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Motivation Chapter 12 Copyright © 2007 Pearson Education Canada 1 Chapter Outline • • • • • • Defining motivation The hungry animal: Motives to eat The social animal: Motives to love The erotic animal: Motives for sex The competent animal: Motives to achieve Motives, values, and well-being Copyright © 2007 Pearson Education Canada 2 Defining Motivation • An inferred process within a person or animal that causes movement either toward a goal or away from an unpleasant situation – Intrinsic motivation • The pursuit of activity for its own sake – Extrinsic motivation • The pursuit of an activity for external rewards such as money or fame Copyright © 2007 Pearson Education Canada 3 The Hungry Animal: Motives to Eat • The genetics of weight • Culture, psychology, and weight • Weight and health: Body versus culture Copyright © 2007 Pearson Education Canada 4 The Genetics of Weight • Research suggests that heavy people are no more and no less emotionally disturbed than average weight people • Heaviness is not always caused by overeating • Set point – The genetically influenced weight range for an individual, maintained by biological mechanisms that regulate food intake, fat reserves and metabolism Copyright © 2007 Pearson Education Canada 5 Body Weight of Twins • Identical twins weigh and gain weight similarly • The complexity of mechanisms governing appetite and weight explains why “appetite suppressing” drugs fail in the long run Copyright © 2007 Pearson Education Canada 6 Body Weight of Twins • Identical twins are more similar in body weight than fraternal – Same whether raised together or apart • Genetic factors play a large role in body weight Copyright © 2007 Pearson Education Canada 7 The Role of Leptin • Leptin alters the brain chemistry that influences how animals eat as adults • Regulates weight by strengthening neural circuits in hypothalamus that reduce appetite and weakening neural circuits that stimulate • Has led to hypothesis that overfeeding infants while hypothalamus is developing may produce childhood obesity Copyright © 2007 Pearson Education Canada 8 The Complexity of Weight • Appetite suppressants alone often fail for individuals losing weight • Other factors include: – Other genes and body chemicals – Hormones which regulate hunger – Receptors in nose, mouth, and stomach regulate eating Copyright © 2007 Pearson Education Canada 9 The Overweight Debate • Is it weight or fitness? – Many researchers believe that individuals who are overweight and physically fit are actually healthier than individuals who are sedentary and thin Copyright © 2007 Pearson Education Canada 10 Culture, Psychology, and Weight • The environment and obesity • Cultural attitudes Copyright © 2007 Pearson Education Canada 11 The Environment and Obesity • Environmental factors related to weight gain: – Increased abundance of low-cost, varied high fat meals – The habit of eating high calorie food on the run instead of leisurely meals – The rise in energy saving devices such as remote controls – The speed and conveniences of driving rather than walking or biking – The preference for watching television or videos instead of exercising Copyright © 2007 Pearson Education Canada 12 Cultural Attitudes • In many cultures, where food is a rarer commodity, fat is viewed as a sign of health and affluence in men, sexual desirability in women • While people of all ethnicities and social classes have been getting heavier, the cultural ideal for white women has been getting thinner • The cultural ideal for men has also changed – Muscles used to mean a working class, now muscular bodies symbolize affluence Copyright © 2007 Pearson Education Canada 13 Cultural Attitudes • • • Although more Canadian men than women are overweight or obese, more Canadian women are currently dieting, even when their weight is in the healthy range Regardless of actual weight, research has shown that Canadian teenage girls want to lose weight, while most boys want to gain weight Cultural norms appear in the teens and persist into adulthood Copyright © 2007 Pearson Education Canada 14 Weight and Health: Biology versus Culture • People from cultures that regard overweight as a sign of health and sexiness are more likely to be obese • People from cultures emphasizing thinness are more likely to have eating disorders. • Many with eating disorders reflect an irrational terror of being too fat – Bulimia – Anorexia nervosa Copyright © 2007 Pearson Education Canada 15 Ideal Body Image • Which image is ideal for your sex? • Which comes closest to your own body? Copyright © 2007 Pearson Education Canada 16 Bulimia and Anorexia Nervosa • Bulimia – An eating disorder characterized by episodes of excessive eating (binges) followed by forced vomiting or use of laxatives (purging) • Anorexia Nervosa – An eating disorder characterized by fear of being fat, a distorted body image, radically reduced consumption of food, and emaciation Copyright © 2007 Pearson Education Canada 17 Influences on Eating Disorders • Presence of extremely slim television stars • Genetic mutations or set points that conflict with cultural standard • For men, increase in male