According to the American Psychology Association, personality refers to the unique thinking, feeling, and behaving patterns that are unique to each one of us. It is developed during our childhood and influenced by a wide range of experiences, environments, and genes.
Personality disorders are considered as a group of mental disorder; therefore, they consist of unhealthy and inflexible patterns that apply to ones thinking, functioning and behaving, making it very different for the average person. The unhealthy patterns are long-lasting, causing distress and impact the individuals functioning. These disorders tend to start during teenage years or early adulthood, although the causes are unknown, it is believed that one’s genes and childhood experiences play a significant role. Symptoms can be mild or severe and may vary according to the type of personality disorder that is presented, since each have their own diagnostics criteria. However, in order to be diagnosed with any of them, it has to affect at least two of the following areas:
Personality disorders are divided into groups according to characteristics they share between them, and these are called clusters. There are three main clusters:
The treatment required depends on the particular personality disorder which is present and the severity of the case. Since the patterns associated with each personality disorder are persistent and established, treatment may last months or years. Most of the time, a team approach is required in order to meet the person´s psychological, medical and social needs; such team can include: a care provider such as a primary doctor, a psychiatrist and a psychologist/psychotherapist (in other cases it can involve a psychiatric nurse, a pharmacist and/or a social worker). Regarding the psychologist and psychotherapy, the most common approaches that have demonstrated to be efficient with personality disorders are: psychoanalytic/psychodynamic, dialectic behavior, cognitive behavioral and group therapy – sometimes psychoeducation is used to involve the family and the individual in order to teach them about the disorder, coping mechanisms and possible treatments.
This cluster contains personality disorders characterized by an odd and eccentric type of thinking and behavior, therefore, here we can find the paranoid, schizoid and schizotypal personality disorders.
Paranoid personality disorder. They seem distrustful and suspicious of others and their motives. According to the DSM 5 (American Psychiatric Association, 2013, p.649), 4 or more of the following criteria must be met in order to be diagnosed with this personality disorder:
Schizoid personality disorder. Can show little interest on establishing personal relationships or being involved in social interactions. Being detached from social relationships and showing only a restricted range of emotional expressions can generate trouble interpreting social cues. According to the DSM 5 (American Psychiatric Association, 2013, p.652-653), 4 or more of the following criteria must be met in order to be diagnosed with this personality disorder:
Schizotypal personality disorder. They can believe that they are able to influence other people or external events through their thoughts. These type of cognitive and perceptual distortions and eccentricities of behavior can lead to social and interpersonal deficits, which include a distinct acute discomfort or inappropriate emotional responses and lead to an avoidance if intimate relationships. According to the DSM 5 (American Psychiatric Association, 2013, p.655-656), 4 or more of the following criteria must be met in order to be diagnosed with this personality disorder:
This cluster contains personality disorders characterized by a theatrical, exceedingly emotional or unpredictable thinking or behavior; here, we find the antisocial, borderline, histrionic and narcissistic personality disorders.
Antisocial personality disorder. They tend to show a pattern of disregarding or violating the rights of others, through manipulation or threats, without showing remorse for their actions. Moreover, they can engage in dishonest behavior such as lying and stealing, and may not conform to social norms by acting impulsively. According to the DSM 5 (American Psychiatric Association, 2013, p.659), the person must be at least 18 years old, show evidence if conduct disorder before the age of 15 and meet 3 or more of the following criteria in order to be diagnosed with this personality disorder:
Borderline personality disorder. They show an unstable pattern in personal relationships, intense emotions, poor self-image and impulsivity. They often have an ongoing feeling of emptiness and abandonment regardless of the actual support they have, therefore, they may go to great lengths to avoid being abandoned (including repeated suicide threats or attempts). According to the DSM 5 (American Psychiatric Association, 2013, p.663), 5 or more of the following criteria must be met in order to be diagnosed with this personality disorder:
Histrionic personality disorder. They tend to show a pattern of excessive emotion and attention seeking, they are usually uncomfortable when they are not the center of attention and frequently try to gain more attention by being dramatic or provocative. Also, they are sensitive to and easily influenced by criticism and disapproval. According to the DSM 5 (American Psychiatric Association, 2013, p.667), 5 or more of the following criteria must be met in order to be diagnosed with this personality disorder:
Narcissistic personality disorder. They have a pattern characterized by the need for admiration and lack of empathy for others. They often believe they are more important than others, showing a grandiose sense of self-importance and entitlement by exaggerating their achievements and bragging. According to the DSM 5 (American Psychiatric Association, 2013, p.669-670), 5 or more of the following criteria must be met in order to be diagnosed with this personality disorder:
This cluster contains personality disorders characterized by anxious and fearful thinking or behavior; therefore, here we can find the avoidant, dependent and obsessive-compulsive personality disorders.
Avoidant personality disorder. They show extreme shyness, feeling of inadequacy and sensitivity towards criticism. They are unwilling to get involved with people due to feelings of inferiority or unattractiveness, unless they are sure they will be liked; therefore, being criticized or rejected is a source of preoccupation. According to the DSM 5 (American Psychiatric Association, 2013, p.672-673), 4 or more of the following criteria must be met in order to be diagnosed with this personality disorder:
Dependent personality disorder. They exclusively depend on other people to satisfy their needs, such as the emotional and physical, and they want to be taken care of and exhibit a submissive and clingy behavior. These attitudes makes it difficult for them to be alone or to take decisions without reassurance from others. According to the DSM 5 (American Psychiatric Association, 2013, p.675), 5 or more of the following criteria must be met in order to be diagnosed with this personality disorder:
Obsessive-compulsive personality disorder. They express a preoccupation and overwhelming need for order, perfection and control, adhering themselves strictly to rules and regulations. It must be pointed out that this personality disorder is not the same as the obsessive-compulsive disorder. According to the DSM 5 (American Psychiatric Association, 2013, p.678-679), 4 or more of the following criteria must be met in order to be diagnosed with this personality disorder:
American Psychiatric Association. (2013). Diagnostic and Statistical Manual of mental Disorders (5th ed.). Arlington, VA: American Psychiatric Association Publishing.
American Psychological Association. (n.d.). Personality. American Psychological Association. Recovered from: https://www.apa.org/topics/personality
Carey, E. (2021). Personality Disorder. Healthline. Recovered from: https://www.healthline.com/health/personality-disorders
Mayo Clinic Staff. (2016). Personality disorders. Mayo Clinic. Recovered from: https://www.mayoclinic.org/diseases-conditions/personality-disorders/symptoms-causes/syc-20354463
MedlinePlus (2016). Personality disorders. Healthline. Recovered from: https://medlineplus.gov/personalitydisorders.html
Mental Health America (n.d.). Personality Disorders. Mental Health America. Recovered from: https://mhanational.org/conditions/personality-disorder
Mind. (n.d.). Personality disorders. Mind. Recovered from: https://www.mind.org.uk/information-support/types-of-mental-health-problems/personality-disorders/types-of-personality-disorder/
National Health Service. (2020). Personality disorders. National Health Service. Recovered from: https://www.nhs.uk/mental-health/conditions/personality-disorder/
Robitz, R. (2018). What are personality disorders?. American Psychiatric Association. Recovered from: https://www.psychiatry.org/patients-families/personality-disorders/what-are-personality-disorders