false alarm. 
C) miss. 
D) correct rejection.

Question 6

The __________ is the midbrain structure involved with sound localization.

Accepted Answer

A) inferior colliculus 
B) auditory cortex 
C) vestibular sac 
D) ampulla

Question 7

Light,a central player in our visual perception of the world,is a form of

Accepted Answer

A) chemical energy. 
B) mechanical energy. 
C) vibration. 
D) electromagnetic energy.

Question 8

According to the gate-control theory of pain,which of the following would be an effective way to decrease the pain of banging your elbow?

Accepted Answer

A) jumping up and down 
B) rubbing the area around it 
C) seeing someone else in pain 
D) thinking happy thoughts

Question 9

Prosopagnosia is defined as

Accepted Answer

A) difficulty seeing objects at a distance. 
B) difficulty seeing objects up close. 
C) the inability to perceive depth. 
D) the inability to recognize faces.

Question 10

The ______________ carries sensory information from the retina to the brain areas where visual perception will occur.

Accepted Answer

A) fovea 
B) layer of photoreceptors 
C) optic nerve 
D) optic disc

Question 11

When scuba divers take red objects underwater,they appear to lose their colour,but this does not happen to bluish objects.This demonstrates that water filters out light waves that have

Accepted Answer

A) long wavelengths. 
B) short wavelengths. 
C) a high amplitude. 
D) a low amplitude.

Question 12

Once sound waves have been converted into neural activity,the ___________ carry them to the brain for auditory perception.

Accepted Answer

A) auditory nerves 
B) basilar membranes 
C) vestibular nerves 
D) ampullas

Question 13

Which of the following is true of the fovea?

Accepted Answer

A) It contains the highest concentration of rods. 
B) It contains the highest concentration of cones. 
C) It contains no photoreceptors. 
D) It is also known as the optic disc.

Question 14

Shane is looking at a photograph taken by his friend Lise.The image shows a long straight road,with the edges of the road appearing to converge at the horizon.This illustrates

Accepted Answer

A) linear perspective. 
B) interposition. 
C) height in plane. 
D) relative size.

Question 15

Athena notices some coins on the table,clustered into a group of 6 and a group of 10.Athena perceives the coins as two "groups" rather than as one group of 16 coins.This is an example of the Gestalt law of

Accepted Answer

A) figure-ground. 
B) similarity. 
C) proximity. 
D) closure.

Question 16

When we look at a white house,we can recognize it as a white house by day or night and from any angle.This is due to

Accepted Answer

A) the law of closure. 
B) perceptual constancy. 
C) the perception of relative size. 
D) the law of continuity.

Question 17

While riding on a train,David notices that the trees and telephone poles close to the tracks seem to flash by,while the buildings,trees,and mountains that are farther away seem to move by more slowly.This phenomenon is called

Accepted Answer

A) size constancy. 
B) retinal disparity. 
C) motion parallax. 
D) motion differential.

Question 18

Which of the following depth cues requires the use of both eyes?

Accepted Answer

A) interposition 
B) motion parallax 
C) retinal disparity 
D) linear perspective

Question 19

The trichromatic theory states that

Accepted Answer

A) humans can perceive colour due to three types of cones,each of which responds to a pair of opposing colours. 
B) three types of feature detectors in the visual cortex are responsible for colour perception. 
C) three types of cones exist,each sensitive to a certain range of wavelengths. 
D) three types of rods exist,each sensitive to a certain range of wavelengths.

Question 20

Tyrone has good vision and can easily recognize common objects.However,he often relies on the sound of voices,rather than facial appearance,to be certain he is talking to one of his friends or family.Tyrone suffers from a rare disease called

Accepted Answer

A) face pareidolia. 
B) prosopagnosia. 
C) perceptual constancy deficit. 
D) fusiform degredation.

Exam 4: C: Sensation and Perception