Chapter 8: Sensation and Perception Quiz

1. The goal of psychophysics is ____.

A) to understand how stimuli from the world affect the sensory experience

B) to determine the absolute threshold in sensory perception

C) to determine the difference threshold in sensory perception

D) to study the relations between motivation, sensitivity, and decision making in detecting the presence or absence of a stimulus

2. The absolute threshold indicates ____.

A) the minimum amount of difference a person can detect between two stimuli

B) the smallest increase or decrease in the intensity of a stimulus that a person is able to detect

C) the weakest amount of a of stimulus required to produce a response

D) that the stimulus must be detected in the presence of competing stimuli

3. Weber's law states that the ____ the stimulus, the larger the change required for a person to notice that anything has happened to it.

A) smaller

B) weaker

C) larger

D) brighter

4. The signal-detection theory proposes all the following notions EXCEPT ____.

A) a stimulus, or signal, must be detected in the presence of competing stimuli

B) a signal may be difficult to detect due to competing stimuli

C) sensory adaptation allows us to notice differences in sensations and react to changing stimuli

D) the absolute threshold is the amount of a stimulus required to produce a response 50 percent of the time

5. The sensation of kinesthesis comes from receptors in and near the ____, and helps to maintain posture and balance.

A) ear

B) muscles, tendons, and joints

C) brain

D) eyes

6. Which of the following statements about the sense of taste is NOT TRUE?

A) Taste receptors are the only receptors sensitive to chemical molecules.

B) What people taste is greatly affected by their sense of smell.

C) Taste is affected by the sensations of warmth, cold and pressure.

D) Taste is composed of four primary sensory experiences -sour, salty, bitter, and sweet.

7. Receptors in the skin provide the brain with information regarding each of the following EXCEPT ____.

A) warmth

B) pain

C) pressure

D) light

8. When you distinguish an airplane from the sky in which it's flying, you are using ____ perception.

A) perceptual inference

B) figure-ground

C) Gestalt

D) learned

9. Which of the following statements about perception is TRUE?

A) Our perceptual set is the collection of beliefs, expectations, and needs that affect what we perceive.

B) Until children are about 12 months old, depth perception is generally undeveloped.

C) Babies as young as one month old can recognize different faces.

D) Perceptual inference is an innate ability, independent of learning.

10. ____ are created when perceptual cues are distorted so that our brain cannot correctly interpret space, size, and depth cues.

A) monocular depth cues

B) binocular depth cues

C) illusions

D) subliminal messages

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Chapter 8: Sensation and Perception Quiz