PS102 Study Guide - Eating Disorder, Brown Adipose Tissue, Libido
Document Summary
Motivation: an inferred process within a person or animal that causes movement either toward a goal or away from an unpleasant situation. Intrinsic: the pursuit of an activity for its own sake. Extrinsic: the pursuit of an activity for external rewards (e. g. money or fame) Set point: the genetically influenced weight range for an individual; it is maintained by biological mechanisms that regulate food intake, fat reserves and metabolism. Basal metabolism rate: rate at which the body burns calories for energy. Everyone has fixed number of fat cells. Obese people have twice the number of fat cells & are bigger. High heritability of weight, body fat & amount of brown fat (fat that burns calories) a person has weight is gained in the same places. Leptin (hormone) can affect how much a person eats because it affects the hypothalamus in telling the body when it should eat if reserves are too low.
