Motivation and emotion: chapter 9

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Explain how arousal theory relates to motivation. (Page 390)

According to arousal theory, humans seek an optimal level of arousal, and what is optimal is based on individual differences. Behaviors can arise out of the simple desire for stimulation, or arousal, which is a level of alertness and engagement in the world. Because humans have different optimal levels in terms of their need for arousal and sensory stimulation, people are motivated to seek out activities that fulfill this need.

Indicate how display rules influence the expression of emotion. (Page 412)

Although the expression of basic emotions appears, in many cases, to be universal, culture acts like a filter to determine the specific context in which to exhibit them. That is, the display rules of a culture provide the framework or guidelines for when, how, and where an emotion is expressed.

Outline the major eating disorders. (Page 400)

Anorexia nervosa is a serious, life-threatening eating disorder characterized by a significantly low body weight in relation to age, sex, development, and physical health; an extreme fear of gaining weight or getting fat; an altered and distorted sense of body weight and figure; and self-imposed restrictions on "energy intake" (calories) needed to maintain a healthy weight. Bulimia nervosa is characterized by recurrent episode of binge eating followed by purging (self-induced vomiting, misuse of laxatives, fasting, excessive exercise). Binge-eating disorder is characterized by episodes during which a larger amount of food is consumed than most people would eat in a similar amount of time under similar circumstances. As in bulimia, the individual feels unable to control eating during that period of time, but the difference is that there are no excessive weight control or purging behaviors.

Discuss evidence to support the idea that emotions are universal (Page 411)

Darwin suggested that interpreting facial expressions is not something we learn, but rather an innate ability that evolved because it promotes survival. Sharing the same facial expressions allows for communication. In research with an isolated group of indigenous people in New Guinea, the results indicated that the same facial expressions represent the same basic emotions across cultures. In addition, the fact that children born deaf and blind have the same types of expressions of emotion (for example, happiness and anger) suggests the universal nature of these displays.

Define emotions and explain how they are different from moods. (Page 404)

Emotion is a psychological state that includes a subjective or inner experience. It also has a physiological component and entails a behavioral expression. Emotions are quite strong, but they don't generally last as long as moods. In addition, emotions are more likely to have an identifiable cause (that is, a reaction to a stimulus that provoked it), which has a greater probability of motivating a person to take some sort of action. Moods are longer-term emotional states that are less intense than emotions and do not appear to have distinct beginnings or ends.

Summarize evidence pointing to the biological basis of happiness. (Page 417)

Happiness has heritability estimates between 35% and 50%, with genetic inheritance believed to be as high as 80% in longitudinal studies. There may be a set point for happiness, suggesting that we all have a degree of happiness around which our happiness levels will hover. As we consider our level of happiness and strive for personal happiness, we should keep in mind our set point, as it is strong, and directed by our genes and temperament.

Discuss how the stomach and the hypothalamus make us feel hunger. (Page 395)

In a classic experiment, researchers confirmed the stomach and brain both work to indicate hunger. When glucose levels dip, the stomach and liver send signals to the brain that something must be done about this reduced energy source. The brain, in turn, initiates a sense of hunger. Signals from the digestive system are sent to the hypothalamus, which then transmits signals to higher regions of the brain. When the lateral hypothalamus is activated, appetite increases. On the other hand, if the ventromedial hypothalamus becomes activated, appetitite declines, causing an animal to stop eating.

Summarize instinct theory. (Page 388)

Instinct theory proposes that through evolution some behaviors are etched into our genetic makeup, and are consistent from one member of the species to the next. Instincts are complex behaviors that are fixed, unlearned, and consistent within a species. Although they apply to other animals, there are limited data suggesting that humans display instincts.

Define motivation. (Page 386)

Motivation is a stimulus that can direct the way we behave, think, and feel. A motivated behavior tends to be guided (that is, it has a direction), energized, and persistent. When a behavior is reinforced, an association is established between the behavior and its consequence. With motivated behavior, this association becomes the incentive, or reason to repeat the behavior.

Identify the major theories of emotion and describe how they differ. (Page 406)

The James-Lange theory of emotion suggests there is a stimulus that initiates the experience of a physiological reaction and/or a behavioral reaction, and it is this reaction that leads to an emotion. The Cannon-Bard theory of emotion suggests that we don't feel emotion because of physiological and behavioral reactions, but rather environmental stimuli are the starting point for emotions. The Schachter-Singer theory of emotion suggests there is a general pattern of physiological arousal caused by the sympathetic nervous system, and this pattern is common to a variety of emotions. The experience of emotion is the result of two factors: (1) physiological arousal and (2) a cognitive label for this physiological state (the arousal). The cognitive appraisal theory suggests that the appraisal or interpretation of interactions with surroundings causes an emotional reaction.

Describe the role the amygdala plays in the experience of fear. (Page 414)

The amygdala is an almond-shaped structure found in the temporal loves. It is a key part of the limbic system and appears to be central to our experience of fear. When people view threatening images, or even look at an image of a frightened face, the amygdala is activated. When confronted with a fear-provoking situation, the amygdala enables an ultrafast and unconscious response. The amygdala also plays an important role in the creation of emotional memories. This is useful because we are more likely to survive if we remember threats in our environments.

Describe drive-reduction theory and explain how it relates to motivation. (Page 389)

The drive-reduction theory of motivation suggests that biological needs and homeostasis motivate us to meet these needs. If a need is not fulfilled, this creates a drive, or state of tension, that pushes us or motivates behaviors to meet the need. Once a need is met, the drive is reduced, at least temporarily, because this is an ongoing process, as the need inevitably returns.

Outline Maslow's hierarchy of needs. (Page 390)

The needs in Maslow's hierarchy, often depicted as a pyramid, are considered to be universal and are ordered in terms of the strength of their associated drive, with the most critical needs, those that are physiological, at the bottom. Moving up the pyramid are increasingly higher-level needs: safety needs; love and belongingness needs; esteem needs; self-actualization; and self-transcendence. Maslow suggested that one's most basic needs must be met before higher-level needs motivate behavior.

Explain how self-determination theory relates to motivation. (Page 393)

This theory suggests that humans are motivated in the direction of growth and optimal functioning. According the the self-determination theory, we are born with three universal, fundamental needs: the needs for competence (reaching goals through mastery of day-to-day responsibilities), relatedness (creating meaningful and lasting relationships), and autonomy (managing behavior to reach personal goals). The focus is not on overcoming one's shortcomings, but on moving in a positive direction.

Explain how extrinsic and intrinsic motivation impact behavior. (Page 386)

When a learned behavior is motivated by the incentive of external reinforcers in the environment, there is an extrinsic motivation to continue that behavior. The motivation comes from consequences that are found in the environment or situation. Intrinsic motivation occurs when a learned behavior is motivated by the prospect of internal reinforcers. Performing a behavior because it is inherently interesting or satisfying exemplifies intrinsic motivation, when the reinforcers originate from within.


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