PSYC 100 Lecture Notes - Lecture 20: Fluid Balance, Homeostasis, Thermostat

• School: Queen's University
• Department: Psychology
• Course: PSYC 100
• Professor: Jordan Poppenk

Document Summary

Describe the terms motivation and drive and differentiate between regulatory and non- regulatory drives. Motivation: desires (internal or external), needs, and interests that arouse and activate an organism to move towards a specific goal. Drives: reversible internal conditions that orient individuals towards specific types of goals. Regulatory drives: hunger, thirst, thermoregulation, sleep, help maintain physiological homeostasis, needed for immediate survival. Non-regulatory drives: fulfill evolutionary purpose but indirectly, reproduction, safety, cooperation, not required for immediate survival but do promote our long term survival and the survival of our off spring. Physiological needs always come first, maslow"s hierarchy of needs, you need to fulfill the basic needs before things like self actualization. Describe the reward systems and mechanisms in the brain. Drives (or motivated states) are reward seeking states, and motivated by behaviour is reinforced by the pleasure we experience once the reward has been obtained. Electrical stimulation of the brain (esb): applying small electrical shocks to different parts of the brain.