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Unformatted text preview: Psych 111 Unit 2 Tuesday, February 20, 2007 Consciousness: Personal Awareness Consciousness- awareness of internal and external stimuli *2 levels of awareness (the conscious and unconscious ) William James (Functionalist, 1902) = contents of cosciousness are continually changing o Described it as a continuous flow of thoughts, or a stream of consciousness An endless flow of things you were thinking Sigmund Freud (1900) What goes on beneath this stream? o Peoples feelings and behavior are governed by unconscious needs, wishes, and conflicts Sleep/anesthesia research even while unconscious folks can be aware of external events/stimuli The Electroencephalograph: A Physiological Index of Consciousness Changes in consciousness are correlated with changes in brain activity o EEG: monitoring of brain electrical activity Measures brain waves, looking for changes in o Amplitude (height) <and> o Frequency (cycles per second) Remember that just because 2 items are correlated doesnt mean that one causes anothercould be a 3...
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