AP Psych Ch 4 Sensation & Perception

Racial and ethnic stereotypes can sometimes bias our perceptions of others' behaviors. This best illustrates the impact of

• A. retinal disparity.

• B. interposition.

• C. top-down processing.

• D. perceptual adaptation.

The fact that perceptions involve more than the sum of our sensations best illustrates the importance of:

• A. top-down processing.

• B. interposition.

• C. retinal disparity.

• D. visual capture.

Which of the following is true?

• A. Humans cannot sense stimuli below the absolute threshold.

• B. Humans cannot be affected by stimuli below the absolute threshold at all.

• C. Stimuli presented below the absolute threshold can have a subtle, brief effect on behavior.

• D. Stimuli presented below the absolute threshold exert a strong, powerful effect on behavior.

If you move your watchband up your wrist an inch or so, you will feel it for only a few moments. This best illustrates:

• A. parallel processing.

• B. accommodation.

• C. sensory adaptation.

• D. Weber's law.

As we look at a flower, the intensity of the color we see is related to the light wave’s:

• A. amplitude.

• B. hue.

• C. length.

• D. placement on the spectrum.

The eye’s “blind spot” is related to:

• A. light rays focusing too far in front of the retina.

• B. light rays focusing too far behind the retina.

• C. a cluster of cells around the fovea which contains cones, but no rods.

• D. an area without receptor cells where the optic nerve leaves the eye.

Rather than saying a person is “colorblind,” it would be more accurate to say that the person:

• A. has a blind spot.

• B. lacks red- or green-sensitive cones.

• C. is experiencing an overstimulation of the red- and green-sensitive cones.

• D. has an excess of blue-sensitive cones.

The hammer, anvil, and stirrup are found in the:

• A. middle ear.

• B. inner ear.

• C. cochlea.

• D. outer ear.

What is umami?

• A. a savory, meaty taste sensation for which researchers recently discovered receptors on the tongue

• B. receptors on the tongue that respond only to bitter tastes

• C. receptors on the tongue that allow us to taste nutrients in food, such as proteins and vitamins

• D. a condition in which there is a loss of the sensation of taste

As you talk with a friend at a party, her voice is distinct from all the other voices you hear. This illustrates the perceptual principle of:

• A. grouping.

• B. proximity.

• C. closure.

• D. figure-ground.