Sleep & Dreaming III

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9 Terms

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Sleepwalking (Somnambulism)

Walking or performing other activities while not fully awake.

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Hallucination

Sensory experiences that appear real but are created by the mind; can occur in sleep deprivation or narcolepsy.

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Lucid Dreaming

Awareness that one is dreaming, sometimes with the ability to control dream events.

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NREM 1

Light sleep; transition from wakefulness; theta waves appear.

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NREM 2

Deeper sleep; sleep spindles and K-complexes occur.

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NREM 3

Deep (slow-wave) sleep; delta waves dominate.

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REM Sleep

Stage of vivid dreaming; characterized by rapid eye movements, high brain activity, and muscle paralysis.

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Dreams

Mental experiences during sleep involving imagery, emotions, and narratives.

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Sleep Spindles

Bursts of rapid brain activity in NREM 2 sleep, linked to memory consolidation.