Chapter 9 Motivation and Emotion Flashcards
What are motives?
Motives are forces that move us to act in certain ways and not others
What is instinct?
Instinct is a genetically endowed tendency to behave in a particular way
What is homeostasis?
Homeostasis is the maintenance of equilibrium
Why do drives occur?
Drives are deviations from homeostasis that create an internal state of biological and psychological tension
What is drive-reduction?
Drive-reduction refers to the behavior that is performed in response to the drive returning the body back to homeostasis
What is the pain matrix?
The pain matrix consists of a distributed set of brain regions, including the amygdala, which underlies both the sensory and the emotional components of pain and gives rise to the associated behavioral response
What is NSSI (non-suicidal self-injury)?
Includes cutting, burning, stabbing, hitting, and excessive rubbing; when such behaviors are intentional, self-inflicted, and not for a socially sanctioned purpose
What are incentives?
Incentives are positive goals that we seek to achieve
What does it mean for something to be intrinsically rewarding?
An incentive that is an inherent part of the activity or object to which we are drawn (such as playing basketball)
What does it mean for something to be extrinsically rewarding?
An incentive that is not an integral part of the activity (such as mowing the lawn)
What does the glucostatic hypothesis state?
The glucostatic hypothesis states that what the body cares about most is blood levels of glucose, which is the sugar that serves as the body’s main energy source
What are the roles of the lateral and ventromedial hypothalamus in glucose regulation?
The lateral hypothalamus tells the body that there is a lack of glucose making us hungry, and the ventromedial hypothalamus is important for telling us that there is enough glucose in the body satiating us and stopping us from over eating.
What does the dual-center theory refer to?
The dual-center theory refers to the lateral hypothalamus serving as the “go” center for eating, while the ventromedial hypothalamus serves as the “stop center”
What are adipose cells?
Adipose cells are an important long-term energy resource which are provided by fat cells distributed throughout the body
What does the lipostatic hypothesis state?
According to the lipostatic hypothesis, when fat stores deviate from target levels, the body takes steps to restore homeostasis. When there is enough fat stores the body produces leptin, when fat stores deplete the stomach lining secretes ghrelin
What is the body weight set point?
The body weight set point is the act of eating enough to maintain the body weight of that organism
What is the role of the metabolic rate?
When there is a reduced caloric intake, the body compensates by lowering its metabolic rate or the rate at which it uses energy
What does the flexible floating set point refer to?
The flexible or floating set point refers to the fact that the set point can be adjustable by one’s gradual change in weight
What is the unit bias?
The unit bias is the size of a plate counting as a single portion leading to a role in rising levels of obesity
What is anorexia nervosa?
Individuals with anorexia nervosa have an intense fear of gaining weight, they genuinely believe they are fat although in many cases they are extremely, even dangerously thin