The Effectiveness of 6 versus 12 Months of Dialectical Behavior Therapy for Borderline Personality Disorder: A Noninferiority Randomized Clinical Trial.

INTRODUCTION: Evidence-based psychotherapies for borderline personality disorder (BPD) are lengthy, posing a barrier to their access. Brief psychotherapy may achieve comparable outcomes to long-term psychotherapy for BPD. Evidence is needed regarding the comparative effectiveness of short- versus long-term psychotherapy for BPD. OBJECTIVE: The aim was to determine if 6 months of Dialectical Behavior Therapy (DBT) is noninferior to 12 months of DBT in terms of clinical effectiveness. METHODS: This two-arm, single-blinded, randomized controlled noninferiority trial with suicidal or self-harming patients with BPD was conducted at two sites in Canada. Participants (N = 240, M (SD)age = 28.27 (8.62), 79% females) were randomized to receive either 6 (DBT-6) or 12 months (DBT-12) of comprehensive DBT. Masked assessors obtained measures of clinical effectiveness at baseline and every 3 months, ending at month 24. DBT-6 and DBT-12 were outpatient treatments consisting of weekly individual therapy sessions, weekly DBT skills training group sessions, telephone consultation as needed, and weekly therapist consultation team meetings. RESULTS: The noninferiority hypothesis was supported for the primary outcome, total self-harm (6 months: margin = -1.94, Mdiff [95% CI] = 0.16 [-0.14, 0.46]; 12 months: margin = -1.47, Mdiff [95% CI] = 0.04 [-0.17, 0.23]; 24 months: margin = -1.25, Mdiff [95% CI] = 0.12 [-0.02, 0.36]). Results also supported noninferiority of DBT-6 for general psychopathology and coping skills at 24 months. Furthermore, DBT-6 participants showed more rapid reductions in BPD symptoms and general psychopathology. There were no between-group differences in dropout rates. CONCLUSIONS: The noninferiority of a briefer yet comprehensive treatment for BPD has potential to reduce barriers to treatment access.

Treatment selection in borderline personality disorder between dialectical behavior therapy and psychodynamic psychiatric management.

BACKGROUND: No evidence-based therapy for borderline personality disorder (BPD) exhibits a clear superiority. However, BPD is highly heterogeneous, and different patients may specifically benefit from the interventions of a particular treatment. METHODS: From a randomized trial comparing a year of dialectical behavior therapy (DBT) to general psychiatric management (GPM) for BPD, long-term (2-year-post) outcome data and patient baseline variables (n = 156) were used to examine individual and combined patient-level moderators of differential treatment response. A two-step bootstrapped and partially cross-validated moderator identification process was employed for 20 baseline variables. For identified moderators, 10-fold bootstrapped cross-validated models estimated response to each therapy, and long-term outcomes were compared for patients randomized to their model-predicted optimal v. non-optimal treatment. RESULTS: Significant moderators surviving the two-step process included psychiatric symptom severity, BPD impulsivity symptoms (both GPM > DBT), dependent personality traits, childhood emotional abuse, and social adjustment (all DBT > GPM). Patients randomized to their model-predicted optimal treatment had significantly better long-term outcomes (d = 0.36, p = 0.028), especially if the model had a relatively stronger (top 60%) prediction for that patient (d = 0.61, p = 0.004). Among patients with a stronger prediction, this advantage held even when applying a conservative statistical check (d = 0.46, p = 0.043). CONCLUSIONS: Patient characteristics influence the degree to which they respond to two treatments for BPD. Combining information from multiple moderators may help inform providers and patients as to which treatment is the most likely to lead to long-term symptom relief. Further research on personalized medicine in BPD is needed.

Evaluating the effectiveness of the Family Connections program for caregivers of youth with mental health challenges, part I: A quantitative analysis.

