Psychology 1000 Lecture Notes - Lecture 11: Amygdala, Autonomic Nervous System, Visual Cortex

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: Terry Biggs

Document Summary

What is motivation: a process that influences the direction, persistence and or vigour of goal- directed behavior. Perspectives on motivation: early view: instinct theory. Instincts motivate much behavior: modern evolutionary psychology. Adaptive significance: we are motivated to engage in behavior that promotes survival advantages: homeostasis. State of internal physiological equilibrium: drive theory. Physiological disruptions to homeostasis produce thrives to behave in a certain way (e. g. thirst influences drinking) Pulls organism into action: expectancy x value theory. Goal-directed behavior is jointly determined by expectation that behavior will lead to a goal and the value the individual places on the goal (incentive value) Motivation = expectancy x incentive value: extrinsic motivation. Performing an activity to obtain an external reward or avoid punishment. Performing an activity because you find it enjoyable or stimulating. Decreases in blood glucose levels are detected by liver sensors, which convert stored nutrients back into glucose. Drop-rise pattern may be a signal of hunger to the brain: stopping eating.