AP Sensation and Perception

1.       Sensation is to __________ as perception is to __________.

• Recognizing a stimulus; detecting a stimulus
• Detecting a stimulus; recognizing a stimulus
• Interpreting a stimulus; detecting a stimulus
• Seeing; hearing

Given normal sensory abilities, a person standing atop a mountain on a dark, clear night can see a candle flame atop a mountain 30 miles away. This is a description of vision's:

• Difference threshold
• Just noticeable difference 
• Absolute threshold
• Signal threshold

Weber’s Law states that:

• The absolute threshold for any stimulus is a constant
• The JND for any stimulus is a constant
• The absolute threshold for any stimulus is a constant ration
• The JND for any stimulus is a constant ratio

Which of the following is an example of sensory adaptation?

• Finding the cold water of a swimming pool warmer after you’ve spent a few minutes in it
• Developing an increased sensitivity to salt the more you use it in foods
• Becoming very irritated at the continuous sound of a dripping faucet
• All of the above are examples

  The process by which sensory information is converted into neural energy is:

• Sensory adaptation
• Feature detection
• Signal detection
• Transduction

Wavelength is to ___________ as ___________ is to brightness.

• Hue; intensity
• Intensity; hue
• Frequency; amplitude
• Brightness; hue

Nearsightedness is a condition in which the:

• Lens has become inflexible
• Lens is too thin
• Eyeball is longer than normal
• Eyeball is shorter than normal

The size of the pupil is controlled by the:

• Lens
• Retina
• Cornea
• Iris

Which of the following is the correct order of the structures through which light passes after entering the eye?

• Lens, pupil, cornea, retina
• Pupil, cornea, lens, retina
• Cornea, retina, pupil, lens
• Cornea, pupil, lens, retina

Assuming that the visual systems of humans and other mammals function similarly, you would expect that the retina of a nocturnal mammal (one active only at night) would contain:

• Mostly cones
• Mostly rods
• An equal number of rods and cones
• More bipolar cells than an animal active only during the day