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Altered states of consciousness

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Transcript

  • 1. Altered States of Consciousness Sleep and Dreams
  • 2. Objectives
    • Describe the theories associated with why we sleep
    • List and describe sleep disorders
    • Describe and explain the characteristics of the different sleep cycles
  • 3. Theories
    • Restorative
      • Allows a person to “charge their batteries”
      • Brain recovers from exhaustion and stress
    • Primitive Hibernation
      • Sleep to conserve energy
    • Adaptive Process
      • Night vulnerable time – keep safe
    • Clear mind of useless information
      • Dreaming
  • 4. Stages of Sleep
    • Stage I
      • Lightest sleep Alpha + Theta waves
    • Stage II
      • Brain waves shift - Theta waves
    • Stage III
      • Deep sleep – Delta waves + Theta waves
    • Stage IV
      • Deepest of sleep – Large Delta waves sweep brain every second - +50%
    • REM SLEEP
      • Brain waves similar to awake person – Beta Waves
  • 5. Circadian Rhythm
    • Biological clock that is roughly 24 hours
    • Regulates physiological responses
    • Even w/o cues people respond to this
  • 6.  
  • 7. Sleep Disorders
    • Insomnia
    • Sleep Apnea
    • Narcolepsy
    • Night Terrors
    • Sleep Walking/Talking
  • 8. Insomnia
    • Not sleeping
  • 9. Sleep Apnea
    • Breathing stops or has trouble breathing during sleep
    • Snoring
    • Choking
    • Affects 1/100 Americans
  • 10. Causes and Symptoms
    • Causes
      • Enlarged Tonsils
      • Throat/Middle ear infections
      • Obesity
    • Symptoms
      • Trouble breathing
      • Choking
      • Snoring that ends abruptly
  • 11.  
  • 12.  
  • 13. Narcolepsy
    • Suddenly falling asleep
    • Feeling very sleepy during the day
    • Symptoms
      • Unusual sleep and dream patterns
      • Sleep attacks are brief REM episodes
      • Prone to accidents
      • Relationships/work
  • 14. Narcolepsy
    • Causes
      • Autoimmune disease
      • Immune system kills hypocretin making cells
      • HLA gene variant
        • Keep immune system in check
  • 15. Night Terrors
    • Unpleasant dreams
    • Screaming, panic, confusion
    • Usually in children
    • Cause
    • Intense stimulation of the part of the brain that deals with emotional reactions
      • What part is that?
  • 16. Sleep Walking/Talking
    • Symptoms
    • Walking / Talking during sleep
    • In most cases it is harmless
    • Causes
    • Stress, fatigue
    • Sedative medicines
    • Heredity
  • 17. What Have You Learned?
    • What is the difference between REM and NREM sleep?
    • What are the four theories as to why we sleep?
    • Why would you consider sleep an altered state of consciousness?