Stages of Sleep Quiz for AP Psychology: Test Your Knowledge

📚 Quick Study Guide

• ⏱️ Sleep Cycle: A typical sleep cycle lasts about 90 minutes.
• 😴 Stage 1 (NREM 1): Light sleep; easily awakened; may experience hypnic jerks.
• 💤 Stage 2 (NREM 2): Deeper sleep; harder to awaken; characterized by sleep spindles and K-complexes on EEG.
• 💧 Stage 3 (NREM 3): Deepest sleep; very difficult to awaken; characterized by delta waves; sleepwalking and night terrors may occur.
• 🧠 REM Sleep: Rapid eye movement; brain activity similar to wakefulness; dreaming occurs; muscle paralysis.
• 📈 EEG: Electroencephalogram; measures brain electrical activity.
• 😴 Hypnogram: A graph that represents the stages of sleep as a function of time.
• 🕰️ Circadian Rhythm: The biological clock; regulates sleep-wake cycle; influenced by light exposure.

Practice Quiz

1. Which stage of sleep is characterized by delta waves?
   1. A) Stage 1 (NREM 1)
   2. B) Stage 2 (NREM 2)
   3. C) Stage 3 (NREM 3)
   4. D) REM Sleep
2. Sleep spindles and K-complexes are most characteristic of which stage of sleep?
   1. A) Stage 1 (NREM 1)
   2. B) Stage 2 (NREM 2)
   3. C) Stage 3 (NREM 3)
   4. D) REM Sleep
3. During which stage of sleep are you most likely to experience vivid dreams?
   1. A) Stage 1 (NREM 1)
   2. B) Stage 2 (NREM 2)
   3. C) Stage 3 (NREM 3)
   4. D) REM Sleep
4. What is the approximate length of a typical sleep cycle?
   1. A) 30 minutes
   2. B) 60 minutes
   3. C) 90 minutes
   4. D) 120 minutes
5. Which of the following is NOT typically associated with REM sleep?
   1. A) Rapid eye movement
   2. B) Muscle paralysis
   3. C) Delta waves
   4. D) Dreaming
6. The biological clock that regulates our sleep-wake cycle is called the:
   1. A) Hypnogram
   2. B) Circadian rhythm
   3. C) Sleep spindle
   4. D) K-complex
7. In which stage of sleep are sleepwalking and night terrors most likely to occur?
   1. A) Stage 1 (NREM 1)
   2. B) Stage 2 (NREM 2)
   3. C) Stage 3 (NREM 3)
   4. D) REM Sleep