Question 1

Which of the following best describes the process of transduction in sensation?

Accepted Answer

The conversion of a physical stimulus into a neural signal by a sense receptor

Question 2

According to Weber's law, if you are holding a 100g weight, what is the minimum additional weight (just noticeable difference) you must add to notice a difference, assuming the Weber fraction for weight is 0.02?

Accepted Answer

$$0.02 	imes 100 = 2$$ grams

Question 3

Which scenario best illustrates the concept of sensory adaptation?

Accepted Answer

You stop noticing the smell of your perfume after wearing it for a while

Question 4

A person is presented with a faint sound and sometimes reports hearing it, but sometimes does not. According to signal detection theory, what is the term for when the sound is present and the person correctly reports hearing it?

Accepted Answer

True positive (hit)

Question 5

The McGurk effect demonstrates which principle of perception?

Accepted Answer

Sensory integration, where visual and auditory information combine to influence perception

Question 6

Which of the following is an example of a just noticeable difference (JND)?

Accepted Answer

Detecting the difference in brightness between two light bulbs

Question 7

If a person fails to notice a gorilla walking through a basketball game while counting passes, this is an example of:

Accepted Answer

Inattentional blindness

Question 8

Which of the following best illustrates top-down processing?

Accepted Answer

Interpreting a blurry image as a dog because you expect to see a dog

Question 9

A person with synesthesia might:

Accepted Answer

Experience colors when hearing certain sounds

Question 10

Which of the following is NOT a principle of Gestalt psychology?

Accepted Answer

Transduction

Question 11

If the absolute threshold for detecting a scent is 1 part per million (ppm), what does this mean?

Accepted Answer

The person can detect the scent 50% of the time when it is at 1 ppm

Question 12

Which of the following best describes selective attention?

Accepted Answer

Focusing on one sensory input while ignoring others

Question 13

A person is able to read a word even when some of the letters are missing, due to their knowledge of language. This is an example of:

Accepted Answer

Top-down processing

Question 14

Which of the following is an example of bottom-up processing?

Accepted Answer

Identifying an object by analyzing its individual features

Question 15

If a person is able to detect a difference between a 10-watt and a 12-watt light bulb, but not between a 10-watt and an 11-watt bulb, what is the just noticeable difference (JND) in this scenario?

Accepted Answer

2 watts

Question 16

Which of the following best explains why people sometimes fail to notice a change in their environment, such as a new picture on the wall?

Accepted Answer

Change blindness

Question 17

Which of the following is a real-world example of Weber's law?

Accepted Answer

Needing to add more sugar to a very sweet drink to notice a difference than to a barely sweet drink

Question 18

Which of the following best describes the difference between sensation and perception?

Accepted Answer

Sensation is the detection of physical energy; perception is the interpretation of that energy by the brain

Question 19

Which of the following is an example of a cross-modal effect?

Accepted Answer

Hearing a sound and seeing a flash of light, leading to the perception of a new sensation

Question 20

A person is able to focus on a friend's voice at a noisy party, but fails to notice when someone else calls their name from across the room. This is an example of:

Accepted Answer

Selective attention

Chapter 4: Sensation and Perception – Foundations of Sensory Processing

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