MOTIVATION AND EMOTION
Motivation
- psychological process that directs and maintains your behavior towards a goal
Motives
- propel or drive people in certain directions
- instinct theory: we are motivated by our inborn automated behaviors
Biological Motives
- hunger, thirst, sex, and sleep
Social Motives
- achievement, play, autonomy, order, and affiliation
Drive Reducing Theory
- biological internal motivation
- homeostasis
Incentive Theory
- environmental motivation
- no homeostasis
Drive Reducing Theory
- need for food, leads to hunger, which leads to a person eating
Biological Basis for hunger
- hunger does not come from stomach
- hunger comes from the brain (hypothalamus)
Why hungry?
- Glucose: form of sugar that circulates in the blood and provides major source of energy for body tissues
- low glucose means you are hunger and high glucose means you are full
Body Chemistry
- Glucose is the hormone insulin converts glucose to fat
Lateral Hypothalamus
- when stimulated it makes you hungry
- when lesioned (destroyed) you won't be hungry
Ventromedial Hypothalamus
- when stimulated you feel full
- when lesioned you won't feel full again
Hunger Environment Factors
- availability of food
- learned preferences and habits
- stress
Set Point Theory
- Hypothalamus acts like a thermostat
- wants to maintain a stable weight
- activate Lateral Hypothalamus when you diet and activate the Ventromedial Hypothalamus when you start to gain weight
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