Ch. 4 Sensation and Perception Review

Racial and ethnic stereotypes can sometimes bias our perceptions of other's behavior. This best illustrates the impact of:

• retinal disparity
• interposition
• top-down processing
• perceptual adaptation

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

• top-down processing
• interposition
• retinal disparity
• visual capture

Which of the following is true?

• Humans cannot sense stimuli below the absolute threshold
• Humans cannot be affected by stimuli below the absolute threshold at all
• Stimuli presented below the absolute threshold can have a subtle, brief effect on behavior
• Stimuli presented below the absolute threshold exert a strong, powerful effect on behavior

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

• parallel processing
• accommodation
• sensory adaptation
• Weber's Law

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

• amplitude
• hue
• length
• placement on the spectrum

The eye's "blind spot" is related to:

• light rays focusing too far in front of the retina
• light rays focusing too far behind the retina
• a cluster of cells around the fovea which contains cones, but no rods.
• 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:

• has a blind spot
• lacks red- or green-sensitive cones
• is experiencing an overstimulation of the red-and green-sensitive cones
• has an excess of blue-sensitive cones

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

• middle ear
• inner ear
• cochlea
• outer ear

What is umami?

• a savory, meaty taste sensation for which researchers recently discovered receptors on the tongue
• receptors on the tongue that respond only to bitter tastes
• receptors on the tongue that allow us to taste nutrients in food, succh as proteins and vitamins
• 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:

• grouping
• proximity
• closure
• figure-ground