PSYO 2470 Lecture Notes - Lecture 7: Neuropeptide Y, Orexigenic, Leptin

• School: Dalhousie University
• Department: Psychology
• Course: PSYO 2470
• Professor: Stamp Jennifer

Document Summary

*there are many factors of motivation but basic drives are understood the most. Dietary energy sources: lipids (fats), amino-acids (from proteins), glucose (carbohydrates), body is continuously using energy but we eat intimately, therefore we need to storage some energy. Energy balance and body fat: intake = expenditure of energy normal body fat, intake > expenditure obesity, intake < expenditure starvation. *this is a simple perceptive but there are more factors than just consumption of energy and energy usage. *animals where starved for some days and then allowed them to have food. It was noticed that they would feed and restored the body weight before starvation. *it would work if animals where forced to eat after some days. It was noticed that they would stop eating to go back to normal" body weight. Set point theories: the theory that there is an optimal level of energy storage.