KEY CONCEPT QUIZ

Question 4.1

Sensation involves ____________, whereas perception involves ____________.

  1. organization; coordination

  2. stimulation; interpretation

  3. identification; translation

  4. comprehension; information

b

Question 4.2

What process converts physical signals from the environment into neural signals carried by sensory neurons into the central nervous system?

  1. representation

  2. identification

  3. propagation

  4. transduction

d

Question 4.3

The smallest intensity needed to just barely detect a stimulus is called

  1. proportional magnitude.

  2. absolute threshold.

  3. just noticeable difference.

  4. Weber’s law.

b

Question 4.4

The world of light outside the body is linked to the world of vision inside the central nervous system by the

  1. cornea.

  2. lens.

  3. retina.

  4. optic nerve.

c

Question 4.5

Light striking the retina, causing a specific pattern of response in the three cone types, leads to our ability to see

  1. motion.

  2. colours.

  3. depth.

  4. shadows.

b

Question 4.6

In which part of the brain is the primary visual cortex, where encoded information is systematically mapped into a representation of the visual scene?

  1. the thalamus

  2. the lateral geniculate nucleus (LGN)

  3. the fovea

  4. area V1

d

Question 4.7

Our ability to visually combine details so that we perceive unified objects is explained by

  1. feature-integration theory.

  2. illusory conjunction.

  3. synesthesia.

  4. ventral and dorsal streaming.

a

Question 4.8

The idea that specialized brain areas represent particular classes of objects is

  1. the modular view.

  2. attentional processing.

  3. distributed representation.

  4. neuron response.

a

Question 4.9

The principle of ______________ holds that even as sensory signals change, perception remains consistent.

  1. apparent motion

  2. signal detection

  3. perceptual constancy

  4. closure

c

Question 4.10

Image-based and parts-based theories both involve the problem of

  1. motion detection.

  2. object identification.

  3. separating figure from ground.

  4. judging proximity.

b

Question 4.11

What kind of cues are relative size and linear perspective?

  1. motion-based

  2. binocular

  3. monocular

  4. template

c

Question 4.12

What does the frequency of a sound wave determine?

  1. pitch

  2. loudness

  3. sound quality

  4. timbre

a

Question 4.13

The placement of our ears on opposite sides of the head is crucial to our ability to

  1. localize sound sources.

  2. determine pitch.

  3. judge intensity.

  4. recognize complexity.

a

Question 4.14

The location and type of pain we experience is indicated by signals sent to

  1. the amygdala.

  2. the spinal cord.

  3. pain receptors.

  4. the somatosensory cortex.

d

Question 4.15

What best explains why smells can have immediate and powerful effects?

  1. the involvement in smell of brain centres for emotions and memories

  2. the vast number of olfactory receptor neurons we have

  3. our ability to detect odours from pheromones

  4. the fact that different odorant molecules produce varied patterns of activity

a

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