psych 5

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makayxocourt
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118170
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psych 5
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2011-11-20 19:16:51
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psych
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  1. consciousness
    our awaremness of ourselves and our environment
  2. circadian rhythm
    the biological clock; regular bodily rythms that occur on a 24-hour cycle.
  3. REM sleep
    rapid eye movement sleep; a recurring sleep stage during which vivid reams commonly occur. Also known as paradoxical sleep because the muscles are relaxed but other body systems are active.
  4. alpha waves
    the relatively slow brain waves of a relaxed, awake state.
  5. hallucinations
    false sensory experiences, such as seeing something in the absence of an external visual stimulus.
  6. delta waves
    the large, slow brain waves associated with deep sleep.
  7. non-REM sleep
    non-rapid eye movement sleep; encompasses all sleep stages except for REM sleep.
  8. insomnia
    recurring problems in falling or staying asleep.
  9. Narcolepsy
    a sleep disorder characterized by uncontrollable sleep attacks. The sufferer may lapse directly into REM sleep at unusual times.
  10. sleep apnea
    a sleep disorder characterized by temporary cessations of breathing during sleep and repeated momentary awakenings.
  11. night terrors
    a sleep disorder characterized by high arousal and an appearance of being terrified; unlike night-mares, these occur during stage 4 sleep, within two or three hours of falling asleep, and are seldom remembered.
  12. dream
    a sequence of images, emotions, and thoughts passing through a sleeping person's mind. Dreams are notable for their hallucinatory imagery, discontinuities, and incongruities, and for the dreamer's delusional acceptance of the content and later difficulties remembering it.
  13. manifest content
    according to Freud, the remembered story line of a dream (as distinct from its latent, or hidden, content).
  14. latent content
    according to Freud, the underlying meaning of a dream (as distinct from its manifest content).
  15. REM rebound
    the tendency for REM sleep to increase following REM sleep deprivation (created ny repeated awakenings during REM sleep).
  16. hypnosis
    a social interaction in which one person suggests to another that certain perceptions, feelings, thoughts or behaviors will spontaneously occur.
  17. psychoactive drugs
    a chemical substance that alters perceptions and moods.
  18. tolerance
    the diminishing effect with regular use of the same dose of a drug, requiring the user to take larger and larger doses before experiencing the drug's effect.
  19. withdrawl
    the discomfort and distress that follow discontinuing the use of an addictive drug.
  20. physical dependence
    a physiological need for a drug, marked by unpleasant withdrawal symptoms when the drug is discontinued.
  21. psychological dependence
    a psychological need to use a drug, such as to relieve negative emotions.
  22. addiction
    compulsive drug craving and use, despite adverse consequences.
  23. depressants
    drugs (such as alcohol, barbiturates and opiates) that reduce neural activity and slow body functions.
  24. Barbiturates
    drugs that depress the activity of the central nervous system, reducing anxiety but impairing memory and judgment.
  25. opiates
    opium and its derivatives, such as morphine and heroin; they depress neural activity, temporarily lessening pain and anxiety.
  26. stimulants
    drugs (such as caffeine, nicotine, cocaine and ecstasy) that excite neural activity and speed up body functions.
  27. amphetamines
    drugs that stimulate neural activity, casuing speeded-up body functions asn associated energy and mood changes.
  28. hallucinogens
    psychedelic drugs, such as LSD, that distort perceptions and evoke sensory images in the absence of sensory input.
  29. activation-synthesis theory
    the theory that dreams are the by-products of the mind's attempt to make sense of the spontaneous changes in physiological activity generated by the pons during REM sleep.

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