PSYC 320 Chapter Hunger : Motivation hunger (1) reading PDF
Document Summary
Down the hatch: few principles to keep in mind. Many animals and people do not eat continuously there are periods of time in which food is consumed. The stomach contraction theory: the initiation and termination of eating can be predicted on the basis of stomach contractions - - a historical theory found to be weak. Salivation and insulin responses might also trigger hunger (when exposed to odors, sounds, or visuals) Temperature theory of hunger: when the environment is colder, the body needs more fuel to keep itself heated to about 98. 6 degrees. Hunger could be triggered by a need to maintain homeostasis. Sham fed dogs could no longer associate oral eating with the stomach sensations and stopped. The expansion of the stomach is not an indicator of feeling full unless extreme. This falsi es the theory that drinking water before a meal will not cause you to feel full faster, and therefore eat less.
