States of Consciousness
Explore the different states of consciousness, including sleep, dreams, and altered states, and their physiological bases.
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States of Consciousness
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Read each question carefully and provide your best answer. This worksheet covers key concepts related to states of consciousness.
1. Which of the following brain waves are most prominent during deep sleep (Stage 3 and 4 NREM)?
Alpha waves
Beta waves
Delta waves
Theta waves
2. REM sleep is characterized by:
Slow brain waves and muscle relaxation
Rapid eye movements and vivid dreams
Sleepwalking and night terrors
Light sleep and easy arousal
3. The sleep-wake cycle is regulated by the body's internal clock, known as the .
4. Psychoactive drugs affect consciousness by altering activity in the brain.
5. Hypnosis is a state of heightened suggestibility and focused attention.
True
False
6. Sleep deprivation has no significant impact on cognitive function.
True
False
7. Briefly describe the primary characteristics of Non-REM (NREM) sleep.
8. Explain the difference between physical dependence and psychological dependence on a psychoactive drug.
Match each term on the left with its definition on the right.
9. Circadian rhythm
a. A state of altered perception and sensation.
10. Narcolepsy
b. A disorder characterized by uncontrollable sleep attacks.
11. Hallucinogen
c. The body's natural 24-hour cycle.
The image below illustrates different brain wave patterns. Identify which pattern is most associated with an alert, waking state and which is associated with deep sleep.

Alert, waking state brain wave pattern:
Deep sleep brain wave pattern: