Psychological Disorders Flashcards
psychological disorder
- Pattern of behaviour or experience that is distressing and painful to the person
- leads to disability or impairment in important life domains (whether visible or not)
- associated with increased risk for further suffering, loss of function, death, or confinement
Abnormal/clinical psych
- study of mental disorders
- aka psychopathology
Defining abnormal
- DSM = leading text for defining “abnormality” and diagnosing it; ICD-10 Classification is the text published by the WHO that is also sometimes used
- Can be culturally/socially defined; (ie. what’s unacceptable?); being defined as abnormal might lead to stigma or a self-fulfilling prophecy; but also improves research
- Can be statistically defined (ie. what’s rare? ex. colour blindness)
- The psychological definition is not the same as being “weird”
- Abnormality = “statistical infrequency” (more than 2 standard deviations above or below the mean)
Personality vs. Disorder
Most psychologists believe that mental illness/disorder is not a part of personality; separate construct that should be managed
Personality Disorder (generally)
- Extreme and problematic degree of one or more aspects of personality
- Ie. Extremely high levels of neuroticism, introversion, etc.
Personality Disorder (according to DSM-5)
- Enduring pattern of experience and behaviour that differs greatly from expectations of a person’s culture; displayed across a variety of situations with long history
- Symptoms of personality disorders can be viewed as maladaptive variations within the domains of traits, emotions, cognitions, motives, and self-concept
- Lead to distress in key areas of life, such as work and relationships; all personality disorders have impaired social relations
- Pattern must not be attributable to drug abuse, medication, or other medical condition
General Personality Disorder
personality change due to another medical condition – ie. Frontal lobe lesion
Personality Disorders: Cluster A
- The “eccentric” cluster
- Persons with these disorders appear odd and eccentric; do not get along well with others
- paranoid, schizoid, and schizotypal personality disorders
Paranoid personality disorder
- Cluster A
- More common in males
- suspects deceit or malicious intent, preoccupied with doubts about others’ trustworthiness, bears grudges, perceived attacks on character, recurrent suspicions
- Unabomber may have had this
Schizoid personality disorder
- Cluster A
- more common in males
- neither desires nor enjoys close relationships, prefers to be alone, detached, indifferent to praise/criticism of others
Schizotypal personality disorder
- Cluster A
- more common in males
- want social relationships but can’t enter them to to excessive social anxiety, odd beliefs/behaviours, lack of close friends
- mostly due to genetic causes
Personality Disorders: Cluster B
- The “erratic cluster”
- Persons with these disorders appear erratic and emotional; have difficulties getting along with others
- Antisocial, borderline, histrionic, and narcissistic personality disorders
Antisocial Personality Disorder
- Cluster B
- more common in males
- Failure to conform to social norms, lying, deceitfulness, impulsivity, aggressiveness, disregard for safety of self or others, lack of remorse, irresponsible
- Must be 18; must have evidence of conduct disorder before age 15
- Up to 70-100% of men in prison meet criteria for APD
- Extreme APD -> psychopathy/sociopathy
- Unabomber could have been diagnosed with this, but he didn’t display symptoms prior to age 15
- environmental and genetic causes
Borderline Personality Disorder
- Cluster B
- more common in females
- INSTABILITY -> Pattern of unstable & intense relationships, unstable self-image, frantic efforts to avoid abandonment, recurrent suicidal or self-harm behaviour, emotional instability/reactivity, strong emotions -> ex. inappropriate/intense anger
- largely due to environment, not genes - childhood neglect
- Anakin Skywalker/Darth Vader may have BPD
Histrionic Personality Disorder
- Cluster B
- more common in females
- EXCESSIVE ATTENTION SEEKING, EMOTIONALITY, uncomfortable when not centre of attention; inappropriate, sexually seductive/provocative behaviour; shallow emotions; theatricality; suggestible, easily influenced
Narcissistic Personality Disorder
- Cluster B
- more common in males
- Grandiose sense of self-importance, believe they’re special/unique, requires excessive admiration, interpersonally exploitative, lacks empathy, envious of others
- Trump may not actually have this disorder -> doesn’t necessarily suffer from distress due to narcissism
Psychopathy & Sociopathy: nature vs. nurture
- Nature: Evidence for reduced fear response (low amygdala activity) and guilt/empathy response (low prefrontal cortex activity); brains show functional and structural differences; heritability of APD/psychopathic traits estimated at 69%
- Nurture: Individuals with APD/psychopathy more likely to have been abused early in life
Psychopathy
- Not present in DSM, but an extreme form of Antisocial personality disorder
- emphasizes more subjective traits, such as incapacity to experience guilt, superficial charm (glib), and callous social attitudes
- Only 25-28% of men in prison would be diagnosed with psychopathy according to the Psychopathy Checklist
- 21% of corporate professions have clinically significant levels of psychopathic traits -> “successful psychopaths”
- Robert Hare developed psychopathy checklist with 2 main clusters of traits: emotional/interpersonal traits and social deviance
- Tends to decline with age
Sociopathy
- Not present in DSM, but an extreme form of Antisocial personality disorder
- compared to psychopaths, some suggest they’re less organized/more apparent in their behaviour, less violent, and maintain some emotions; result from early life experiences, while psychopathy is more innate
Personality Disorders: Cluster C
- the “anxious” cluster
- Persons with these disorders appear anxious, fearful, and apprehensive; have trouble with social relationships
- avoidant, dependent, and obsessive-compulsive personality disorder
Avoidant Personality Disorder
- Cluster C
- more common in females
- Avoids activities over fears of criticism and rejection, restraint in relationships, inhibited, views self as socially inept and inferior, fear of embarrassment
- Unabomber may have had this
Dependent personality disorder
- Cluster C
- more common in females
- Difficulty making decisions on one’s own, difficulty expressing disagreement, difficulty working or doing things on one’s own, uncomfortable or helpless when alone, fears of being left to care for him/herself, seeks constant reassurance
Obsessive-compulsive personality disorder
- Cluster C
- more common in males
- NOT the same as OCD
- Preoccupied with details; detrimental perfectionism; excessively devoted to work; overly conscientious and inflexible; rigidity and stubbornness
Prevalence of Personality Disorders
- Estimated total prevalence rate for having at least one personality disorder is between 9-13%
- Obsessive-Compulsive personality disorder is most common; dependent least common
- Majority of personality disorders are more common in males; overall prevalence fairly equal
- 25-50% of people with personality disorder have another disorder (comorbidity) -> makes “differential diagnosis” (looking for support of 1 diagnostic category over others) difficult