responsiveness to cultural expectations may be related to their desire to be more “manly” • Unrealistic standards of beauty and selfcritical views • Psychological factors such as depression, anxiety, low self-esteem, perfectionism, distorted body image and pressure from others to lose weight Copyright © 2007 Pearson Education Canada 18 The Social Animal: Motives to Love • • • • • Biology of love The psychology of love The ingredients of love Attachment theory of love Gender, culture, and love Copyright © 2007 Pearson Education Canada 19 The Biology of Love • Neurological origins of passionate love begin in infancy when infants attach to the mother • Certain neurotransmitters and hormones involved in pleasure and reward are activated in both mother-baby, adult lover, and close friend bonds – Endorphins • Functional MRIs have shown other neurological similarities – Certain parts of the brains light up when they look at photos of sweethearts and biological children Copyright © 2007 Pearson Education Canada 20 The Psychology of Love • The need for affiliation – The motive to associate with other people, as by seeking friends, companionship, or love • Predictors of love – Proximity • Choosing friends and lovers from the set of people who are closest to us – Similarity • Choosing friends and lovers who are like us in looks, attitudes, beliefs, personality, and interests Copyright © 2007 Pearson Education Canada 21 The Ingredients of Love • Sternberg’s Triangular theory of love – Passion • Euphoria and sexual excitement – Intimacy • Being free to talk about things, feeling close to and understood by loved ones – Commitment • Needing to be with the other person; being loyal • Ideal love involves all three Copyright © 2007 Pearson Education Canada 22 The Attachment Theory of Love • Just as infants have attachment styles to their caregivers, adults have attachment styles to their partners – Secure or rarely jealous or worried about being abandoned – Avoidant or distrustful and avoids intimate attachments – Anxious, ambivalent or agitated and worried that partner will leave Copyright © 2007 Pearson Education Canada 23 Distribution of Attachment Style • A representative survey of adults from the United States indicated: – Securely attached 66% – Avoidant 25% – Anxious 11% Copyright © 2007 Pearson Education Canada 24 Gender, Culture, and Love • Males and females respond similarly to: – Love at first sight – Passionate love – Companionate love – Unrequited love – Being securely or insecurely attached – Being the break-up recipient Copyright © 2007 Pearson Education Canada 25 Gender, Culture, and Love • Men and women different in – How they express love • Men: doing; women: saying – How they define intimacy • Men: hanging out; women: sharing feelings • Men and women used to have different goals in choices of partners – Men: more romantic; women: more pragmatic – As more women have become economically self-sufficient, differences have decreased Copyright © 2007 Pearson Education Canada 26 The Erotic Animal: Motives for Sex • • • • The Biology of Desire The Psychology of Desire The Culture of Desire The Riddle of Sexual Orientation Copyright © 2007 Pearson Education Canada 27 The Biology of Desire • Hormones and sexual response • Arousal and orgasm Copyright © 2007 Pearson Education Canada 28 Hormones and Sexual Response • Testosterone appears to promote sexual desire in both sexes • Documentation included several studies of men and women • However, this is not simple relationship – Sexual behaviour also increases testosterone – Psychological factors are usually more important than hormones – Sexual offenders who are chemically castrated don’t always lose sexual desires Copyright © 2007 Pearson Education Canada 29 Arousal and Orgasm • Freud differentiated between “immature” clitoral orgasms and “mature” vaginal orgasms in women • Kinsey suggested that males and females had similar orgasms but that females were less sexual • Masters and Johnson asserted that women’s capacity for sexual responses surpassed men’s – Didn’t examine differences based on developmental, experiential or cultural factors Copyright © 2007 Pearson Education Canada 30 Arousal and Orgasm • What we know now – Physiological responses don’t always correlate with subjective experiences – Psychologists still disagree on whether there are sex differences in sex drive – Social psychologists suggest that • males’ sexual behaviour is more biologically determined, while • females’ sexual desires and responsiveness are more affected by circumstances, the specific relationship and cultural norms Copyright © 2007 Pearson Education Canada 31 The Sexual-Response Cycle Copyright © 2007 Pearson Education Canada 32 The Psychology of Desire • Motives for sex include: – Enhancement – Intimacy – Coping – Self-Affirmation – Partner Approval – Peer Approval Copyright © 2007 Pearson Education Canada 33 Sexual Coercion and Rape • Persistent gender differences occur in perceptions of, and experiences with sexual coercion – Of a representative sample of 3000 people, 25% of the women said that a man (usually husband or boyfriend) had forced them to do something sexually – Only 3% of the men said they