ch.4 - Chapter 4 Learning Objectves 4.1 WhaT does iT mean...

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Chapter 4
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Learning Objectives 4.1 What does it mean to be conscious, and are there different levels of consciousness? 4.2 Why do people need to sleep, and how does sleep work? 4.3 What are the different stages of sleep, including the stage of dreaming and its importance? 4.4 How do sleep disorders interfere with normal sleep? 4.5 Why do people dream, and what do they dream about? 4.6 How does hypnosis affect consciousness? 4.7 What is the difference between a physical dependence and a psychological dependence on a drug? 4.8 How do stimulants and depressants affect consciousness and what are the dangers associated with taking them, particularly alcohol? 4.9 What are some of the effects and dangers of using hallucinogens, including marijuana? 4.10 How can the workings of our consciousness explain “supernatural” visitations?
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Consciousness Consciousness a person’s awareness of everything that is going on around him or her at any given moment Waking consciousness state in which thoughts, feelings, and sensations are clear and organized, and the person feels alert Altered state of consciousness state in which there is a shift in the quality or pattern of mental activity as compared to waking consciousness
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We Need Sleep Circadian rhythm: a cycle of bodily rhythm that occurs over a twenty-four-hour period “circa”: about; “diem”: day Hypothalamus:
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