Theories of Sleep & Sleep Disorders Today’s Goal: Why do we sleep and what happens when disorders prevent us from getting good sleep?

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Presentation transcript:

Theories of Sleep & Sleep Disorders Today’s Goal: Why do we sleep and what happens when disorders prevent us from getting good sleep?

Why Do We Sleep? ProtectsProtects Restore & repairRestore & repair Making memoriesMaking memories Creative thinkingCreative thinking GrowthGrowth

Sleep Deprivation Genetic & cultural influences on how much sleep we needGenetic & cultural influences on how much sleep we need Lack of sleepLack of sleep –Takes a long time to repay sleep debt –Sleep deprivation = weight gain –Suppresses immune system –Effects similar to aging –Fatal accidents

Insomnia

Hypersomnia

Narcolepsy

Sleep Apnea

Somnambulism (Sleepwalking)

Night Terrors

Theories of Dreaming Freud’s wish-fulfillmentFreud’s wish-fulfillment Manifest content  storyline of dream Latent content  underlying meaning Info-processingInfo-processing Sort out day’s events & experiences, make memories

Theories of Dreaming PhysiologicalPhysiological Brain stimulation develops & preserves neural pathways Activation-synthesisActivation-synthesis Random neural firing, our brains create meaning Cognitive developmentCognitive development Reflect person’s cognitive dev. & understanding

Hypnosis Hypnotic inductionHypnotic induction Can anyone experience hypnosis?Can anyone experience hypnosis? Can hypnosis enhance recall of forgotten events?Can hypnosis enhance recall of forgotten events? Can hypnosis force people to act against their will?Can hypnosis force people to act against their will? Can hypnosis be therapeutic?Can hypnosis be therapeutic?

What is hypnotized state? Hypnosis = social phenomenonHypnosis = social phenomenon Hypnosis = divided consciousnessHypnosis = divided consciousness Dissociation  split between levels of consciousness Unified account of hypnosis (combination)Unified account of hypnosis (combination)