Psychopathology 1: Eating Disorders Flashcards
Common mental health disorders
- Symptoms regarded as extreme forms of ‘normal’ emotional experiences
such as depression, anxiety or panic, (The
Mental Health Foundation)
‘Less common mental health disorders ‘
- Disorders whose ‘psychotic’ symptoms
interfere with a person’s perception of reality and
may include hallucinations, delusions or
paranoia, with the person seeing, hearing,
smelling, feeling or believing things that no one
else does, (The Mental health Foundation)
What is Anorexia Nervosa?
- Mental illness with highest rates of mortality and relapse, and no approved pharmacological treatment.’ Temizer et al (2022)
- Characterised as self starvation syndrome
- Major sign is emaciation caused by food refusal
- Intense fear of becoming fat /gaining weight.
- Body Image disturbances.
- It is proposed and predominantly affects women
Sub-types of AN and personality characteristics
- The restricting type (ANR)
- The binge eating/ purging type (ANBP)
Individual differences in Anorexia Nervosa
- Considerable research attempted to identify different aspects of personality or temperament involved in mental health issues
- Research identified distinct personality traits in individuals with eating disorders- relatively specific to each disorder- argued they can distinguish eating disorder sufferers from healthy people
- Tend to have high levels of harm avoidance, a personality trait characterized by worrying, pessimism, and shyness, and low levels of novelty seeking, which includes impulsivity and preferring new or novel things (Fassino et al., 2002)
Individual differences in Anorexia Nervosa
- Different subtypes of anorexia have slightly different personality traits, with the binge/purge subtype showing slightly higher levels of
impulsivity and novelty-seeking (Bulik et al., 1995) - This subtype tends to be from an older age group, they may have substance use
disorders, display suicidal behaviour, and demonstrate more lack of control (Klump et al., 2000) - Demonstrated higher levels of neuroticism (characterized by depression, anxiety, worry, and
moodiness). (Bollen & Wojciechowski, 2004) - The restricting subtype had higher levels of persistence and is generally associated with younger age, perfectionist tendencies, constraint in eating / other behaviours. (Klump et al., 2000).
Diagnosing- DSM – IV changed to DSM -5 in 2013
- Refusal to maintain weight (less than 85% normal)
- Changed to restricted calorie intake, focus is now on behaviour rather than refusal which implies intention (removed)
- Intense fear of becoming fat/ denial of low weight
- Distorted body image
- Amenorrhea (least 3 consecutive menstrual cycles)
Diagnostic criteria of AN using DSM - 5
- Persistent restriction of energy intake leading to
significantly low body weight - Either an intense fear of gaining weight or of
becoming fat, or persistent behaviour that
interferes with weight gain - Disturbance in way one’s body weight or shape
is experienced, undue influence of body shape and weight on self-evaluation, or persistent lack of recognition of the seriousness of the current low body weight
Primary symptoms of Anorexia Nervosa
- Denial
- Depression
- Mood swings
- Social Withdrawal
- Lack of sexual interest
- Low self esteem
Secondary Symptoms of Anorexia Nervosa
- Constipation
- Low Blood Pressure
- Hypothermia
- National Association of Anorexia Nervosa and Associated Disorders (USA) 2013 reported that 5 – 10% of anorexics die within 10 years after contracting the condition; 18-20% of
anorexics will be dead after 20 years and only 30 – 40% ever fully recover
Bulimia Nervosa
- Referred to as ‘binge-purge syndrome’ because massive quantities of food are eaten, then measures taken to rid the body of potential fat – producing calories
Bulimia Nervosa DSM -5 Criteria
- Recurrent episodes of binge eating
- Eating, in a discrete period of time an amount of
food that is larger than most people would eat during a similar period of time and under similar circumstances - Sense of lack of control over eating
during the episopde - Recurrent inappropriate compensatory behaviour in order to prevent weight gain, such as self-induced vomiting
- The binge eating and inappropriate compensatory behaviours both occur, on average, at least once a week for three months
- Self-evaluation is unduly influenced by body shape and weight
- Estimated those with eating disorder, 40% are Bulimic (Adult National Morbidity Survey)
- 30% of women with BN have a lifetime history of
AN, (Keel & Klump)
Purging BN (BNP)
Involves the regular use of
