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States of consciousness

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

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  1. States of consciousness Waking, Sleep, Dreaming

  2. What is consciousness? • Root of psychology as a science • State of awareness

  3. Waking conscious • Awareness of self and environment • Active thought • Selective attention • Inattentional blindness • Change blindness • Mindsight

  4. Levels of information processing • Conscious awareness • Unconscious processing • Priming

  5. Alterations in consciousness • Deviation from normal alertness • Why do human alter their conscious?

  6. Biological rhythms • Rest-wake cycles • Circadian rhythms • Sleep

  7. Sleep stages • Stage 1 • Stage 2 • Stage 3 • Stage 4 • REM sleep

  8. Awake Sleep stages 1 2 3 REM 4 0 1 2 3 4 5 6 7 Hours of sleep Sleep stages throughout the night

  9. Why do we sleep? • Non-REM sleep • Survival • Rest • REM sleep • Brain development • Memory consolidation

  10. 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

  11. What is “enough” sleep? • Varies from person to person • Subjective evaluation

  12. Insomnia • Persistent inability to fall asleep or stay asleep • Subjective • Subjects overestimate time awake • Drug-dependent insomnia

  13. Narcolepsy • Neurological disorder characterized by sleep at inappropriate times • Sleep attacks • Cataplexy • Treatments

  14. Sleep apnea • Inability to breathe while sleeping • Caused by airway obstruction • Sleeper wakes, gasping for air • Treatment

  15. Night terrors • Disorder marked by heightened arousal, activity and fear • Children • Slow-wave sleep

  16. Dreams • REM vs. daydreams • Dream content • Theoretical reasons for dreaming • Wish fulfillment • Activation-synthesis • Memory consolidation

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