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consciousness( a person’s awareness of everything going on around them at…

- - - - Tells people when to wake up and when to fall asleep
      - Sensitive to changes in light
- - - - Results in irritability and problems with
        concentration
      - May not be aware of deficits
- - - - Can (briefly) continue after waking up
  - - - N2: moderate sleep
        
        EEG sleep spindles appear, theta activity is predominant; body temperature continues to drop, heart rate and breathing slow
        
        Sleep spindles: brief bursts of activity lasting one or two seconds
      - N3: deep sleep
        
        delta activity makes up 20% to more than 50% of EEG activity, body at the lowest level of functioning and people are hard to awaken; sleep disorder such as sleep walking and night terrors occur in this stage.
        
        Body at lowest level of functioning
        
        Time at which growth occurs
      - N1: light sleep
        
        while awake, primarily beta activity, more alpha as one relaxes, onset of sleep in N1 as associated with alpha being replaced by theta
        
        Hypnagogic images: hallucinations or vivid visual events
        
        Hypnic jerk: knees, legs, or whole body jerks
- - - - Occurs during deep (NREM) sleep
- - - - Only 40% are good hypnotic subjects
- - - - Instead, they are merely playing role expected of
        them in the situation
- - - - Revised version of activation-synthesis explanation of dreams
- - - - Dreams like any other cognitive process
    - - Nearly 50% had sexual content
        
        Later research found lower percentage
- - - - Caffeine: stimulant found in coffee, tea, most sodas,
        chocolate, and even many over-the-counter drugs
      - Cocaine: produces euphoria, energy, power, and pleasure
      - Amphetamines: drugs that are synthesized (made in
        labs) rather than found in nature
        
        like Methamphetamine, crystal meth
      - Nicotine: active ingredient in tobacco
  - - - Alcohol: the chemical resulting from fermentation or
        distillation of various kinds of vegetable matter
        
        Often mistaken for a stimulant, but actually a depressant
        
        Most commonly used and abused depressant
        
        Effects of alcohol on cellebrum
    - - like Opium, morphine, heroin
      - methadone
        
        doesn't produce euphoria; used to treat heroin addiction
    - - major tranquilizers
    - - minor tranquilizers
        
        xanax
        
        halocion
        
        valiun
        
        ativan
        
        librium
        
        rohypnol
  - - - Hallucinations = false sensory experiences
    - - Produces a feeling of well-being, mild intoxication, mild sensory
        distortions or hallucinations
      - Affects reaction time and perception of surroundings