PSY353H5 Lecture Notes - Lecture 9: Substantia Nigra, Basal Ganglia, Striatum
Document Summary
Psy353 lecture 9 notes: motivation and emotion (social relationships and reward) Lecture 9: motivation and reward these pictures are all things that humans find rewarding: different types of social relationships and how they are rewarding. What is (cid:862)reward(cid:863): you might feel good about something making you more likely to pursue it, positively reinforces preceding behaviours to obtain what makes you happy, need to attend to the stimulus. Distinct from wanting it: wanting what you will do to get it, can happen without you realizing it, motivation wanting, adjusting your behaviour to pursue that goal/reward. Reward neurocircuitry: basics: substantia nigra projects to the basal ganglia for motor function related to parkinson"s disease. 2002 (slide 9): positive correlations between change in circulating dopamine and rating of the high (drug, decreased d2 receptors in the striatum. How do you distinguish (cid:862)liki(cid:374)g(cid:863) fro(cid:373) (cid:862)wa(cid:374)ti(cid:374)g(cid:863): need to distinguish liking vs. wanting in order to measure data, can get different behaviour in liking vs. wanting conditions.
