Medicine:Cluster B personality disorders

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Short description: Categorization of personality disorders
Personality disorders
Cluster A (odd)
Cluster B (dramatic)
Cluster C (anxious)
Not specified

Cluster B personality disorders are a categorization of personality disorders as defined in the DSM-IV and DSM-5.[1] They are characterized by impulsive, self-destructive, emotional behavior and sometimes incomprehensible interactions with others. They include antisocial personality disorder, borderline personality disorder, histrionic personality disorder and narcissistic personality disorder.[2]

Recognized Cluster B personality disorders

Each of these disorders, while similar, have a variety of symptoms, diagnoses, and causes.

  • Antisocial personality disorder[3] (DSM-IV code 301.7):
    • Symptoms: Indifferent and routine manipulation, exploitation, and violation of the rights of others. It can also be characterized by routine law breaking.[3]
    • Cause: Signs of Antisocial Personality Disorder often first become evident in childhood. Consequently, although the cause is unknown, it is believed that a more difficult childhood can lead to APD.[4]
    • Diagnosis: While symptoms can start to show themselves in the early teen years, a diagnosis cannot be made until adulthood. To be diagnosed, the patient must fit at least seven of the most common indicators such as lack of empathy, manipulation, impulsivity, recklessness, irresponsibility, apathy, and irritability.[4]
  • Borderline personality disorder (DSM-IV code 301.83):
    • Symptoms: Difficulty regulating emotions, impulsivity, self-harm, dissociative feelings, and even psychotic episodes.
    • Cause: 1. Genetics – those with a family member who has BPD are considered more likely to develop the disorder. 2. Trauma – trauma such as assault or neglect early in life may lead to BPD.
    • Diagnosis: Unlike many psychological disorders, there is no strict guideline for the diagnosis of Borderline Personality Disorder.[5]
  • Histrionic personality disorder (DSM-IV code 301.50):
    • Symptoms: An overwhelming desire for attention, chronically unstable emotions, sensitivity, gullibility, and reckless behavior.
    • Cause: It is believed that Histrionic Personality Disorder can either be inherited genetically or learned behavior in early childhood.
    • Diagnosis: To diagnose the disorder, there is no strict guideline; however, a doctor may begin by evaluating the patient's medical history and physical well-being to ensure that the causes of the symptoms are mental rather than physical.[6]
  • Narcissistic personality disorder (DSM-IV code 301.81):
    • Symptoms: A magnified sense of self importance, underlying deep self esteem issues, exaggeration, manipulation, envy, arrogance, impatience, depression. Like HPD, it can cause an excessive need for attention and approval.
    • Causes: It can be caused by genetics, environment, or neurobiology.
    • Diagnosis: NPD may often go misdiagnosed or undiagnosed, as patients often display symptoms similar to other disorders, or may not be willing to admit there is anything wrong. It may be treated with talk therapy (psychotherapy).[7]

Cluster B traits and common symptoms

Cluster B personality disorders are all characterized by emotional dysregulation, impulsivity, and frequent interpersonal conflicts.[8][9] These individuals present as "dramatic", "emotional", and "erratic".[10] [11]

References

  1. ↑ Kristalyn Salters-Pedneault (May 6, 2016). "Understanding the Cluster B Personality Disorders/The Cluster B Personality Disorders: What Are the Cluster B Personality Disorders?". Verywell. Archived from the original on September 6, 2010. https://web.archive.org/web/20100906103716/http://bpd.about.com/od/relatedconditions/a/clusterB.htm. 
  2. ↑ "Personality disorders - Symptoms and causes". https://www.mayoclinic.org/diseases-conditions/personality-disorders/symptoms-causes/syc-20354463. Retrieved 26 January 2019. 
  3. ↑ 3.0 3.1 "Antisocial personality disorder: MedlinePlus Medical Encyclopedia" (in en). https://medlineplus.gov/ency/article/000921.htm. 
  4. ↑ 4.0 4.1 "Antisocial personality disorder" (in en). 2018-03-21. https://www.nhs.uk/conditions/antisocial-personality-disorder/. 
  5. ↑ "Borderline Personality Disorder". December 2017. https://www.nami.org/learn-more/mental-health-conditions/borderline-personality-disorder. 
  6. ↑ "Histrionic Personality Disorder" (in en). https://my.clevelandclinic.org/health/diseases/9743-histrionic-personality-disorder. 
  7. ↑ "Narcissistic personality disorder - Diagnosis and treatment - Mayo Clinic". https://www.mayoclinic.org/diseases-conditions/narcissistic-personality-disorder/diagnosis-treatment/drc-20366690. 
  8. ↑ Nioche, A; Pham, TH; Ducro, C; de Beaurepaire, C; Chudzik, L; Courtois, R; Réveillère, C (June 2010). "Psychopathy and Associated Personality Disorders: Searching for a Particular Effect of the Borderline Personality Disorder?". Encephale 36 (3): 253–9. doi:10.1016/j.encep.2009.07.004. PMID 20620268. 
  9. ↑ Borges, LM; Naugke, AE (8 November 2017). "The role of emotion regulation in predicting personality dimensions". Personality and Mental Health 11 (4): 314–334. doi:10.1002/pmh.1390. PMID 28856850. 
  10. ↑ Young, C.; Habarth, J.; Bongar, B.; Packman, W. (2013). "Diagnostic and statistical manual of mental disorders". Psychiatry, Psychology, and Law (American Psychiatric Association) 25 (5): 706–723. doi:10.1080/13218719.2018.1474816. PMID 31984047. 
  11. ↑ Kraus, G; Reynolds, DJ (April 2001). "The "A-B-C's" of the cluster B's: identifying, understanding, and treating cluster B personality disorders". Clinical Psychology Review 21 (3): 345–373. doi:10.1016/s0272-7358(99)00052-5. PMID 11288605. 




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