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Copyright © 2011 Pearson Education, Inc. All Rights Reserved This multimedia product and its content are protected under copyright law. The following are prohibited by law: Any public performance or display, including transmission of any image over a network. Preparation of any derivative work, including the extraction, in whole or in part, of any images. Any rental, lease, or lending of the program.
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Explaining Motivation Hunger Copyright © 2011 Pearson Education, Inc. All Rights Reserved
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Motivation processes that initiate, direct, and sustain behavior motive: energizes and directs behavior toward goal Components of Motivation activation first steps toward goal persistence work toward goal despite encountering obstacles intensity energy and attention applied to achieve goal Copyright © 2011 Pearson Education, Inc. All Rights Reserved
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Primary Drives states of tension or arousal arise from biological need; unlearned Social Motives acquired through experience and interaction with others work motivation arousal, direction, magnitude, and maintenance of effort on the job achievement motivation f actors that move people to seek success in academic settings Copyright © 2011 Pearson Education, Inc. All Rights Reserved
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Instincts fixed behavior patterns characteristic of every member of a species assumed to be genetically programmed example: spiders spinning webs, birds migrating No true instincts motivate human behavior. Biological forces underlie some human behaviors. Copyright © 2011 Pearson Education, Inc. All Rights Reserved
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Drive Reduction Theory (Hull, 1943) Biological needs create internal states of tension or arousal. drive internal state created by need example: hunger or thirst drive homeostasis natural tendency of the body to maintain a balanced internal state Drive is created to restore balance. Copyright © 2011 Pearson Education, Inc. All Rights Reserved
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Arousal Theory derived from concept of homeostasis maintenance of balance to ensure physical survival People are motivated to maintain an optimal level of arousal. state of alertness and mental and physical activation stimulus motives increase stimulation when arousal is too low examples: curiosity, motive to explore Yerkes-Dodson Law Performance is best when arousal is appropriate to the difficulty of the task. Copyright © 2011 Pearson Education, Inc. All Rights Reserved
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Work Motivation goal setting Supervisors provide employees with specific, difficult goals. higher levels of performance Ways to enhance employees’ commitment to a goal: Employee participates in goal-setting. Make goals specific, attractive, difficult, and attainable. Provide feedback on performance. Reward employee for attaining goals. Copyright © 2011 Pearson Education, Inc. All Rights Reserved
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Expectancy Theory Motivation to engage in activity is determined by: Expectancy belief that more effort will result in improved performance Instrumentality belief that doing a job well will be noticed and rewarded Valence the degree to which rewards offered are valued Copyright © 2011 Pearson Education, Inc. All Rights Reserved
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Achievement Motivation (n Ach) need to accomplish something difficult perform at a high standard of excellence n Ach identified with Murray’s (1938) work with the Thematic Apperception Test (TAT) high n Ach self-determined goals goals linked to perceived abilities realistic low n Ach motivated more by fear of failure set goals too high or too low Copyright © 2011 Pearson Education, Inc. All Rights Reserved
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Goal Orientation Theory Achievement depends on which of 4 goal orientations an individual adopts. mastery goals measure achievement against desired level of knowledge or skill performance goals measure achievement against that of others research findings Students with mastery goal orientations procrastinate less. Students with performance approach orientation earn the highest grades. Copyright © 2011 Pearson Education, Inc. All Rights Reserved
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Abraham Maslow Human needs are hierarchical. Humans are motivated by their lowest unmet need. When lower needs are met, the ultimate goal is self-actualization.
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Excessive food avoidance or consumption dysfunctions in brain’s feeding/satiety system Hypothalamus and Feeding lateral hypothalamus (LH) feeding center; incites eating ventromedial hypothalamus (VMH ) satiety(fullness) center, inhibits eating Recent research suggests that the hunger/satiety center model is too simplistic (King, 2006; Pinel, 2007). Changes in blood sugar (glucose) also contribute to hunger/satiety. Copyright © 2011 Pearson Education, Inc. All Rights Reserved
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Body Mass Index (BMI) measure of weight relative to height BMI < 18.5 is underweight BMI > 25 is overweight Heredity is associated with variations in BMI. genes influence: metabolic rate number of fat cells in the body Set Point Theory An individual is genetically programmed to carry a certain amount of body weight. Copyright © 2011 Pearson Education, Inc. All Rights Reserved
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More than 1/3 of adults are obese. Most obese persons require a doctor’s supervision with diet due to health problems. Gastric bypass may be the only effective alternative for some obese people.
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Copyright © 2011 Pearson Education, Inc. All Rights Reserved
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Characterized by: Overwhelming, irrational fear of gaining weight or becoming fat Compulsive dieting to the point of starvation Excessive weight loss Causes of the disorder are not well understood. Risk factors include: Being overly worried about physical appearance Feeling social pressure to be thin Obsessive-compulsive disorder Treatment psychotherapy, self-help groups, antidepressant medication, protein supplements Copyright © 2011 Pearson Education, Inc. All Rights Reserved
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Characterized by: repeated and uncontrolled episodes of binge eating Causes of the disorder are not well understood. high rates of obsessive-compulsive disorder and self-injurious behavior Treatment is difficult. Behavior modification, cognitive-behavioral therapy, and antidepressant medications are sometimes effective. Copyright © 2011 Pearson Education, Inc. All Rights Reserved
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