INTRODUCTION: Caregivers of youth with mental health (MH) challenges are often faced with complex problems in relation to caring for their youth. Family Connections™ (FC) is a 12-week skills training program for families of individuals with MH challenges, developed originally for Borderline Personality Disorder. Research is needed to examine the effectiveness of FC for caregivers of youth with diverse MH challenges. OBJECTIVE: To examine the effectiveness of FC for caregivers of youth with MH challenges. METHODS: A total of 94 caregivers of youth with MH challenges participated in FC, across three sites in Ontario, Canada. Assessments occurred at baseline, 6 weeks, 12 weeks and follow-up. Primary outcomes include the Burden Assessment Scale and The Stress Index for Parents of Adolescents. Secondary outcomes included the caregiver's report of child behaviour, affect, mastery, coping and grief. Linear mixed model analyses were conducted, where time and the time × site interaction were defined as the fixed effects. RESULTS: Statistically significant improvements over time were observed across outcome measures, including caregiver burden, grief, coping, and other measures. The time × site interaction was only significant for burden (P = .005). CONCLUSION: This study demonstrates the effectiveness of FC for caregivers of youth with MH challenges. Future research should focus on differences across geographical sites and facilitation models. PATIENT OR PUBLIC CONTRIBUTION: Caregivers were involved in the facilitation of FC. A person with lived experience was involved in analysing the data, reporting the results, and drafting the manuscript.

Alliance rupture and repair in early sessions of dialectical behavior therapy: The case of Rachel.

Emotional and interpersonal instability are core features of borderline personality disorder (BPD) and can pose a challenge for the therapeutic relationship. In dialectical behavior therapy (DBT) for BPD, ruptures in the therapeutic alliance are considered through a behavioral lens that examines the client's relational learning history, the function and context of the rupture, as well as the patterns of emotional processing difficulties that underlie interpersonal conflict. In this article, we use the case of Rachel to illustrate how alliance-focused approach can be integrated with DBT case formulation to enhance treatment planning and the successful negotiation of alliance ruptures.

Clinical, personality, and neurodevelopmental phenotypes in borderline personality disorder: a family study.

BACKGROUND: Borderline personality disorder (BPD) is characterized by a heterogeneous clinical phenotype that emerges from interactions among genetic, biological, neurodevelopmental, and psychosocial factors. In the present family study, we evaluated the familial aggregation of key clinical, personality, and neurodevelopmental phenotypes in probands with BPD (n = 103), first-degree biological relatives (n = 74; 43% without a history of psychiatric disorder), and non-psychiatric controls (n = 99). METHODS: Participants were assessed on DSM-IV psychiatric diagnoses, symptom dimensions of emotion dysregulation and impulsivity, 'big five' personality traits, and neurodevelopmental characteristics, as part of a larger family study on neurocognitive, biological, and genetic markers in BPD. RESULTS: The most common psychiatric diagnoses in probands and relatives were major depression, substance use disorders, post-traumatic stress disorder, anxiety disorders, and avoidant personality disorder. There was evidence of familial aggregation for specific dimensions of impulsivity and emotion dysregulation, and the big five traits neuroticism and conscientiousness. Both probands and relatives reported an elevated neurodevelopmental history of attentional and behavioral difficulties. CONCLUSIONS: These results support the validity of negative affectivity- and impulse-spectrum phenotypes associated with BPD and its familial risk. Further research is needed to investigate the aggregation of neurocognitive, neural and genetic factors in families with BPD and their associations with core phenotypes underlying the disorder.

The effectiveness of 6 versus 12-months of dialectical behaviour therapy for borderline personality disorder: the feasibility of a shorter treatment and evaluating responses (FASTER) trial protocol.

