PSYCH 1XX3 Lecture Notes - Lecture 12: Temporal Lobe, Local Food, Amygdala

• School: McMaster University
• Department: Psychology
• Course: PSYCH 1XX3
• Professor: Joe Kim

Document Summary

Food seeking is as much a lifestyle as it is a necessity. Food consumption once dominated our everyday life. Smell is just as important as taste in guiding feeding behaviour. Hunger and satiety cycles throughout the day. There are many signals and complex interactions between the brain and digestive system that tell you when you"re hungry. Blood glucose levels regulate feelings of hunger and satiation. Glucose is the primary source of energy for the brain. Stored in muscles but mostly in the liver. Glycogen stores help maintain blood glucose levels over the course of the day. High levels of activity in the hypothalamus driven by npy are associated with appetite and food seeking behaviours. Glycogen = satiety liver monitors glucose levels to control hunger and satiety. A hormone that is responsible for feeling satiety. Cck appears to regulate short term feeding behaviours like ending a meal. Cck does not regulate long-term energy consumption.