Exam 2: Eating and Feeding Disorders Flashcards
Anorexia Nervosa
Restriction of energy intake relative to needed requirements.
Significantly low body weight relative to age, sex, physical health, dev. trajectory
Features
-Perception distortion of weight and shape
-Use body weight and shape as measure of self-worth
-Extreme intense fear of becoming fat/overweight
-Emaciation
-Amenorrhea- Absence menstruation
-Common presence of anxiety and depression!
-low BP
-denial about being underweight
Anorexia Subtypes
1) Restricting– reduced caloric intake and increase in physical activity
2) Binge-eating/Purging
Epidemiology and Course of Anorexia Nervosa
-Highest rates in entertainment and sports industry
*Highest mortality rate of all disorders (starvation or suicide)
-Many cross over to Bullemia Nervosa
-Developmental factors like leaving for college, dating, etc. can trigger
-15-19 y/o higher risk group, see increase
Personality Traits & Comorbidity of Anorexia Nervosa
-Perfectionism
-Obsessionality
-Neuroticism (hypersensitivity, excessive worry)
-Low self-esteem
Often suffer from anxiety, depression, and other psych disorders
Bulimia Nervosa
Recurrent episodes of binge eating and recurrent compensatory behaviors
-Compensatory behaviors– actions used to counteract binge/prevent weight gain
Features
-Recurrent inappropriate compensatory behaviors
-Usually of normal weight or overweight
-Sense of lack of control w/ eating
-At least 1x per week for at least 3 months
Bulimia Nervosa Subtypes
1) Non-Purging–> fasting, excessive exercise
2) Purging
Epidemiology and Course
Secret engagement in binge eating and compensatory behaviors (cultural b/c stigma)
-More common females
-Late adolescence and early adulthood onset
Trait similarities of Bulimia to Anorexia
Perfectionism
Low self-esteem
Trait differences between anorexia
Bulimia–> More impulsive, higher novelty-seeking behavior
Anorexia–> More control w/ food intake
Personality Traits of Binge-Eating Disorder
-Less research on relationship btw. personality and BED
-Low self-esteem
-Low self-efficacy (control over behaviors)
Binge-Eating Disorder (BED)
Recurrent binge eating with no innapropriate compensatory behaviors
-Binge-eating episode–> discrete period where eat amount of food larger than what usually eat
Features
-Bing-eating no comp. behaviors
-Feel unable to control self/amount eat
-May eat even when not hungry or already full
-May eat alone b/c embarrassed about amount eaten
-Binging can be used for emotional comfort
*Most common eating disorder (5-8% obese individuals)
Personality Traits & Comorbidity of BED
Similar comorbidities as anorexia/bulimia (impulse control d/o, anxiety/depression, SUD)
Pica
Persistent eating of non-nutritive, non-food substances
Often seen in:
-children w/ developmental disabilities
-indiv. w/ intellectual disability
-schizophrenics
-Women and ppl of low SES (more common)
Potential causes: iron and zinc deficiencies, can also be related to stress/poor living environment
Rumination Disorder
Spit out food regurgitated, rechewed, swallowed, or spit out
-Prevalent in children
-Cannot be diagnosed with another feeding disorder
-Occurs in both sexes
-Onset infancy, childhood, or adolescence
Avoidant/Restrictive Food Intake Disorder (ARFID)
Restricted or inadequate eating
-Most common children and adolescents
-In adults, may be related to anxiety
-Not picky eating– show significant impairment in development and functioning and can lead to health complications