BACKGROUND: Although Dialectical Behaviour Therapy (DBT) is an evidence-based psychosocial treatment for borderline personality disorder (BPD), the demand for it exceeds available resources. The commonly researched 12-month version of DBT is lengthy; this can pose a barrier to its adoption in many health care settings. Further, there are no data on the optimal length of psychotherapy for BPD. The aim of this study is to examine the clinical and cost-effectiveness of 6 versus 12 months of DBT for chronically suicidal individuals with BPD. A second aim of this study is to determine which patients are as likely to benefit from shorter treatment as from longer treatment. METHODS/DESIGN: Powered for non-inferiority testing, this two-site single-blind trial involves the random assignment of 240 patients diagnosed with BPD to 6 or 12 months of standard DBT. The primary outcome is the frequency of suicidal or non-suicidal self-injurious episodes. Secondary outcomes include healthcare utilization, psychiatric and emotional symptoms, general and social functioning, and health status. Cost-effectiveness outcomes will include the cost of providing each treatment as well as health care and societal costs (e.g., missed work days and lost productivity). Assessments are scheduled at pretreatment and at 3-month intervals until 24 months. DISCUSSION: This is the first study to directly examine the dose-effect of psychotherapy for chronically suicidal individuals diagnosed with BPD. Examining both clinical and cost effectiveness in 6 versus 12 months of DBT will produce answers to the question of how much treatment is good enough. Information from this study will help to guide decisions about the allocation of scarce treatment resources and recommendations about the benefits of briefer treatment. TRIAL REGISTRATION: NCT02387736 . Registered February 20, 2015.

Cognitive Emotion Regulation Strategies in Borderline Personality Disorder: Diagnostic Comparisons and Associations with Potentially Harmful Behaviors.

BACKGROUND: Although difficulties in emotion regulation (ER) are considered a core feature of borderline personality disorder (BPD), the specific strategies that individuals with BPD most commonly use, their diagnostic specificity, and their associations with harmful behaviors have not been firmly established. SAMPLING AND METHODS: Individuals with BPD (n = 30), mixed anxiety and/or depressive disorders (MAD; n = 30), and healthy controls (HC; n = 32) completed questionnaires assessing both cognitive ER strategies (e.g., cognitive reappraisal) and potentially harmful behaviors that individuals might use to regulate their emotions (e.g., self-injury). RESULTS: BPD subjects endorsed more maladaptive cognitive ER strategies and fewer adaptive strategies compared to HC. Compared to MAD subjects, BPD individuals endorsed more maladaptive cognitive ER strategies, but only when those with subthreshold symptoms in the MAD group were excluded. BPD also endorsed engaging in potentially harmful behaviors more often than both HC and MAD. Discriminant analysis revealed that MAD endorsed lower rates of problem-solving and cognitive reappraisal compared to both HC and BPD. Higher maladaptive and lower adaptive ER strategies were associated with higher rates of potentially harmful behaviors, although the specific strategies differed for MAD versus BPD. CONCLUSIONS: BPD and MAD endorse cognitive ER strategies with a comparable frequency, although BPD subjects engage in potentially harmful behaviors more often. Subthreshold BPD symptoms may also affect rates of ER strategy use in individuals with other mental disorders.

A randomized trial of brief dialectical behaviour therapy skills training in suicidal patients suffering from borderline disorder.

OBJECTIVE: Evidence-based therapies for borderline personality disorder (BPD) are lengthy and scarce. Data on brief interventions are limited, and their role in the treatment of BPD is unclear. Our aim was therefore to evaluate the clinical effectiveness of brief dialectical behaviour therapy (DBT) skills training as an adjunctive intervention for high suicide risk in patients with BPD. METHOD: Eighty-four out-patients were randomized to 20 weeks of DBT skills (n = 42) or a waitlist (WL; n = 42). The primary outcome was frequency of suicidal or non-suicidal self-injurious (NSSI) episodes. Assessments were conducted at baseline 10, 20 and 32 weeks. RESULTS: DBT participants showed greater reductions than the WL participants on suicidal and NSSI behaviours between baseline and 32 weeks (P < 0.0001). DBT participants showed greater improvements than controls on measures of anger, distress tolerance and emotion regulation at 32 weeks. CONCLUSIONS: This abbreviated intervention is a viable option that may be a useful adjunctive intervention for the treatment of high-risk behaviour associated with the acute phase of BPD.

