| A | B |
| Motivation | various physiological and psychological factors that activate behavior and energize and direct that behavior toward a goal |
| Instincts | innate tendencies that determine behavior |
| Need | a biological or psychological requirement for the well-being of an organism |
| Drive | a condition of arousal or tension produced by a need that motivates an organism toward a goal |
| Homeostasis | the tendency of all organisms to correct imbalances and deviations from their normal state |
| Incentive | environmental factor such as an external stimulus, rein forcer, or reward that motivates our behavior |
| Extrinsic motivation | engaging in certain activities or behaviors that either reduce biological need or help a person obtain external incentives |
| Intrinsic motivation | engaging in certain activities because they are personally rewarding or because they fulfill our beliefs and expectations |
| Lateral hypothalamus | the part of hypothalamus that produces hunger signals |
| Ventromedial hypothalamus | the part of the hypothalamus that causes one to slow down or stop eating altogether if stimulated |
| Fundamental needs | - biological drives or needs that must be satisfied in order to maintain lice |
| Psychological needs | urges to belong and to give and receive love and urges to acquire esteem through competence and achievement |
| Self-actualization needs | the pursuit of knowledge and beauty or whatever else is required for the realization ones unique potential |
| Emotion | a state of feeling that involves a set of complex reactions to a stimulus involving subjective feelings, Physiological arousal, and observable behavior |