Chapter-4-Consciousness

Chapter-4-Consciousness - circadian rhythm : a rhythm of...

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Unformatted text preview: circadian rhythm : a rhythm of activity and inactivity lasting about 1 day morning people do their best work before noon evening people do their best work in the afternoon or evening young adults are either evening or neutral older people (over age 65) are morning people memory tasks a small area at the base of the brain, produces the circadian rhythm exerts control by regulating the pineal glands secretion of melatonin What is consciousness? Consciousness: our awareness of ourselves and our environment Is used to organize behavior Waking consciousness : state in which thoughts, feelings, and sensations are clear, organized, and the person feels alert. Altered state of consciousness : state in which there is a shift in the quality or pattern of mental activity as compared to waking consciousness imposes order on the objects and events we experience help us make sense of the world our awareness is the visible surface of our brains information processing Nonconscious Preconscious Unconscious Conscious reflect the ability of the mind to create inner private realities unconnected to the world around us helps us overcome boredom cope with problems induce creativity keep mind active substitute for impulsive behavior Repair and restoration theory : sleep has restorative functions involving protein synthesis and restoration of brain processes connecting new daily material with old material in the brain energy-conservation theory of sleep : Evolution equipped us with a regular pattern of sleeping and waking to conserve fuel and to prevent us from walking into danger sleep researchers measure brain-wave activity, eye movement, and muscle tension electroencephalograph (EEG) - amplifies slight electrical signals from the brain EOG, EEG Alpha activity...
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This note was uploaded on 10/04/2010 for the course PSY 006904 taught by Professor Troisi during the Fall '09 term at SUNY Buffalo.

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Chapter-4-Consciousness - circadian rhythm : a rhythm of...

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