pt 3 Borderline Personality Disorder: Clinical Characteristics, Diagnostic Differentiation, and Dialectical Behavior Therapy (DBT) Framework

Overview of Cluster B Personality Disorders

• Cluster B is categorized as the "dramatic, emotional, and erratic" group of personality disorders.
• This cluster includes the following specific disorders:     - Borderline Personality Disorder (BPD).     - Histrionic Personality Disorder.     - Narcissistic Personality Disorder.     - Antisocial Personality Disorder.

Borderline Personality Disorder (BPD): Definition and Demographics

• Prevalence and Gender:     - BPD has a relatively low prevalence rate in the general population.     - Women are diagnosed with BPD significantly more often than men.     - This disparity in diagnosis is attributed in part to how different sexes are gendered and the specific behaviors clinicians look for in men versus women.
• General Diagnostic Characterization:     - BPD is defined by a pervasive pattern of instability affecting interpersonal relationships, self-image, and affect.     - It is marked by significant impulsivity.     - The disorder typically begins by early adulthood and is present across a wide variety of contexts.

The Trifecta of Instability and Impulsivity

• The core of BPD is described as a "trifecta of instability" combined with impulsivity.
• The Trifecta of Instability:     1. Relationships: Pervasive instability in how the individual interacts with and perceives others.     2. Self: A lack of a consistent, stable identity or sense of self.     3. Affect: Significant emotional lability and rapid mood changes.
• Impulsivity: This serves as the fourth major hallmark, manifesting in various high-risk and self-damaging behaviors.

Interpersonal Instability and Abandonment Fears

• Avoidance of Abandonment:     - Individuals engage in frantic efforts to avoid real or imagined abandonment.     - This may manifest during the breakdown of a relationship or even within an intact relationship where the fear of being left is constant.     - This fear is particularly terrifying due to the individual's lack of a solid sense of self; they may feel they cannot exist without the other person.
• Patterns of Relationships:     - Relationships are characterized by being both unstable and intense.     - Splitting: A hallmark behavior where the individual alternates between extremes of idealization and devaluation.     - A person may be viewed as "amazing" one moment and "terrible" the next.

Instability of Self-Image and Affect

• Disturbance of Self-Image:     - There is a lack of a consistent, stable sense of who the person is at their core.     - The individual may not know what they like or what they value.     - This results in a "fluid self" that feels as though it could be anything or anyone at any time, leading to significant anxiety and chaos.
• Affective Instability (Lability):     - Affect is highly variable, swinging rapidly between different emotional states.     - These swings include episodic dysphoria, irritability, or anxiety.     - These episodes can last for hours at a time.     - The person often feels they have no control or agency over these rapid changes from negative to positive moods.     - Individuals often describe chronic feelings of emptiness.

Impulsivity and Self-Damaging Behaviors

• BPD is marked by several impulsive, self-damaging behaviors, including:     - Spending sprees.     - High-risk sexual activities.     - Substance abuse.     - Reckless driving.     - Binge eating.
• Anger and Distress:     - Inappropriate, intense anger or difficulty controlling anger is common.     - The speaker notes that many individuals with BPD have "very rich, painful childhoods," which may explain the origins of such intense anger.
• Self-Harm and Suicidality:     - Recurrent suicidal behavior, gestures, or threats.     - Self-mutilation (e.g., cutting or burning).     - These behaviors often occur impulsively, without much cognitive control, in response to immediate emotional needs.

Cognitive Symptoms and Stress-Related Psychosis

• During periods of intense distress, individuals with BPD may experience:     - Transient, stress-related paranoid ideation.     - Dissociative symptoms (feeling disconnected from reality or themselves).
• While these symptoms can appear psychotic, BPD is not a psychotic disorder.
• Patients with BPD do not typically transition into a diagnosis of schizophrenia, but they tend to "fall apart" or "break down" under high levels of stress.

Differential Diagnosis and Rule-Outs

• Bipolar Disorder and Cyclothymic Disorder:     - These must be ruled out due to the episodic intensity of mood changes.     - Distinguishing factor: BPD does not involve periods of hypomania or mania (the latter defines Bipolar I).
• Major Depressive Disorder (MDD):     - Individuals with BPD are often sad about their lives and their lack of emotional control.     - However, their sadness is usually secondary to the instability of relationships, self, and affect, rather than a primary MDD diagnosis.
• Generalized Anxiety Disorder (GAD):     - The constant anxiety resulting from instability can make a person look like they have GAD.
• Substance Abuse/Dependence:     - Often occurs as a form of self-medication to cope with emotional pain and instability.

Suicidality vs. Parasuicidality

• It is a misconception that all individuals with BPD are suicidal or self-mutilating, though there is a strong association.
• Suicidality in BPD:     - Rates of completed suicide are very high, with literature citing rates between $8\%$ and $10\%$.     - These individuals are often in a great deal of pain and dealing with overwhelming personal histories.
• The "Manipulative Suicidality" Label:     - Some engage in suicidal threats or gestures to get needs met (e.g., to prevent abandonment).     - Clinicians sometimes use the label "manipulatively suicidal," which the speaker identifies as a risky and potentially frustrating label.     - Example: A client might say, "If you leave, I'll kill myself," when a therapist goes on vacation.     - This should be viewed not as simple manipulation, but as a "real skill deficit" regarding how to communicate fear and need for support.
• Parasuicidality (Self-Mutilation):     - Includes surface cutting or burning not designed to result in death.     - Function as Grounding: It serves as a distractor from emotional pain or a way to ground a person who feels lost or dissociative.     - The Evolutionary Metaphor of Pain: Pain brings a person back to the present. Similar to how clipping a shoulder on a doorway or catching a foot in a car door immediately focuses one's attention, self-inflicted pain grounds the individual in the "now" when they are overwhelmed by their history or dissociation.

Dialectical Behavior Therapy (DBT)

• Origin: Developed by Marsha Linehan in the early $1990s$.
• Definition: A psychotherapy within the Cognitive Behavioral Therapy (CBT) camp.
• Primary Focus: Skills building, specifically for affect regulation and appropriate help-seeking behaviors.
• Concept of Affect Dysregulation:     - Describes moving from a $0$ to a $10$ on an emotional scale instantly.     - Linehan's theory is that individuals with BPD did not learn to identify, experience, and express emotions effectively.     - Example of Invalidating Environment: A child is upset, and a parent hits them and says, "You're not sad, you're hungry." This creates confusion and an inability to express feelings directly.
• Components of DBT:     - Basic coping skills.     - Emotion regulation.     - CBT skills (behavioral activation and cognitive processing).     - Eastern Tradition/Zen: Rooted in mindfulness and the use of "wise mind."     - Social skills and social effectiveness.

Effectiveness and Practical Implications of DBT

• Clinical Efficacy:     - DBT has been proven effective for decades compared to no treatment.     - It reduces hospitalization rates and decreases self-injury and suicidal behaviors.
• Economic Impact:     - It creates significant cost savings by keeping patients out of the hospital.     - Because of this, it is standard in major healthcare organizations like Kaiser.
• Limitation:     - Interestingly, research shows that while DBT decreases self-injury and hospitalization, there is little evidence that it significantly improves overall "well-being" or makes individuals feel "happier" all the time.