Week 7 - Feeding & Eating Disorder; Sleep-Wake Disorders, and Substance Use Disorders Flashcards
What are ‘feeding and eating disorders?’
Psychological disorders involving disrupted eating patterns and maladaptive ways of controlling body weight.
What is ‘Anorexia Nervosa?’
An eating disorder primarily affecting young women, characterized by the maintenance of abnormally low body weight, distortions of body image, and intense fears of gaining weight.
What does ‘prevalence mean?’
The measure of a condition in a population at a given point in time (in this document referred to as point prevalence ); can also be measured over a period of time (e.g. a year).
What does ‘period prevalence’ mean?
Porportion of a population that has the characteristic at any point during a given time period of interest. “Past 12 months” is a commonly used period.
What is the prevalence of ‘Anorexia Nervosa?’
0.4% 12-month prevalence; meaning .10 times more
prevalent in females.
What are the essential features of ‘Anorexia Nervosa?’
Energy intake restriction, fear of gaining weight or becoming fat, distorted self-perceptions.
What are the common symptoms of ‘Anorexia Nervosa?’
Amenorrhea, lanugo, dry skin, brittle nails, intolerance/sensitivity to cold temperatures, cardiovascular and gastrointestinal problems.
What is ‘amenorrhea?’
Absence of menstruation - a possible sign of anorexia nervosa.
What is ‘Osteoporosis?’
A physical disorder caused by a calcium deficiency that is characterized by extreme brittleness of the bones (from the Greek osteon, meaning “bone,” and the Latin porus, meaning “pore”).
What is ‘lanugo?’
Is fine, soft, unpigmented hair that is often present in fetuses, newborns, and certain disease states. While IT is a normal finding in fetuses, its presence in an older person might be an indication of underlying pathology
What are the specifiers of ‘Anorexia Nervosa?’
Restricting type, and the binge-eating/purging type.
What is the major distinction between the subtypes of anorexia?
The distinction between the subtypes is supported by differences in personality patterns. Those with eating/purging type tend to have problems related to impulse control (binge eating habits, substance abuse, stealing); they tend to alternate because of periods of rigid control and impulsive behaviour. Those with restrictive type tend to be rigidly and obsessively controlled about their diet and appearance.
What is the ‘Restricting Type/specifier’ of Anorexia Nervosa?
During the last 3 months, the individual has not engaged in recurrent episodes of binge eating or purging behaviour (i.e., self-induced vomiting or the misuse of laxatives, diuretics, or enemas). This subtype describes presentations in which weight loss is accomplished primarily through dieting, fasting,
and/or excessive exercise.
What is the ‘Binge-eating/purging type/specifier’ of Anorexia Nervosa?
During the last three months, the individual has engaged in recurrent episodes of binge-eating or purging behaviour (i.e., self-induced vomiting or the misuse of laxatives, diuretics, or enemas).
What is ‘bulimia nervosa?’
An eating disorder is characterized by a recurrent pattern of binge eating followed by inappropriate compensatory behaviours to prevent weight gain and accompanied by persistent overconcern with body weight and shape.
What are the common symptoms of ‘Bulimia Nervosa?’
*Irritations of skin about mouth and hand (due to contact with stomach acid)
* Blockage of salivary ducts
* Decay of tooth enamel and dental cavities
* Stomach acid may damage taste receptors in the mouth (decreased sensitivity to the aversive taste of vomit)
* Abdominal complaints; stress on the pancreas (development of pancreatitis)
* Muscular weakness, cardiac irregularities, sudden death, lost of menstruation
How does the ‘binge-eating/purging type” specifier in anorexia differ from bulimia?
Although repeated binge eating and purging cycles occur in bulimia, bulimic individuals do not reduce their weight to anorexic levels.
What is an example of a ‘systems perspective?’
In terms of eating disorders, families are organization systems that are meant to resist overt change; within this perspective, an anorexic girl may be seen as maintaining dysfunctionality by displacing attention from family conflicts and marital tensions onto themselves. The girl might be identified as the problem when it is actually a dysfunctional family unit.
What is a ‘systems perspective?’
View that problems reflect the systems (family, social, school, ecological, etc.) in which they are embedded.
In terms of “losing weight,” which diagnosis is more “successful,” Anorexia Nervosa or Bulima Nervosa?
Anorexia, primarily because while both include purging, bulimia involves eating large amounts of food and using compensatory measures like purging. Purging only reduces caloric intake by approx. 50%. Generally, those with bulimia, generally, remain within 10% of their normal weight.
What are some examples of “compensatory measures?”
Self-induced vomiting, using laxatives and/or diuretics, fasting, exercise.
What are the cultural considerations regarding eating disorders?
Found overwhelmingly in Western cultures/influence. Some studies have shown African American adolescents to have less body dissatisfaction, few weight concerns, and a more positive self-image.
What are the psychological influences of eating disorders?
Women with anorexia often have significantly higher perfectionistic attitudes compared to healthy controls. Bulimia women tend to be both perfectionist and dichotomous (“black or white”) in their thinking patterns. Bulimic women also tend to struggle with interpersonal relationships.
* A diminished sense of control,
* Tendency toward perfectionism
* Black or white thinking
* High self-judgment
* Struggles with independence
What are the cognitive influences of bulimia nervosa?
Women with bulimic tendencies tend to have a dysfunctional cognitive style that may lead to exaggerated beliefs.