PSYC 100 Lecture Notes - Lecture 20: Homeostasis, Triune Brain, Limbic System

• School: McGill University
• Department: Psychology
• Course: PSYC 100
• Professor: Penelope Kostopoulos

Document Summary

What is emotion: theory: common sense, stimulus, subjective experience, body response, report, fight or flight: sympathetic and parasympathetic. Contemporary model of emotion: biological influences, physiological arousal, evolutionary adaptiveness, response pathways n the brain, spillover effect, psychological influences, cognitive labelling, gender differences, social-cultural influences. Limbic system: amygdala, lack of fear once it has been removed, hippocampus, develop earlier in childhood than the prefrontal regions, explains the risk behaviour in teenagers. The triune brain model: mclean, neocortex, logic, cortex, limbic system, emotions, amygdala, reptilian brain, action/survival, hypothalamus. Emotion and dopamine: pleasant vs unpleasant eating, different areas of the brain were active when eating chocolate transferred from pleasurable to unpleasant, dopamine drives us to do things, motivation can help us understand why? . Drive reduction theory: our behaviour is motivated by biological needs and wants to maintain homeostasis, balancing sympathetic and parasympathetic. Maslow"s hierarchy of needs: self-actualization, esteem, belonging, safety, physiological.