had ever forced a woman into a sexual act Copyright © 2007 Pearson Education Canada 34 Possible Motivations for Rape • Peer approval • Anger, revenge, or desire to dominate and humiliate victim • Narcissism and hostility toward women • Contempt for victim and a sadistic pleasure in inflicting pain Copyright © 2007 Pearson Education Canada 35 The Culture of Desire • Sexual Scripts – Sets of implicit rules that specify proper sexual behaviour for a person in a given situation, varying with the person’s age, culture, and gender • The role of sexual scripts and African American women’s behaviour Copyright © 2007 Pearson Education Canada 36 Gender, Culture, and Sex • When men are rare: – men are more likely to have multiple sexual partners – there are increased divorce rates – there are increased single-parent families – women become more independent Copyright © 2007 Pearson Education Canada 37 The Riddle of Sexual Orientation • Factors that do not explain homosexuality: – – – – – – – A smothering mother An absent father Emotional problems Same-sex play in childhood and adolescence Parental practices Role models Seduction by an older adult Copyright © 2007 Pearson Education Canada 38 Biological Explanations for Homosexuality • Studies demonstrating brain differences have not been replicated • Prenatal exposure to androgens • May be moderately heritable Copyright © 2007 Pearson Education Canada 39 Sexual Orientation: Genetic Links • Identical twins have highest concordance (similarity) rates for sexual orientation – Same pattern for males and females • This suggests some genetic link in sexual orientation Copyright © 2007 Pearson Education Canada 40 Difficulty in Finding Origin of Homosexuality • Sexual identity and behaviour are different and can occur in different combinations – Some are sexually attracted to both men and women – Some are heterosexual in behaviour but have homosexual fantasies • Sexual behaviours can differ in different cultures Copyright © 2007 Pearson Education Canada 41 The Competent Animal: Motives to Achieve • The Effects of Motivation on Work • The Effects of Work on Motivation Copyright © 2007 Pearson Education Canada 42 Motives to Achieve • Need for achievement – A learned motive to meet personal standards of success and excellence in a chosen area Copyright © 2007 Pearson Education Canada 43 The Importance of Goals • Goals improve motivation when: – The goal is specific – The goal is challenging but achievable – The goal is framed in terms of approach goals instead of avoidance goals • Approach goals are framed as getting what is wanted • Avoidance goals are framed in terms of avoiding unpleasant experiences Copyright © 2007 Pearson Education Canada 44 Types of Goals • Performance Goals – Goals framed in terms of performing well in front of others, being judged favourably, and avoiding criticism • Mastery (Learning) Goals – Goals framed in terms of increasing one’s competence and skills Copyright © 2007 Pearson Education Canada 45 Praise for Effort vs. Praise for Intelligence Copyright © 2007 Pearson Education Canada 46 Expectations and Self-Efficacy • Self-fulfilling prophecy – An expectation that comes true because of the tendency of the person holding it to act in ways that bring it about • Self-efficacy – A person’s belief that he or she is capable of producing desired results, such as mastering new skills and reaching goals Copyright © 2007 Pearson Education Canada 47 The Effects of Work on Motivation • Working conditions • Opportunities to achieve Copyright © 2007 Pearson Education Canada 48 Working Conditions • Working conditions that increase job involvement, motivation, and satisfaction include: – – – – – Work provides a sense of meaningfulness Employees have control over part of work Tasks are varied Company maintains clear and consistent rules Employees have supportive relationships with superiors and co-workers – Employees receive useful feedback – Company offers opportunities for growth Copyright © 2007 Pearson Education Canada 49 Opportunities to Achieve • When person lacks fair chance to make it, he or she may be less than successful Copyright © 2007 Pearson Education Canada 50 Motives, Values, and Well-being • Approach-Approach Conflict – Equally attracted to two activities or goals • Avoidance-Avoidance Conflict – Choosing between the “lesser of the evils” • Approach-Avoidance Conflict – One activity or goal has both positive and negative elements • Multiple Approach-Avoidance Conflicts – Several choices, each with advantages and disadvantages Copyright © 2007 Pearson Education Canada 51 Maslow's Pyramid of Needs • Needs arranged hierarchically • Low-level needs must be met before trying to satisfy higher-level needs • Esteem: Status, respect, power • Self-actualization: Fulfill one’s potential Copyright © 2007 Pearson Education Canada 52 Universal Psychological Needs • Autonomy: feeling choices are based on true interests and values • Competence: feeling able to master hard challenges • Relatedness: feeling close to others who are important to you • Self-esteem: self-respect Copyright © 2007 Pearson Education Canada 53 Universal Psychological Needs Copyright © 2007 Pearson Education Canada 54