Lecture 2-06-08 (CH 4) - Chapter 4 Lecture States of...

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Chapter 4 Lecture – States of Consciousness Consciousness - the awareness of the sensations, thoughts, and feelings being experienced at a given moment Waking consciousness Altered states of consciousness Stages of Sleep Stage 1 The stage of transition between wakefulness and sleep – relatively rapid, low- voltage brain waves Stage 2 Characterized by a slower, more regular wave patterns – some sharply pointed spiky waves called sleep spindles Stage 3 Brain waves become slower – higher peaks and lower valleys in the wave pattern Stage 4 Deepest stage of sleep where people are least responsive to outside stimuli and the wave patterns are slower and regular REM (Rapid Eye Motion) Sleep: The Paradox of Sleep Sleep that occupies a little over 20% of an adult’s sleeping time and is characterized by: Increased and irregular heart rate Increase in blood pressure Increase in breathing rate Erections in males Usually accompanied by dreams
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This note was uploaded on 04/29/2008 for the course PSYC 1000 taught by Professor Handron during the Spring '08 term at East Carolina University .

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Lecture 2-06-08 (CH 4) - Chapter 4 Lecture States of...

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