psych 11-6 - November 6, 2007 Intro. Psych. 1 EC: 7pm,...

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November 6, 2007 Intro. Psych. 1 EC: 7pm, Dixon 103 (20 min.) Motivation: -a need/desire that energizes/directs behavior -“Nobody wants to kiss when they are hungry.” Dorothea Dix -4 perspectives to explain motivation -1. instincts/evolutionary psychology -instincts are complex behaviors that have fixed patterns throughout species and are unlearnt -2. drives/incentives -physiological need creates an aroused tension state (a drive) that motivates an organism to satisfy the need. Aim of drive reduction is homeostasis (maintenance of steady internal state) -where needs push, incentives (+/- stimuli) pull us in reducing our drives -3. optimal arousal -human motivation aims not to eliminate arousal but to seek optimum levels of arousal -4. hierarchy of needs -Maslow suggested some needs have priority over others -Maslow’s hierarchy -1. physiological needs -2. safety needs -3. belongingness and love needs -4. esteem needs -5. self-actualization needs
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Motivation and Hunger: -Biology of Hunger: -Stomach contractions send signals to the brain making us aware of our hunger -glucose level in the blood is maintained -insulin decreases glucose in the blood, making us feel hungry -hypothalamus monitors hormones that related to hunger Hormone Tissue Response Ghrelin increase Stomach Increases hunger Insulin increase Pancreas Increases hunger Leptin increase Fat cells Decreases hunger -Psychology of Hunger: -memory plays an important role in hunger -amnesia patients eat more -body chemistry and environmental factors together influence not only when we
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psych 11-6 - November 6, 2007 Intro. Psych. 1 EC: 7pm,...

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