Lecture 7-Conscious

Lecture 7-Conscious - C o n s c io u s n e s s S le e p D...

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Consciousness Sleep Dreams Hypnosis Meditation Visualization Attention
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Consciousness Ongoing awareness of our own thoughts, sensations, feelings, and existence. Normal consciousness Altered states of consciousness (ASC)
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Sleeping and Dreaming
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BRAINSTEM: Basic Life Functions
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How important is one hour of sleep?
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Electroencephalogram (EEG) • Electrodes on scalp provide gross record of electrical activity in brain • Provide rough index of psychological states
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• Dreaming stage is closer to awake than to deep sleep!
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Why Do We Sleep? • Restoration theory - body wears out during the day and sleep helps restore • Preservation / protection theory - sleep evolved to preserve energy during periods when potential activity is low
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Less REM sleep with age: Newborns 50%, Elderly 20%
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Back to Alien Abduction • Occur late at night, during sleep • Hypnogogic vs. Hypnopomic hallucinations • Paralysis from muscle relaxation during sleep
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Sleep Disturbances • Hypersomnia (Narcolepsy) – Irresistible, sudden daytime drowsiness • Parasomnia (Disturbance)
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Lecture 7-Conscious - C o n s c io u s n e s s S le e p D...

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