lecture 14 eating 2

lecture 14 eating 2 - 11/5/2008 Lecture 14: The Biology of...

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11/5/2008 1 Lecture 14: The Biology of Eating II Overview 1. Review 2. Leptin 3. What triggers hunger? 4. Eating disorders Jean Mayer’s glucostatic theory proposed that hunger is caused by a low blood glucose level which stimulates glucoreceptors in the CNS What influences when we get hungry? (probably the hypothalamus) to initiate eating. This theory was based on studies which indicate that administration of insulin lowers blood glucose levels which would induce eating.
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11/5/2008 2 Influence of Insulin on Blood Glucose Level Blood Glucose Level and Eating Behavior
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11/5/2008 3 Mayer also predicts that Metabolic Cues injections of glucagon will produce a decrease in both stomach contraction s and reported hunger. Metabolic Cues: Challenges to the Glucostatic Theory Diabetic people with high blood glucose levels are very hungry levels are very hungry. Mayer proposed that it wasn’t the level of glucose but the availability of glucose. If blood glucose is not available due to lack of insulin, then a condition of glucoprivation exists which serves as a hunger signal.
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11/5/2008 4 Challenges to Glucostatic theory Joey Chestnut Takeru Kobayashi Obesity rates on the rise
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11/5/2008 5 Nearly half of kids in North and South America could be overweight by year 2010 Controlling hunger Cholestocystokining (CCK) is a gut hormone responsible for stimulating the
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This note was uploaded on 02/05/2011 for the course PSY 370 taught by Professor Zalava during the Fall '09 term at CSU Long Beach.

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lecture 14 eating 2 - 11/5/2008 Lecture 14: The Biology of...

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