Chapter 10

• Consciousness - the subjective experience of perceiving oneself and one's surroundings
• Brain Death

  • No brain activity
  • No response to stimulus

  Coma

  • Low brain activity
  • No response to stimulus

  Vegetative State

  • Low brain activity
  • Responds to stimulus
• Circadian Rhythm-a rhythm of activity and inactivity lasting about a day

  
• Vegetative States

  • appears like a coma
  • can sometimes appear coherent
  • may smile
  • may be aware of their surrounding
• Insomnia - not enough sleep for the person to feel rested the next day

  • Continuous process, impacts day-to-day life
• Sleep Apnea - when sleeping, you stop breathing for a minute or more and then wake up gasping for breath 


  Can be treated with CPAP
• Sleep Apnea and Insomnia are diagnosed by a sleep study
• Narcolepsy - sudden attacks of sleepiness during the day
• Night Terror - causes someone to awaken screaming and sweating with a racing heart rate, sometimes flailing with the arms and pounding the walls occur during Stage 3 or Stage 4 of sleep 


  Treatment can be routine changes or therapy

  • More prevalent in children
• Sleep Stages:

  • Stage 1 - falling asleep/light sleep, easily awakened, feel like you're falling
  • Stage 2 - heart rate slows and body temperature drops, measurable
  • Stage 3&4 - deep sleep, muscles and tissue repair
  • R.E.M. - body is paralyzed and dreams begin
• Sleep Paralysis - occurs during REM sleep
• Deja Vu Experience - feeling that an event is uncannily familiar