Advances in the Treatment of Borderline Personality Disorder: An Introduction to the Special Issue.

The past few decades have seen major progress in the treatment of borderline personality disorder (BPD), a condition that historically has been viewed as difficult to treat. Currently, several evidence-based psychotherapies are available that have generated excitement and hope, yet these developments have also raised new problems that must be addressed. In this special issue, experts in the field of BPD have been invited to share their ideas on some viable directions in the treatment field. This commentary reviews the challenges we currently face and describes the treatment directions presented by the contributors.

The role of mindfulness and emotion regulation in dialectical behavioral therapy for borderline personality disorder.

Despite nearly 30 years of research demonstrating its effectiveness in the treatment of borderline personality disorder (BPD) and related problems, few studies have investigated mechanisms of change for dialectical behavior therapy (DBT; Linehan, 1993a). Improvements in mindfulness and emotion regulation have been highlighted as key potential mechanisms of change in DBT (Lynch et al., 2006). The present study examined the time course of and associations between mindfulness, emotion regulation, and BPD symptoms during DBT. Participants were 240 repeatedly and recently self-harming adults (Mage = 27.75) with BPD who were randomly assigned to receive either 6 or 12 months of standard DBT. Primary hypotheses were that: (a) changes in mindfulness would occur before changes in emotion regulation, and (b) changes in emotion regulation would mediate the association of changes in mindfulness with changes in BPD symptoms. Results from changepoint analysis illuminated the proportion of participants for whom first changes occurred in emotion regulation (40.7%), mindfulness (32.4%), or both (26.9%). Contrary to hypotheses, five-wave, cross-lagged analyses did not indicate mediational effects of either mindfulness or emotion regulation on the association of either variable with change in BPD symptoms. Supplemental analyses, however, suggested that changes in emotion regulation mediated the inverse association of changes in mindfulness with changes in BPD symptoms. Findings highlight patterns of change in key, proposed mechanisms of change in DBT and suggest important future research directions. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

The role of emotion dysregulation and interpersonal dysfunction in nonsuicidal self-injury during dialectical behavior therapy for borderline personality disorder.

Dialectical Behaviour Therapy (DBT) is an evidence-based treatment for borderline personality disorder (BPD), with findings demonstrating improvements in various BPD features and related behaviours, such as nonsuicidal self-injury (NSSI). Theory and research suggest that reductions in emotion dysregulation and interpersonal dysfunction could account for at least some of the reduction in NSSI observed during the course of DBT. The current research investigated: 1) the trajectory of changes in emotion dysregulation, interpersonal dysfunction, and NSSI over the course of DBT, and 2) whether changes in emotion dysregulation mediate the relationship between changes in interpersonal dysfunction and changes in NSSI over treatment. One hundred and twenty individuals with BPD enrolled in a multi-site randomized-clinical trial were assessed at five timepoints over 12 months of standard DBT. Results indicated that interpersonal dysfunction and NSSI decreased over the course of DBT. Emotion dysregulation decreased in a quadratic manner such that most of the gains in emotion dysregulation occurred in earlier phases of DBT. Although changes in interpersonal dysfunction predicted changes in emotion dysregulation, changes in emotion dysregulation did not mediate the relationship between changes in interpersonal dysfunction and changes in NSSI.

A longitudinal approach to evaluating therapist and client contributions to alliance on outcomes in borderline personality disorder.

