STATES OF CONSCIOUSNESS CRASH COURSE Sleep crash course
- Slides: 41
STATES OF CONSCIOUSNESS CRASH COURSE
Sleep crash course Sleep is a state of consciousness. We are less aware of our surroundings. Circadian Rhythm http: //www. learner. org/series/discoveringpsychology/13/e 13 expand. html
Sleep Cycle • • • Use an EEG machine to measure stages of sleep. When you are the onset of sleep you experience alpha waves. Produces mild hallucinations, like a feeling of falling.
Biological Rhythms and Sleep Stages
Biological Rhythms and Sleep Typical Nights Sleep
Stage 1 Kind of awake and kind of asleep. Only lasts a few minutes, and you usually only experience it once a night. Your brain produces Theta Waves.
Biological Rhythms and Sleep Stages
Biological Rhythms and Sleep Typical Nights Sleep
Stage 2 More Theta Waves that get progressively slower. Begin to show sleep spindles…short bursts of rapid brain waves.
Biological Rhythms and Sleep Stages
Biological Rhythms and Sleep Typical Nights Sleep
Stages 3 and 4 Slow wave sleep. You produce Delta waves. If awoken you will be very groggy. Vital for restoring body’s growth hormones and good overall health. From stage 4, your brain begins to speed up and you go to stage 3, then 2…. then ……
Biological Rhythms and Sleep Stages
Biological Rhythms and Sleep Stages
Biological Rhythms and Sleep Typical Nights Sleep
REM Sleep Rapid Eye Movement Often called paradoxical sleep. Brain is very active. Dreams usually occur in REM. Body is essentially paralyzed. REM Rebound
Sleep Disorders
Insomnia Persistent problems falling asleep Effects 10% of the population Primary versus Secondary Insomnia
Narcolepsy https: //www. youtube. com/watch? v=Lbmb. Q k. X 7 czo Click above to see Skeeter the narcoleptic dog. Suffer from sleeplessness and may fall asleep at unpredictable or inappropriate times. Directly into REM sleep Less than. 001 % of population.
Sleep Apnea • • A person stops breathing during their sleep. Wake up momentarily, gasps for air, then falls back asleep. Very common, especially in heavy males. Can be fatal.
Night Terrors Wake up screaming and have no idea why. Not a nightmare. Most common in children (boys) between ages 2 -8.
Somnambulism • • • Sleep Walking Most often occurs during the first few hours of sleeping and in stage 4 (deep sleep). If you have had night terrors, you are more likely to sleep walk when older.
Dreams
Freud’s Theory of Dreams are a roadway into our unconscious. Manifest Content (storyline) Latent Content (underlying meaning)
Activation-Synthesis Theory Our Cerebral Cortex is trying to interpret random electrical activity we have while sleeping. That is why dreams sometimes make no sense. Biological Theory.
Information-Processing Theory Dreams are a way to deal with the stresses of everyday life. We tend to dream more when we are more stressed.
Hypnosis http: // www. learner. org/series/discoveringpsychology/14/e 14 expand. html http: //www. learner. org/series/discoveringpsychology/14/e 14 expand. html crash course start at the 10 min mark
Hypnosis Altered state of consciousness? Posthypnotic suggestion Posthypnotic amnesia
Hypnotic Theories ROLE THEORY • • Hypnosis is NOT an altered state of consciousness. Different people have various state of hypnotic suggestibility. A social phenomenon where people want to believe. Work better on people with richer fantasy lives. STATE THEORY Hypnosis is an altered state of consciousness. Dramatic health benefits It works for pain best.
Dissociation Theory • • Theory by Ernest Hilgard. We voluntarily divide our consciousness up. Ice Water Experiment. We have a hidden observer, a level of us that is always aware.
Drugs
Drugs Our brain is protected by a layer of capillaries called the blood-brain barrier. The drugs that are small enough to pass through are called psychoactive drugs.
Drugs are either…. Agonists • Antagonists • Reuptake inhibitors If a drug is used often, a tolerance is created for the drug. Thus you need more of the drug to feel the same effect. If you stop using a drug you can develop withdrawal symptoms. •
Stimulants Speed up body processes. More powerful ones (like cocaine) give people feelings of invincibility.
Depressants Slows down body processes. Alcohol Anxiolytics (barbiturates and tranquilizers)
Alcohol • • More than 86 billion dollars are spent annually on alcoholic beverages. Alcohol is involved in 60% of ALL crimes. Alcohol is involved in over 70% of sexually related crimes. Is it worth the cost?
Hallucinogens • • Psychedelics Causes changes in perceptions of reality LSD, peyote, psilocybin mushrooms and marijuana. Reverse tolerance or synergistic effect
Opiates • • • Has depressive and hallucinogenic qualities. Agonist for endorphins. Derived from poppy plant. Morphine, heroin, methadone and codeine. All these drugs cross the placental barrier…. teratogens.
Let’s Have a Mouse Party! http: //learn. genetics. utah. edu/content/addiction/mouse/
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