AP Psychology Practice Test: States of Consciousness

This AP Psychology practice test covers states of consciousness. Key topics include sleep, dreaming, hypnosis, and the effects of psychoactive drugs. Try our multiple choice quiz questions to test your knowledge.


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Question 1
What will most likely be influenced by staying up especially late on weekends?

A
Seasonal Affective Disorder
B
Narcolepsy
C
REM rebound
D
Lucid dreaming
E
Circadian rhythm
Question 1 Explanation: 
The correct answer is (E). Circadian rhythms are physical, mental and behavioral changes that follow a roughly 24-hour cycle, responding primarily to light and temperature in an organism’s environment. Activities that alter sleep can negatively influence circadian rhythm.
Question 2
Large, slow brain waves called Delta waves are most associated with which stage of sleep?

A
Stage 1
B
Stage 2
C
Stage 3
D
Stage 4
E
REM Sleep
Question 2 Explanation: 
The correct answer is (D). Although the brain begins emitting delta waves in stage 3 of sleep, in Stage 4, the brain almost exclusively produces delta waves. Stages 3 and 4 are referred to as deep sleep or delta sleep; it is very difficult to wake someone from this state. In deep sleep, there is no eye movement or muscle activity.
Question 3
What drug most commonly inhibits arousal centers?

A
Alcohol
B
Barbiturates
C
Cocaine
D
Hallucinogens
E
Nicotine
Question 3 Explanation: 
The correct answer is (B). Barbiturates are CNS depressants. Their effects can range from weak sedation to complete anesthesia. Because of these effects on the central nervous system, barbiturates are known to inhibit arousal centers.
Question 4
Which of the following statements about the typical pattern of sleep cycles is false?

A
If someone has been sleep-deprived, he or she enters REM sleep sooner after falling asleep than he or she otherwise would.
B
Infants spend more time in REM sleep than do adults.
C
Near the end of a good night’s sleep, a person spends most of his or her time in Stages 1, 2, and REM.
D
The first stage of sleep is Stage 1.
E
We most often naturally awaken during Stage 4 sleep.
Question 4 Explanation: 
The correct answer is (E). Stage 4 is actually the deepest, most restorative stage of sleep. We are least likely to naturally wake up during Stage 4 sleep. All the other statements are true.
Question 5
During which stage of sleep are EEG recordings most similar to those during alert, awake periods, giving this stage its nickname, “paradoxical sleep?”

A
REM Sleep
B
Stage 1
C
Stage 2
D
Stage 3
E
Stage 4
Question 5 Explanation: 
The correct answer is (A). REM sleep is physiologically different form the other four sleep stages. Among these differences is the similarity between the brain activity during REM sleep and the brain activity during alert periods.
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