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Chapter 12

Psychology 1000 Chapter 12: psych 1000 chapter 12

Course Code
PSYCH 1000
Nick Skinner

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Motivation: refers to a process within a person or animal that causes that organism to move toward a
goal or away from an unpleasant situation.
Intrinsic Motivation: The pursuit of an activity for its own sake
Extrinsic Motivation: The pursuit of an activity for external rewards such as money or fame
Set point: the genetically influences weight range for an individual; it is maintained by biological
mechanisms that regulates food intake, fat reserves and metabolism.
- The usual form of the gene called obese causes fat cells to secrete a protein which researches
have named leptin.
- The 5 leading environmental influences on weight include:
1. the increased abundance of fast food and processed foods
2. The widespread consumption of high sugar, high calorie soft drinks
3. The sharp decline in exercise and other expenditures of energy
4. The increased portion sizes of food and drink
5. The abundance of highly varied foods
- Bulimia and anorexia are the most well-known eating disorders and occur most often among young
white women.
Bulimia: characterized by episodes of excessive eating followed by forced vomiting
Anorexia: fear of being fat, a distorted body image, reduced consumption of food
- What theory seems to explain why thin people rarely come fat and fat people have so much trouble
losing weight? (Set-point theory)
- What hormone helps regulate appetite by telling the hypothalamus that the body has stores enough
fat? (Leptin)
- The hormone oxytocin plays a great role in the attachment-caregiving system, influencing feelings and
expressions of love and care.
Endorphins: chemical substances in the NS that are similar in structure and action to opiates; they are
involved in pain reduction, pleasure and memory and are known technically as endogenous opioid
Proximity effect: the people who are nearest to you geographically are most likely to be dearest to you
Similarity effect: similarity in looks, attitudes, beliefs, values, personality is attractive to human
beings; we tend to choose friends and loved ones who are most like us.
The Attachment Theory of Love: People’s attahet stles as adults derie i large part fro ho
their parents cared for them
QUIZ TIME: - The two major predictors of whom we love are? (Proximity and similarity) - True or false:
Western societies were more likely than women to marry for love (TRUE)
Leonore Tiefer: osered for hua eigs se is ot a atural at
- There are many categories that focus on the motives for sex. These include: pleasure, intimacy,
insecurity, partner approval, peer approval and attaining a goal.
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