Psy 101 Sec 8.2 Flashcards
Lateral Hypothalamus
A part of the hypothalamus involved in initiating, or “turning on,” eating.
Ventromedial hypothalamus
A part of the hypothalamus involved in regulating feelings of satiety.
Set point theory
The belief that brain mechanisms regulate body weight around a genetically predetermined “set point.”
Anorexia Nervosa
Anorexia nervosa involves self-starvation resulting in an unhealthy and potentially dangerously low body weight. It is characterized by both an intense fear of becoming fat and a distorted body image. Anorexia
Bulimia Nervosa
Bulimia nervosa is characterized by a repetitive pattern of binge eating followed by purging. Purging usually involves self-induced vomiting but may take other forms, such as excessive use of laxatives.
(a) _______ processes in the brain regulate hunger and appetite. The (b) _______ plays a pivotal role. It senses changes in blood sugar levels and depletion of fat from fat cells, which leads to the feelings of hunger that motivate eating. Neurotransmitters and (c) _______ also play important roles in regulating hunger and appetite.
a. ) Homeostatic
b. ) hypothalamus
c. ) hormones
Obesity is a complex problem that has multiple causes, including behavioral patterns, genetics, (d) _______ factors, and environmental and emotional factors. Genetics may affect basal metabolic rate and the number of (e) _______ cells in the body.
d. ) metabolic
e. ) fat
Identify and describe the types and causes of eating disorders. (f) _______ _______ is an eating disorder in which people starve themselves because of exaggerated concerns about weight gain. (g) _______ _______ is an eating disorder characterized by episodes of binge eating followed by purging. Purging is accomplished through self-induced vomiting or other means, such as excessive use of (h) _______. Many factors are implicated in eating disorders. They include cultural pressure on young women to achieve unrealistic standards of (i) _______, issues of (j) _______ and perfectionism, childhood abuse, family conicts, and possible disturbances in brain mechanisms that control hunger and satiety.
f.) Anorexia Nervosa
g.) Bulimia Nervosa
h.) Laxatives
I.) thinness
j.) Control
Which of the following does not describe what happens physiologically after a person has not eaten for a while? a. Blood sugar level drops.
b. Fat is released from fat cells.
c. The ventromedial hypothalamus signals that it is time to start eating.
d. The brain releases more neuropeptide Y.
C
If the lateral hypothalamus in a laboratory animal is stimulated, the animal
a. stops eating.
b. starves to death.
c. begins to eat even if it has just consumed a full meal.
d. becomes obese.
C