purging methods to control weight
Non purging BN (BPnP)
- Regular use of non-purging methods
Individual differences in Bulimia Nervosa
- Demonstrate high levels of harm avoidance, however can coexist alongside high levels of novelty seeking (Fassino et al., 2002)
- Brown, Haedt-Matt, & Keel, (2011) found those with binge/ purge subtype of anorexia show traits midway between restricting anorexia and bulimia
- High levels of impulsivity, emotion dysregulation, and anxiety in women with bulimia
- Greater impulsivity associated with more frequent purging behaviours
- Scientists found people who have trouble regulating amount of dopamine in brains have higher levels of novelty-seeking (Zald et al.,
2008), and that this also occurs in women with bulimia (Groleau et al., 2012)
Secondary Symptoms Of BN
- Depression
- Mood swings
- Suicidal tendencies
- Awareness of problem
- Often ‘normal’ weight
- Cyclical nature of disorder
Consequences of BN
- Potassium Depletion
- Weakness
- Cardiac Arrhythmia
- Renal damage
Personality factors in AN & BN- King’s College London 5 obsessive-compulsive personality traits
- Perfectionism
- Inflexibility
- Being rule driven
- Drive-for-order
- Excessive doubt and cautiousness
- Women with both AN & BN significantly more
likely show signs of these traits in childhood - Childhood obsessive-compulsive personality traits showed high predictive value for development of eating disorders in
adulthood (Anderluh et al., 2003)
Aetiology of Eating Disorders
- No single factor responsible
- Range of Psychological, Sociological and
Biological processes - Current research has a good idea of what risk
factors are involved but little insight into how they
are involved.
Södersten, P., Brodin, U., Zandian, M., & Bergh, C.
(2019).
Biological/ Genetic factors
First degree relatives of females with AN are more likely to develop an ED
- Monozygotic twins have higher concordance rates than dizygotic twins for the development of ED
- Hypothalamus area linked to controlling eating, and malfunctioning of this structure has been put forward as a possible explanation of A.N. and B.N. (Shaikh 2011)
Neurotransmitter involvement
- Altered serotonin levels - correlations between
anorexic/bulimic behaviour and changes in levels of serotonin - With higher levels of harm avoidance associated with higher levels of serotonin in the brain (Cloninger, 1985)
- Scientists found people who have trouble regulating the amount of dopamine in their brains have higher levels of novelty-seeking (Zald et al., 2008), and that this also occurs in women with bulimia (Groleau et al., 2012)
- Serotonin activity will produce greater alterations in altering serotonin activity and lowering mood in women than in men
Brain areas and ED
- Brain abnormalities found in people
with ED - Areas of brain appear to be shrunken
- Total white & grey matter sig. decreased, it is not clear whether this caused or resulted from ED, (de Zwann 2006)
- Addictive, maladaptive aspects of excessive
exercise and food restriction may effect brain
changes (Aoki 2021) - Occupations that demand excessive
exercise / food restriction are at risk
ED in ethnic minorities-contradictions
- Stereotypes about who gets ED preventing people from minoritized groups from seeking and
getting medical treatment (white women only) - Themes evident in disordered eating are:
the pursuit of identity, power, self-esteem & respect- pervasive in the lives of oppressed
ED are associated with negative affect, & mood
disorders, low self esteem and perfectionism
The Treatment of Eating Disorders
ED difficult to treat:
- Sufferers deny they are /underweight/have a
problem/ill - Individuals (esp. AN) need medical as well
as psychological treatment, to prevent
death - ED highly co morbid with other psychological disorders, which may make treatment difficult and complex
National service framework: mental
health
- Sets out government’s quality standards for
mental health services - SCOFF questionnaire is a brief and
memorable tool designed to detect eating
disorders and aid treatment - Showed excellent validity in a clinical population and reliability in a student population Luck et al (2022)
Physical
- Bed rest
- Restoration of body weight
- Intravenous feeding
- Maintain body weight
- Drug Therapy
Psychodynamic- focus-alter the irrationality
- Psychotherapy
- Family therapy
- Cognitive Behavioural therapy
Pharmacological treatments
- Both AN & BN frequently co morbid with
major depression
-Antidepressants are used to treat
- Pharmacological treatments have tended to
be less successful with AN, although limited
studies have been done