Motivation and Emotion

·         Motivation- a psychological process that directs and maintains your behavior toward a goal.

·         Motives- are the needs, wants, interests, and desires that propel or drive people in certain directions.

• -Instinct theory: we are motivated by our inborn automated behaviors

     Biological motives- hunger, thirst, sex. Sleep excretory

    Social motives- achievements order play autonomy affiliation

                 -Drive theory- biological internal motivation (Homeostasis)

·                 -Incentive theory- environmental motivation (no as much homeostasis more outside factors

*drive reduction theory

- DRT when individuals experience a need or drive they’re motivated to reduce that need or drive

-therefore drive theories believe that the source of motivation lies within the person (not from the environment)

·         Arousal- level of alertness, wakefulness, and activation in the CNS

       -the optimal level of arousal varies with the person and the activity

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Biological Basis of hunger

-hunger doesn't come from the stomach

-it comes from the brain it comes from the hypothalamus

motivation- hunger

·         -Glucose

-the form of sugar that circulates in the blood

- provides the major source of energy for body tissues

-glucose low: hunger

-Glucose high: feel full

-Body chemistry

-the hormone insulin coverts glucose to fat

- When glucose levels drop- hunger increase

Hypothalamus

·         -Lateral Hypothalamus

-When stimulated it makes you hungry

- When lesioned (Destroyed) you will never be hungry again

·         Ventromedial Hypothalamus

                       -when stimulated you feel full

-when lesioned you will never feel full again

 Hunger 

-eating for survival vs. eating for pleasure

-tasty food is more likely to be eaten even when full (Palatability)

-environmental cues matter

1. Commercials

2. Odors

3. Talking about it