PSY 2012 Lecture Notes - Lecture 31: Anorexia Nervosa, Leptin, Weight Gain
2 Nov 2017
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Drives: especially wants and needs that propel us in specific directions, (cid:498)motivational speakers(cid:499) do not actually cause any long term change in ppl"s behaviors, theory proposing that certain drives motivate us to act in ways that. Drive reduction theory minimize aversive states: hunger, sexual frustration thirst, we are attempting to maintain a level of psychological homeostasis. Yerkes dodson law: we tend to do our best and are most content when we experience intermediate levels of arousal. Incentive theories prior commitments: propose that we are often motivated by positive goals. The brain is the center for food cravings. Eating disorders: anorexia nervosa is less common but more dangerous. Individuals tend to become emaciated, often losing 25-50 of their body weight: more culturally and historically universal than bulimia. Individuals with bulimia nervosa engage in recurrent binge eating, followed by efforts to minimize weight gain: most common eating disorder, affects 1-3 percent of us population, primarily female, report high levels of body dissatisfaction.
