Consciousness ch.5

Definition:what’s going on inside and outside our bodies
1. Attention: concentrating
  1. mind wondering focusing on unrelated tasks (15-50% of the time
  2. EKG (encephalograph): measures electro impulses in the brain waves differ in height or amplitude and width or frequency
  3. Biological rhythms: rhythms that monitor passages of time
    1. Circadian Rhythms are the 24 hour biological cycles, that affect vitals
Stages of sleep
1. Stage 1: 1-7 min, where the body slows down vitals , and theta waves increase
  1. Stage 2: EEG activity is mixed , with higher in amplitude and slower in frequency & sleep spindles
    1. Stage 3 & 4: low-frequency delta waves are present
      1. Stage 5: REM sleep, where dreaming occurs & person is very relaxed
        Non-REM: repeated 4 times, no eye movement
Brain
1. Pons: used for REM sleep
2. ascending reticular activating system (ARAS) : for psychological arrousal
3. Hypothalamus: sleep & wakefulness
Sleep disorders
1. Sleep deprivation
  1. Can interfere with daily tasks
2. Insomnia
  1. These people believe they are not getting enough sleep but actually they are
    1. Treated with sedatives
3. Narcolepsy
  1. Sudden sleep during being awake
    1. Treatment: Stimulant drugs
4. Sleep apnea
  1. Stop breathing while sleeping
    1. Treatment: surgery or medication
5. Nightmares
  1. Awaking with anxiety while sleeping
    1. Treatment: counselling
6. Night terrors
  1. Awake from NREM from panicking
    1. Treatment:may not be necessary
7. Somnambulism
  1. wondering around while sleeping
    1. Treatment: Lock door avoid dangers
8. REM sleep behaviour disorder (RBD)
  1. Caused by brainstem deterioration
Hypnosis
1. enhanced relaxation, narrowed attention, and enhanced fantasy
2. 10-20% of people cannot get hypnosis
  1. hypnotic susceptibility: is your threshold to be put under hypnosis
3. Easy to hypnosis: Absorption: block out everything else, Dissociation: Can separate parts of their perception, memory, Suggestibility: accept directions from others
4. Effects: Anesthesia, hallucinations, and Disinhibition
Meditation
1. Focusing ones mind & relaxing
2. Proven to slow vitals for maximum relaxation
3. lower levels of stress hormones and better immune functioning
Psycho drugs
1. Opiates
  1. a sense of euphoria
  2. Elevate dopamine activity
2. Sedatives
  1. Make people sleepy & depress CNS
3. Stimulants
  1. euphoric but energetic and very alert
4. Hallucinogens
  1. dreamlike experiences, including euphoria & nightmares by increasing sensory awareness
5. Cannabis
  1. relaxed euphoria and higher sensory awareness
6. Alcohol
  1. relaxed euphoria & personality changes
7. MDMA
  1. alert and energetic, friendly and "cuddly"
8. Tolerance: resistance to effects
  1. Physical dependence: body needs drug
    1. Psychological dependence: Mind wants the drug

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Consciousness ch.5

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