Lecture 10_ Motivation - Lecture 10 Motivation Motivation...

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Lecture 10: Motivation Motivation: vigor and persistence of goal directed behavior, helps move us towards our goals Evolutionary Theory: motivation plays a significant role in adaptation; social need to affiliate, share resources, provide attention, procreation Drives: internal state of tension that propels one to a certain activity/behavior to lessen the feeling Incentives: external goals that promote a behavior Intrinsic Motivation: a motivation to take actions that are themselves rewarding Extrinsic Motivation: a motivation to take actions that are not themselves rewarding, but that lead to reward Delay of Gratification: the ability to engage in behaviors that are currently unrewarding for greater rewards. Associated with better grades (more predictive than IQ), social competence, emotional intelligence, achievement motivation, higher SAT Biological Needs/Motivations Homeostasis: tendency for the body (person) to want to maintain a state of constancy Hunger/Food: Energy is necessary for maintenance and growth. Search for a balanced diet Hypothalamus: primary structure of the brain which signals hunger and satiation (fullness) Lateral (near side) turns hunger “on”. Stimulation yields increased eating. A lesion or damage can cause starvation Ventromedial (lower, middle) is the hunger “off”. Stimulation stops eating. Lesion or damage can cause voracious eating According to Weiten, recent research suggests that that the arcurate and paraventricular areas may be more critical in regulation of hunger areas than the lateral and ventromedial hypothalmus Various Factors That Impact Eating Behaviors Biological Factors Genetics influence metabolism
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Bodily Sensations: growl, distension Chemical Signals to the body (ghrelin stimluates hunger) Leptin: hormone that helps regulate hunger.
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