Table of contents

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1. Introduction to Psychology1h 43m
2. Psychology Research2h 20m
3. Biological Psychology2h 41m
4. Sensation and Perception28m
5. Consciousness and Sleep32m
- Sleep
  32m
6. Learning1h 26m
7. Memory34m
- Information Processing Model
  4m
- Storage - The Three Box Model of Memory
  29m
8. Cognition37m
- The Structure of Language
  12m
- Language Development
  25m
9. Emotion and Motivation35m
10. Developmental Psychology1h 20m
11. Personality1h 17m
12. Social Psychology1h 18m
13. Stress and Health41m
14. Psychological Disorders1h 27m
15. Treatment1h 24m

5. Consciousness and Sleep

Sleep

Psychology

5. Consciousness and Sleep

Sleep

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Multiple Choice

The heart rate slows, breathing becomes more shallow and irregular, and an EEG would show the first signs of sleep spindles in _____ sleep.

REM

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Verified step by step guidance

Begin by understanding the stages of sleep. Sleep is typically divided into non-REM (NREM) and REM sleep, with NREM further divided into stages N1, N2, and N3.

Recognize that N1 is the lightest stage of sleep, where a person can be easily awakened. It is characterized by slow eye movements and reduced muscle activity.

Identify N2 as the stage where sleep spindles first appear. Sleep spindles are bursts of oscillatory brain activity visible on an EEG, indicating a deeper sleep than N1.

Understand that N3 is the deepest stage of NREM sleep, often referred to as slow-wave sleep, characterized by delta waves on an EEG.

REM sleep is distinct from NREM stages, characterized by rapid eye movements, increased brain activity, and vivid dreams. It does not feature sleep spindles.