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27. Taylor has been deprived of sleep for several nights. She 34. Which of the following best represents an absolute threshold?
is now showing increasing amounts of paradoxical sleep. a. A guitar player knows that his D string has just gone
This increase indicates that she is experiencing which of out of tune.
the following? b. A photographer can tell that the natural light
a. Circadian rhythms c. Sleep apnea available for a photograph has just faded slightly.
b. Narcolepsy d. REM rebound c. Your friend amazes you by correctly identifying
unlabeled glasses of Coke and Pepsi.
28. While engaged in an argument with his brother, a man
suddenly falls asleep. With which sleep disorder is he d. A cook can just barely taste the small amount of salt
most likely to be diagnosed? she has added to her soup.
Distributed by Bedford, Freeman & Worth Publishers. Not for redistribution.
a. Sleep apnea 35. Jude’s hammer, anvil, and stirrup were activated. Which
b. REM sleep behavior disorder sensory process were they involved in?
c. Sleepwalking a. Processing information related to his sense of balance
d. Narcolepsy b. Transmitting light energy to ganglion cells
c. Transmitting sound waves to the cochlea
29. Ama’s physician has encouraged her to relax before bed-
time, using dimmer light. Her physician is advising her to d. Smelling the foul odors of a locker room
a. manage her stress better. 36. Which of the following might result from a disruption of
b. improve her sleep hygiene. your vestibular sense?
c. improve her coping skills. a. Inability to detect the position of your arm without
d. enhance her cognitive skills. looking at it
b. Loss of the ability to detect bitter tastes
30. After reading the textbook, Gerard excitedly told his
mother that the iris‘ primary function is to c. Dizziness and a loss of balance
d. An inability to detect pain
a. focus light on the retina.
37. Because of the repeated exposure to loud noise they ex-
b. process color. Copyright © Bedford, Freeman & Worth Publishers.
c. allow light into the eye. perience daily, airport ground workers are most suscepti-
d. enable night vision. ble to damage to which of the following?
a. Olfactory nerve c. Ganglion cells
31. In explaining signal detection theory to his class,
Dr. Neufeld should say which of the following? b. Cochlea d. Bipolar cells
a. Difference thresholds are based on a ratio. 38. Which of the following is the best example of sensory
b. Various factors determine whether a person will interaction?
detect a faint stimulus. a. Simultaneous exposure to warm and cold produces
c. A person’s absolute threshold is stable across situations. the skin sensation of hot.
d. Detection of all stimuli runs through the thalamus. b. Some cones have the ability to detect red and green,
or blue and yellow, light.
32. Which of the following is most likely to influence your
memory of a physically painful event? c. You notice a slight flicker of a light when a sound
accompanies it.
a. The overall length of the event d. Pitch perception is explained by the frequency and
b. The intensity of pain at the end of the event place theories.
c. The amount of rest you’ve had in the 24 hours
preceding the event 39. After looking at a yellow, black, and green American flag
d. The specific part of the body that experiences the pain for a minute, you shift your gaze to a white wall. Which of
the following theories best explains why you “see” a red,
33. Nena’s research project is based on the theory that the white, and blue flag when looking at the white wall?
rate of nerve impulses traveling up the auditory nerve
matches the frequency of a tone, thus enabling us to a. Frequency theory
sense its pitch. Which theory is her project based on? b. Young–Helmholtz theory
c. Opponent-process theory
a. Frequency theory d. Ganglion-bipolar theory
b. Place theory
c. Sound localization
d. Gate-control theory

162 Unit 1 Biological Bases of Behavior

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