Question 1

Which of the following best describes the concept of 'absolute threshold' in sensation?

Accepted Answer

The minimum intensity of a stimulus that can be detected by an individual 50% of the time.

Question 2

A researcher increases the weight of a backpack from 200g to 210g, and a participant notices the change. According to Weber's Law, what is the just-noticeable difference (JND) for this scenario?

Accepted Answer

$$\frac{10}{200} = 0.05 or 5$$%

Question 3

Which theory explains why we see a green afterimage after staring at a red image for a prolonged period?

Accepted Answer

Opponent Process Theory

Question 4

A person with red-green color blindness is most likely missing or malfunctioning which type of photoreceptor?

Accepted Answer

Red or green cones

Question 5

Which structure in the eye is responsible for focusing light onto the retina and can change shape to adjust for near or distant objects?

Accepted Answer

Lens

Question 6

Damage to the cochlea or the auditory nerve results in which type of hearing loss?

Accepted Answer

Sensorineural deafness

Question 7

Which of the following best illustrates sensory interaction?

Accepted Answer

The taste of food being affected when you have a cold and cannot smell

Question 8

A patient is unable to recognize faces but can identify objects and voices. Which condition does this describe?

Accepted Answer

Prosopagnosia

Question 9

Which part of the ear amplifies and transmits vibrations from the eardrum to the cochlea?

Accepted Answer

Ossicles (malleus, incus, stapes)

Question 10

According to the Place Theory of hearing, how do we perceive different pitches?

Accepted Answer

By different parts of the cochlea being activated by different frequencies

Question 11

Which formula represents Weber's Law for just-noticeable difference (JND)?

Accepted Answer

$$JND = k 	imes S$$

Question 12

A person who can only see shades of gray and cannot perceive any color likely has which condition?

Accepted Answer

Monochromacy

Question 13

Which sensory system is primarily responsible for detecting balance and spatial orientation?

Accepted Answer

Vestibular sense

Question 14

Which theory proposes that pain signals can be modulated in the spinal cord by a 'gate' that opens or closes?

Accepted Answer

Gate Control Theory

Question 15

Which of the following is NOT a primary taste detected by taste receptors on the tongue?

Accepted Answer

Spicy

Question 16

Which type of photoreceptor is most sensitive to low light and is responsible for night vision?

Accepted Answer

Rods

Question 17

A person is unable to hear high-frequency sounds due to age-related damage to the inner ear. What type of hearing loss is this?

Accepted Answer

Sensorineural deafness

Question 18

Which process describes the conversion of sensory stimuli into neural signals that the brain can interpret?

Accepted Answer

Transduction

Question 19

Which skin receptor is primarily responsible for detecting temperature changes?

Accepted Answer

Thermoreceptors

Question 20

A person with myopia has difficulty seeing distant objects clearly. Which of the following best explains why?

Accepted Answer

The lens focuses images in front of the retina.

Sensation: Foundations of Sensory Processes in Psychology

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