Biopsych Chapters 9, 11, 15 Flashcards
During sleep, a(n) ______________ is used to measure brain activity.
a. electroencephalogram
b. electromyogram
c. electro-oculogram
d. oximeter probe
e. electroencardiogram
a. electroencephalogram
During periods of wakefulness, brain waves oscillate between __________ and ____________ waves.
a. alpha; beta
b. delta; beta
c. alpha; delta
d. theta; delta
e. gamma; alpha
a. alpha; beta
The various stages of sleep are easily distinguished by
a. visible changes in respiration.
b. changes in motor movements involving speech.
c. changes in the electrical activity of the brain.
d. changes in consciousness.
e. the quality and quantity of dreams.
c. changes in the electrical activity of the brain
The ________ is an instrument used to record electrical potentials from muscles during sleep.
a. myelogram
b. electroencephalogram
c. physiograph
d. electromyogram
e. retinogram
d. electromyogram
An electro-oculogram is an instrument used in sleep studies to measure
a. blood pressure.
b. skin conductance.
c. heart rate.
d. electrical potentials within the brain.
e. eye movements.
e. eye movements.
The ________ pattern of EEG activity is characterized by irregular, high-frequency (13-30 Hz), low-voltage waves.
a. beta
b. alpha
c. theta
d. sleep spindles
e. delta
a. beta
The observation that a person’s brain shows beta wave activity is not a reliable indicator of being awake because
a. this pattern is seen in children but not adults.
b. this brain wave pattern also appears during sleep.
c. this wave form waxes and wanes during the day.
d. it can be induced by certain drugs such as alcohol.
e. drugs can elicit this brain wave pattern.
b. this brain wave pattern also appears during sleep.
As Jenelle is falling asleep, she has a sensation of walking along. Suddenly, her right leg steps into a hole and her foot jerks in bed, seemingly simulating the experienced fall in her sleeping state. These muscle contractions are
a. sleep spindles.
b. K complexes.
c. alpha wave activity.
d. spastic jerks.
e. hypnic jerks.
e. hypnic jerks.
The transition between wakefulness and sleep is marked by the appearance of ________ waves in the sleep record.
a. alpha
b. delta
c. gamma
d. theta
e. beta
d. theta
The theta brain wave pattern is characterized by changes in frequency of electrical activity of
a. 1-3 Hz.
b. 12-14 Hz.
c. 13-30 Hz.
d. less than 3.5 Hz.
e. 3.5-7.5 Hz.
e. 3.5-7.5 Hz.
You are watching the sleep record of a person whose record contains 85% delta wave activity. Your best guess is that this person is
a. in stage 3 of slow-wave sleep.
b. dreaming.
c. in stage 1 of slow-wave sleep.
d. making the transition from wakefulness to sleep.
e. awake.
a. in stage 3 of slow-wave sleep.
Deep sleep is characterized by ____________ waves.
a. alpha
b. beta
c. delta
d. theta
e. gamma
c. delta
As Darius is sleeping, his dog begins to bark. As a result, his brain emits several sudden sharp waveforms known as _____________.
a. hypnic jerks
b. sleep spindles
c. K complexes
d. alpha wave activity
e. delta wave activity
c. K complexes
Which of the following characterizes REM sleep?
a. When woken up in this stage, people are often groggy and confused.
b. When in this stage people are often able to toss and turn on the bed, moving freely.
c. The person experiences dreams.
d. The person experiences vague sensations or feelings.
e. The person’s eyes are still.
c. The person experiences dreams.
Another name for sleep stage 3 is ________ sleep.
a. paradoxical
b. high-frequency
c. slow-wave
d. REM
e. rhythmic
c. slow-wave
Sleep stages 1-3 are termed ________, whereas stages3 is referred to as ________.
a. REM sleep; non-REM sleep
b. non-REM sleep; slow-wave sleep
c. slow-wave sleep; non-REM sleep
d. paradoxical sleep; REM sleep
e. arhythmic sleep; paradoxical sleep
b. non-REM sleep; slow-wave sleep
Which of the following is a key characteristic of REM sleep?
a. alternating delta and beta EEG activities
b. the presence of delta wave EEG activity
c. rapid eye movements
d. alpha wave brain activity
e. tossing and turning in bed
c. rapid eye movements
Which of the following is a reason as to why sleep stage 3 is considered to be the deepest sleep stage?
a. A person in this stage is easily roused by meaningful stimuli.
b. A person who awakes from stage 3 is groggy and confused.
c. A person who awakes from this stage is alert and attentive.
d. Only very loud stimuli will awaken a person from stage 3 sleep.
e. The majority of sleep is spent in stage 3 slow-wave sleep.
b. A person who awakes from stage 3 is groggy and confused.
Which of the following is a key characteristic of non-REM sleep?
a. dreaming in color
b. muscle paralysis
c. genital changes associated with arousal
d. various forms of slow-wave brain activity
e. rapid eye movements
d. various forms of slow-wave brain activity
A single cycle of non-REM and REM sleep lasts about
a. 10 minutes.
b. 30-40 minutes.
c. 90 minutes.
d. 360 minutes.
e. 8 hours.
c. 90 minutes.
Which of the following is true of human sleep cycles?
a. Sleep cycles are random across the night.
b. Subjects first enter REM sleep and then transition to non-REM sleep.
c. As the night goes on, the relative length of REM sleep increases in each successive cycle.
d. Stage 3 of slow-wave sleep mostly occurs in the early morning hours.
e. Each non-REM/REM cycle lasts about 45 minutes.
c. As the night goes on, the relative length of REM sleep increases in each successive cycle.
The predictable changes in blood flow to the male genitals that occur during ________ can be a useful clinical indicator of ________.
a. non-REM sleep; narcolepsy
b. the day hours; hypertension
c. REM sleep; impotence
d. slow-wave sleep; cardiac failure
e. the day hours; cocaine abuse
c. REM sleep; impotence
Humans show which pattern of blood flow and mental activity during REM sleep?
a. Cortical blood flow is reduced during REM sleep as blood is shunted to the genitals.
b. Cerebral blood flow is low in the primary visual cortex.
c. Cerebral blood flow is very low during color dreaming.
d. Cerebral blood flow is high in the visual association cortex and low in the frontal cortex.
e. Cerebral blood flow is low in the primary auditory cortex.
d. Cerebral blood flow is high in the visual association cortex and low in the frontal cortex.
Which of the following terms belong together?
a. awake state; EEG synchrony
b. REM sleep; slow-wave EEG pattern
c. slow-wave sleep; marked genital arousal
d. REM sleep; lack of genital activity
e. slow-wave sleep; moderate muscle tonus
e. slow-wave sleep; moderate muscle tonus