PSYC 100 Lecture Notes - Lecture 2: Homeostasis, Hypothalamus, Limbic System

• School: Queen's University
• Department: Psychology
• Course: PSYC 100
• Professor: Rana Pishva

Document Summary

Internal and external desires, needs, and interests that arouse and activate an organism to move toward a specific goal. Reversible internal conditions that orient individuals towards specific types of goals. Are reward-seeking states; motivated behaviour is reinforced by pleasure of obtaining reward. Maintain physiological homeostasis; needed for immediate survival: regulation of internal conditions (e. g. temperature, non-regulatory. Central state theory: hubs/nuclei in the brain involve detection of imbalances (e. g. low levels of glucose), decision making, and motor output. Drive-reduction theory: drives produce an unpleasant state that motivates behaviour; these behaviours reduce these drives and restore homeostasis. Incentive theory: behaviours are motivated/ pulled by desirable goals or outcomes in the environment. Over-justification effect: people who shift from intrinsic to extrinsic rewards stop the activity when the reward is removed. Behaviour motivated by pleasure that is not directly related to survival or homeostasis. James-lange theory: physiological responses determine our conscious experience of emotion. Autonomic nervous system response comes before emotional response.