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States of consciousness. Waking, Sleep, Dreaming. What is consciousness?. Root of psychology as a science State of awareness. Waking conscious. Awareness of self and environment Active thought Selective attention Inattentional blindness Change blindness Mindsight.

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states of consciousness

States of consciousness

Waking, Sleep, Dreaming

what is consciousness
What is consciousness?
  • Root of psychology as a science
  • State of awareness
waking conscious
Waking conscious
  • Awareness of self and environment
    • Active thought
  • Selective attention
    • Inattentional blindness
    • Change blindness
    • Mindsight
levels of information processing
Levels of information processing
  • Conscious awareness
  • Unconscious processing
    • Priming
alterations in consciousness
Alterations in consciousness
  • Deviation from normal alertness
  • Why do human alter their conscious?
biological rhythms
Biological rhythms
  • Rest-wake cycles
  • Circadian rhythms
  • Sleep
sleep stages
Sleep stages
  • Stage 1
  • Stage 2
  • Stage 3
  • Stage 4
  • REM sleep
sleep stages throughout the night

Awake

Sleep

stages

1

2

3

REM

4

0

1

2

3

4

5

6

7

Hours of sleep

Sleep stages throughout the night
why do we sleep
Why do we sleep?
  • Non-REM sleep
    • Survival
    • Rest
  • REM sleep
    • Brain development
    • Memory consolidation
sleep loss
Sleep loss
  • Teenagers today get nearly 2 hours less sleep every night than teens 80 years ago.
  • 2001 Gallup poll: 61% of men and 47% of women said they get enough sleep
  • 2005 study: life satisfaction correlated with getting enough sleep
  • Recurrent insomnia affects 10-15% of adults
  • 1 in 20 has sleep apnea
what is enough sleep
What is “enough” sleep?
  • Varies from person to person
  • Subjective evaluation
insomnia
Insomnia
  • Persistent inability to fall asleep or stay asleep
    • Subjective
    • Subjects overestimate time awake
  • Drug-dependent insomnia
narcolepsy
Narcolepsy
  • Neurological disorder characterized by sleep at inappropriate times
    • Sleep attacks
    • Cataplexy
  • Treatments
sleep apnea
Sleep apnea
  • Inability to breathe while sleeping
    • Caused by airway obstruction
    • Sleeper wakes, gasping for air
  • Treatment
night terrors
Night terrors
  • Disorder marked by heightened arousal, activity and fear
    • Children
    • Slow-wave sleep
dreams
Dreams
  • REM vs. daydreams
  • Dream content
  • Theoretical reasons for dreaming
    • Wish fulfillment
    • Activation-synthesis
    • Memory consolidation