PSYC 4750 Chapter Notes - Chapter 5: Energy Homeostasis, Leptin, Food Energy

• School: University of Guelph
• Department: Psychology
• Course: PSYC 4750
• Professor: Erin Rock

Document Summary

Disturbances from both inside the body and our are counteracted by body processes to maintain a stable internal environment. A self correcting process that reduces the discrepancy between a desired state and an actual state. A desired state or set point is a condition crucial for life, comfort, or safety. The actual state of the system is compared to the set point, and if discrepancy is detected, a self correcting process is initiated: the process ends when the discrepancy reaches zero. Physiological need: a discrepancy between the set point and the actual physiological state. Incentives that aid in reducing a need or in restoring homeostasis can increase pleasure. Alliesthesia: refers to changes in a person"s milieu interieur that determine whether a stimulus is judged as pleasant or unpleasant. Actual temperature at many different sites of the body is measured by thermoreceptors, and this information is received by another part of the hypothalamus, where this info is integrated.