PSY 1101 Lecture Notes - Lecture 11: Orexin, Leptin, Ghrelin

• School: University of Ottawa
• Department: Psychology
• Course: PSY 1101
• Professor: All

Document Summary

Incentives: external stimuli that we want and we do things to get them. When ns is too aroused, it is uncomfortable. If we are motivated to get rid of tension. Drive reduction: if biological needs aren"t met, there is a tension and. Psychological needs (cid:523)food, warmth, water (cid:524), safety needs, love needs, Yerkes-dobson law: moderate arousal will give optimum performance self-esteem needs, self-actualization needs, self-transcendence needs: a hierarchy of motives (maslow) Chapter 11: motivation: motivational concepts (process that activates, energizes and direct behaviour, 4 major concepts: All members of same species will do the same. Unlearned: drives (drive reduction) and incentives, hunger, factors that are linked with hunger. Stomach: when stomach is contracting, it is hungry. You can have a full stomach and be hungry. Brain: hypothalamus, if stimulate lateral hyperthalamus we eat, if stimulate ventromedical part we stop eating: hunger hormones. *high levels leptin (released by fat cells; more fat cells, more leptin;