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Lecture 11

PSY100Y5 Lecture Notes - Lecture 11: Libido, Homeostasis, Ostracism


Department
Psychology
Course Code
PSY100Y5
Professor
Dax Urbszat
Lecture
11

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Motivation and Emotion
1. Outline for Studying
a. Motivation
i. Concepts and theories
ii. Hunger, sex, social
b. Emotion
i. Elements, theories
2. Motivation
a. Relates to the study of processes involved in goal-directed behaviour
b. Motives are needs, wants, interests and desires that propel people in certain
directions
3. Drive Theories
a. Seeking homeostasis
i. A drive is an internal state of tension that motivates us to engage in
activities that reduce this tension
ii. Disruptions of preferred equilibrium
4. Incentive Theories
a. Regulation by external stimuli
b. Incentive is an external goal that has the capacity to motivate behaviour
5. Evolutionary Theories
a. Maximization of reproduction
i. Aggression and sex drives
ii. Need to belong
6. Hunger Motivation
a. Biological
b. Environmental
7. Biological Motivation for Hunger (Internal) (***MC)
a. Neural circuits passing through the hypothalamus to regulate hunger
b. Stomach can send a variety of signals to brain to signal satiety
8. Environmental Motivation for Hunger (External)
a. It’s not all about internal hunger
b. What if the food is really good? What is there’s a lot of it? What about greater
variety?
c. Presence of others
d. Stress causes 50% of us to eat less, and 50% of us to eat more
e. Digestive system tries to shut off when under stress
9. Sexual Motivation
a. Sexual desire (libido) influenced by genes, biology, and social/cultural factors
b. Neurotransmitters serotonin and dopamine appear to play a role
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