ISU PSY 110 - Consciousness (3 pages)

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Consciousness



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Consciousness

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Lecture number:
22
Pages:
3
Type:
Lecture Note
School:
Illinois State University
Course:
Psy 110 - Fundamentals of Psychology
Edition:
1

Unformatted text preview:

PSY 110 1st Edition Lecture 22 Outline of Last Lecture I Insight Therapies II Relationship Therapies III Biomedical Therapies Outline of Current Lecture I Consciousness Current Lecture Consciousness Everything of which we are aware at any given time Circadian Rhythms Regular fluctuation from high to low points of certain bodily functions and behaviors within a 24 hour cycle Regulate all vital life functions Cycle of sleep and wakefulness More than 100 bodily functions and behaviors follow circadian rhythms The ebb and flow of consciousness Part biological part environmental Three important components of circadian rhythm o Body temperature o Light o Alertness Suprachiasmatic Nucleus SCN Body s biological alarm clock Structure in the hypothalamus Controls timing of circadian rhythms Signals pineal gland to secrete or suppress melatonin Subjective Night Time during a 24 hour period when the biological alarm clock tells a person to go to sleep Restorative Theory of Sleep Function of sleep is to restore body and mind restoration of energy and consolidation of memory occur during sleep These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute Circadian Theory of Sleep Sleep evolved to keep humans out of harm s way during the night also known as evolutionary or adaptive theory Stage 1 Sleep Transition from waking to sleeping irregular waves with occasional alpha waves Stage 2 Sleep Transition from light to deeper sleep sleep spindles waves with alternating periods of calm and flashes of intense activity appear Stage 3 Sleep Deeper sleep slow wave sleep begins when EEG shows that 20 of brain waves are delta waves Stage 4 Sleep Deepest sleep stage 4 sleep begins when 50 of waves are delta waves REM Rapid eye movement sleep Brain is highly active Epinephrine is released into the system o BP rises o Heart rate and respiration become faster and less regular Most vivid dreams occur



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