Methods for studying therapeutic alliance have primarily examined the impact of the early alliance on outcomes. This does not allow for an understanding of the contributions of client, therapist, and dyadic factors to the alliance. Also, the alliance may change over time, highlighting the need for longitudinal methods. Efforts have been made to develop approaches that decompose the contributing factors and their impact on outcomes, but these findings may not apply to clients with borderline personality disorder (BPD). Our study extends previous research by replicating Baldwin et al.'s (2007) approach to disentangling therapist versus client-therapist dyad effects while using a time-varying framework. Participants (n = 156) were individuals diagnosed with BPD randomized to 1 year of dialectical behavior therapy or general psychiatric management. Outcomes were general psychiatric severity and interpersonal functioning measured at baseline and every 4 months. Client-rated alliance was measured at these time points. Early alliance predicted interpersonal functioning (p = .0132) with a significant contribution from clients (p = .0248) but not therapists (p = .2854). In the time-varying analysis, client contribution to the alliance was significant (p = .0022). For general psychiatric severity, client contributions to the alliance were significant (p < .0001) but not therapist contributions (p = .6779). Client contribution to the alliance was significant (p = .0168) in the time-varying model. Results suggest that in a BPD sample, time-varying alliance is a better predictor of rate of change in outcomes compared with the alliance measured at a single time point. In contrast to other studies, client, not therapist, contributions to alliance were significant in predicting outcomes. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

Repetitive transcranial magnetic stimulation in patients with borderline personality disorder: A systematic review.

The literature on the application of repetitive transcranial magnetic stimulation (rTMS) in Borderline Personality Disorder (BPD) is unclear, even though its neuromodulatory effects on underlying neural circuitry involved in BPD symptoms suggest that it could be a potential treatment option. We sought to review the evidence on rTMS as a treatment option in BPD. PubMed (for Medline database), Google Scholar, and Scopus were systematically searched following the PRISMA guidelines for studies of any design examining the application of the rTMS treatment in adult patients with precise and primary diagnosis of BPD written in the English language. The systematic review has been registered on PROSPERO (CRD42020215927). Forty one records were screened, and eight fulfilled inclusion criteria (total of 63 patients). The existing studies suggest that rTMS is a well-tolerated treatment in patients with BPD. Double-blind randomized controlled studies are necessary to help elucidate the effects of rTMS in the different symptoms in BPD and establish efficacy and the best cortical targets and stimulation protocols. Longitudinal studies that combine evidenced based psychotherapy with rTMS may be a future line of investigation that could potentially improve outcomes for this population.

Neurophysiological biomarkers of response inhibition and the familial risk for borderline personality disorder.

Understanding of the biological factors that run in families affected with borderline personality disorder (BPD) is limited. The authors investigated the familial aggregation of neurophysiological biomarkers of response inhibition in the first-degree biological relatives of probands with BPD and associations with psychiatric diagnosis and impulsive traits. In the present study, psychiatric diagnoses and impulsive traits were measured in BPD probands (n = 86), psychiatrically affected and non-affected relatives (n = 60) and controls (n = 83). While undergoing neuroimaging using functional near-infrared spectroscopy, prefrontal cortex (PFC) activation was measured during a go/no-go response inhibition task and compared between probands, relatives and controls. Additionally, non-psychiatrically affected relatives and controls were contrasted to examine the potential impact of familial risk for BPD on response inhibition-related PFC activation in the absence of confounding psychiatric morbidity. Probands showed bilateral decreases in PFC activation during response inhibition compared to relatives and controls. Conversely, both affected and non-affected relatives displayed higher activation than controls and probands in left lateral/medial and right medial PFC, although non-affected relatives showed a lesser extent of activation than affected relatives. Probands and controls reporting greater impulsive traits displayed deactivation across the PFC during response inhibition, whereas relatives showed increased activation. In this first family study of neuroimaging biomarkers in BPD, we show that the familial risk for BPD is reflected in activation of the PFC during response inhibition, with lifetime psychiatric diagnosis and higher impulsive traits in relatives associated with larger increases in PFC activity. Higher PFC activity during response inhibition including among non-affected relatives could reflect a neurophysiological compensatory mechanism.

The independent roles of mindfulness and distress tolerance in treatment outcomes in dialectical behavior therapy skills training.

