lecture 10 Flashcards
Personality Disorders (51 cards)
How are personality disorders clustered together
Cluster A: Odd or eccentric cluster
- Paranoid, schizoid, schizotypal
Cluster B: Dramatic, emotional, erratic cluster
- Antisocial, borderline, histrionic, narcissistic
Cluster C: Fearful or anxious cluster
- Avoidant, dependent, obsessive-compulsive
Define Personality Disorders
A persistent pattern of emotions, cognitions, and behavior that results in enduring emotional distress for he person affected and/or for others and may cause
difficulties with work and relationships
- pervasive and inflexible traits
- maladaptive
- ego-syntonic: don’t feel that treatment is necessary
What is the prevalence for each cluster of personality disorders
PD’s develop slowly overtime
Total prevalence for people who meet criteria for a PD = 10-12%
Prevalence Per Cluster =
Cluster A: 4%
Cluster B: 4%
Cluster C: 7%
What are some challenges associated with Personality Disorders
- Overlapping features across disorders
- Overlapping features across the categories
- High comorbidity among the PDs
- High comorbidity with other disorders
- Symptoms are highly subjective
- Misdiagnosis is common
- Personality researchers generally agree that personality
is dimensional, but can’t agree on a dimensional system
for PDs
How are Cluster A Paranoid Personality Disorders Characterised
Pervasive and unjustified mistrust and suspicion
- Preoccupied with unjustified doubts about the loyalty/
trustworthiness of others - Reluctant to confide in others because others may
use it against them - Reads hidden, threatening meaning into benign
events - Persistently holds grudges
- Perceives attacks on their character/reputation that
are not apparent to others and quick to counterattack - Has recurrent suspicions regarding fidelity of spouse
What is the prevalence for Paranoid Personality Disorders
1-2% (female:male 1:1)
List the causal factors for Paranoid Personality Disorders
- Modest genetic transmission
- Parental neglect/abuse
- Exposure to violent adults as children
- Traumatic brain injury
- Chronic cocaine use
What are the treatment options for Paranoid Personality Disorders
- Cognitive therapy to counter negativistic thinking
(lack of randomised control trials therefore this disorder isn’t well studied)
How are Cluster A Schizoid Personality Disorders Characterised
Pervasive pattern of detachment from social relationships AND Very limited range of emotions in
interpersonal situations
- Neither desires nor enjoys close relationships
- Almost always chooses solitary activities
- Has little interest in sex
- Takes pleasure in few activities
- Lacks close friends
- Appears indifferent to praise or criticism
- Shows emotional coldness, detachment, or flat affect
What is the prevalence of Schizoid Personality Disorders
1% - More common in males
* Significant overlap with autism spectrum
List the causal factors for Schizoid Personality Disorders
- Modest genetic transmission
- Impairment in the affiliative system
What are the treatment options for Schizoid Personality Disorders
- Focus on the value of interpersonal relationships
- Build empathy and social skills
(lack of randomised control trials therefore this disorder isn’t well studied)
How are Cluster A Schizotypal Personality Disorders Characterised
Pervasive pattern of social and interpersonal deficits marked by
acute discomfort with close relationships AND cognitive/perceptual distortions AND eccentricities in behaviour
- Ideas of reference
- Odd beliefs or magical thinking
- Usual perceptual experiences
- Odd thinking and speech
- Suspiciousness or paranoid ideation
- Inappropriate or constricted affect
- Odd or eccentric behaviour or appearance
- Lack of close friends
- Excessive social anxiety that does not diminish with familiarity
Does not occur exclusively during the course of schizophrenia,
bipolar disorder, depressive disorder with psychotic features, or autism
- Appears to be part of the schizophrenia spectrum
What is the prevalence for Schizotypal Personality Disorders
1% (more common in males)
List the causal factors for Schizotypal Personality Disorders
- Modest genetic transmission
- Childhood maltreatment or trauma, especially in men
- Low SES
What are the treatment options for Schizotypal Personality Disorders
- Low doses of antipsychotics
- SSRIs
- Address comorbid depression using CBT
How are Cluster B Antisocial Personality Disorders Characterised
Pervasive pattern of disregard for and violation of the rights of
others by the age of 15
* Failure to conform to social norms with respect to the law
* Deceitfulness–repeated lying, use of aliases, conning others
* Impulsivity or failure to plan ahead
* Irritability and aggressiveness, repeated assaults
* Reckless disregard for the safety of self and others
* Consistent irresponsibility—repeated failure to sustain
consistent work behavior or honour financial obligations
* Lack of remorse—indifferent to or rationalises hurting
others
* At least 18yo and doesn’t only occur during a course of
schizophrenia or bipolar disorder
What is the prevalence of Cluster B Antisocial Personality Disorders
2-3% overall
- 3% in males
- 1% in females
- 5:1 ratio
- Highly comorbid with substance use
How do Antisocial Personality Disorders differ from Psychopathology
Antisocial PD = heavy emphasis on observable behaviours
- e.g. lying, getting into fights, failing to honour financial
obligations
Psychopathology = more emphasis on personality traits
- e.g. superficial charm, lack of empathy, manipulativeness
List the causal factors for Cluster B Antisocial Personality Disorders
- Modest genetic transmission
- Low family income
- Having a young mother
- Being raised in a single-parent household
- Conflict between parents
- Delinquent sibling
- Neglect
- Large family size
- Harsh discipline
- Delinquent peers
- Physical/sexual abuse
How can Gene-Environment Interactions impact risk of ASPD
Monoamine Oxidase A Gene (MAOA gene) is responsible for breaking down neurotransmitters.
Therefore:
* Low MAOA activity + maltreatment = ↑ risk of ASPD
* High MAOA activity + maltreatment = ↓ risk of ASPD
* Low MAOA activity + NO maltreatment = ↓ risk of
ASPD
Why is Antisocial Personality Disorder highly comorbid with substance use
- they share common genetic vulnerabilities
- environmental factors determine which disorder develops
- those with antisocial personality disorder tend to have poor impulse control, leading them to engage in riskier behaviours than those without ASPD
What genetic and environmental risks interact to result in Antisocial Personality Disorder
Genetic propenseties for a difficult temperament,
hyperactivity, attentional difficulties, etc
Environmental risks:
* Inadequate parenting
* Disrupted family bonds
* Poverty
* Deviant peers
* Poor relationships with peers, teachers, partners,
employers
What are the treatment options for Antisocial Personality Disorders
- Few seek treatment on their own
- Antisocial behavior is predictive of poor prognosis
- Emphasis is placed on prevention and rehabilitation
- Often incarceration is the only viable alternative
- May need to focus on practical (or selfish) consequences (e.g., if you assault someone you’ll go to prison)