PSYC 3403 Lecture Notes - Lecture 11: Prefrontal Cortex, Neuropeptide Y, Neuroscience
23 Mar 2018
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In canada, we have an overabundance of food: we have unlimited resources of food. Ghrelin is released and triggers food consumption. Very rare that they"re (cid:272)o(cid:374)su(cid:373)i(cid:374)g (cid:271)e(cid:272)ause they"re really hu(cid:374)gry. Body shuts down its normal function of being hungry and being full. When you sleep too much or not enough your food consumption is. There is a reward for being hungry and eating. In diabetics: triggers that stimulate hunger are cyclical, pre-food consumption rise, food consuming, opposite of anorexia, ghrelin pre-prandial rise. Stimulates eating: leptin postprandial rise. Inhibits eating: hypothalamus primary regulatory center for food intake and body weight, part of your brain that say that your hungry, mice were very obese, helped in the discovery of leptin, administration of leptin reversed the effect. Duel-center hypothesis: *: the hypothalamus has two destine regions, ventromedial hypothalamus. Hunger: lateral hypothalamus, each region regulates the opposing action, hunger vs. satiety.
