PS102 Lecture 17: psych lecture 17
Document Summary
Internal state that initiates, directs, and sustains behaviour. When motivates are internal they push us to act= drives. When motivates are external (or outside of us) = incentives (example: they pull or entice us to act) How does homeostasis work: autonomic nervous system. People are motivated to maintain an optimal level of arousal. Optimal level is different for all of us. Performance on task is best when the arousal level is optimal for that specific task. Motivated by internal factors (example: the satisfaction) Motivated by external factors that are not related to the task (incentives such as money, grades) Dopamine pathway: midbrain -> nucleus accumbens; prefrontal + frontal cortex; cingulate cortex. Internal cues motivate hunger by stimulating the hypothalamus in the brain, receptors from stomach and intestines and liver. External cues motivate hunger when we see, smell or taste foods that we like.
