AP Psychology 1.5: Sleep
Practice AP Psychology 1.5 questions on REM sleep, sleepwalking, circadian rhythms, dreaming, and how sleep stages affect waking behavior.
- Syllabus
- Effective Fall 2025
- Course
- AP Psychology
Exam points
- Explain how circadian rhythms, sleep stages and disruption affect behavior, memory and mental processes.
- Distinguish REM sleep from sleepwalking using muscle paralysis and movement evidence.
Covered syllabus points
1.5 Sleep question 1
[Maximum number: 1]
Ruth is bored at home alone, so she decides to watch a scary movie. At the most tense part of the movie, when
a large, scary-looking creature is being chased through the village by an angry mob, Ruth's roommate Lynn
comes home unexpectedly and flips on the lights. Ruth is startled and spills her hot chocolate on herself.
Part C
The next morning, Lynn tells Ruth that she saw her sleepwalking and she must have been acting out a
dream of being chased by the creature.
- Explain why Lynn's assumption is likely incorrect.
The response must indicate that the assumption is likely incorrect because during REM sleep the body is paralyzed, immobile, etc. OR The response must indicate that sleepwalking and dreaming typically occur in different stages of sleep. Acceptable explanations include: - It is highly unlikely that Ruth was in REM sleep because during REM sleep the muscles of the body are paralyzed, so she wouldn't be able to walk around. Unacceptable explanations include: - Lynn's assumption is incorrect because if Ruth was acting out a dream of being chased, she would be running around, not walking slowly. & 1 point
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