Despite research supporting the effectiveness of dialectical behavior therapy (DBT) for borderline personality disorder (BPD), few studies have examined how DBT leads to clinical change. DBT is theorized to lead to improved clinical outcomes by enhancing the capacity for emotion regulation, including improvement in skills (e.g., mindfulness and distress tolerance) for managing emotional distress and impulsive behaviors. Therefore, the aim of this study was to test whether improvements in mindfulness and distress tolerance indirectly affect the relationship between DBT skills training and clinical outcomes. The sample consists of 84 patients diagnosed with BPD who were enrolled in a randomized controlled trial comparing 20 weeks of DBT-skills group (DBT-S) to an active waitlist control. Mindfulness and distress tolerance were assessed at baseline and at the end of the 20 weeks. BPD symptoms, general psychiatric symptoms, and social adjustment were assessed at the end of 20 weeks and combined into a latent variable representing a broad assessment of general psychopathology. Relative to the waitlist control group, improvements in mindfulness and distress tolerance each independently indirectly affected the relationship between DBT-S and posttreatment general psychopathology. Findings suggest that DBT-S exerts its effects on outcomes through improvements in mindfulness and distress tolerance. These findings support the significance of mindfulness and distress tolerance in DBT-S for BPD. Limitations, future directions, and clinical implications are discussed. (PsycInfo Database Record (c) 2020 APA, all rights reserved).

A meta-analysis of psychodynamic treatments for borderline and cluster C personality disorders.

Personality disorders (PD) carry high psychosocial dysfunction and are associated with treatment resistance in nonspecialized care. Psychodynamic therapies (PDT) are often used to treat PDs, but there has never been a systematic meta-analysis of PDT trials for PD. To evaluate the evidence base for PDTs for PDs across multiple outcome domain, a systematic search for PDT for PD trials was conducted through PubMed and PsycINFO. Sixteen trials were identified, comprising 19 dynamic, 8 active, and 9 control groups predominantly reflecting treatment of borderline and mixed Cluster C PDs, and a random effects meta-analysis was undertaken. PDTs were superior to controls in improving core PD symptoms (g = -0.63; 95% confidence interval [CI; -0.87, -0.41]), suicidality (g = -0.79, p = .02; 95% CI [-1.38, -0.20]), general psychiatric symptoms (g = -0.47; 95% CI [-0.69, -0.25]), and functioning (g = -0.66; 95% CI [-1.01, -0.32]), but not for interpersonal problems due to heterogeneity (g = -1.25; 95% CI [-3.22, 0.71]). Outcomes for PDTs were not different from other active treatments in core PD (g = 0.05; 95% CI [-0.25, 0.35]) or other symptoms. This pattern continued into posttreatment follow-up (average 14 months). Study quality was generally rated as adequate and was unrelated to outcomes. Compared with other treatments, PDTs do not have different acute effects and are superior to controls, although only trials treating BPD employed active controls and non-BPD trials were of lower quality. Underresearched areas include narcissistic PD, specific Cluster C disorders, and personality pathology as a continuous construct. (PsycInfo Database Record (c) 2020 APA, all rights reserved).

Outcome Trajectories and Prognostic Factors for Suicide and Self-Harm Behaviors in Patients With Borderline Personality Disorder Following One Year of Outpatient Psychotherapy.

This study examined suicide and self-harm trajectories in 180 individuals with BPD receiving dialectical behavior therapy or general psychiatric management in a randomized controlled trial. Suicide and self-harm behaviors were assessed at baseline, every four months throughout treatment, and every 6 months over 2 years of follow-up. Latent class growth mixture modeling identified suicide and self-harm trajectories. Multinomial logistic regression analyses examined baseline patient characteristics. Three latent subgroups were identified. The largest responded rapidly to treatment and sustained a favorable response post-discharge. The second progressed slowly during treatment but achieved and maintained a favorable response. A third subgroup showed a rapid favorable response during treatment, however symptoms returned to near baseline levels post-discharge. This third subgroup had higher baseline depression, emergency department visits, and unemployment. BPD patients with high baseline health care utilization, depression, and unemployment may benefit from modifications to treatment specifically targeting these issues.

The Influence of Posttraumatic Stress Disorder on Treatment Outcomes of Patients With Borderline Personality Disorder.

The aim of this study was to determine the influence of posttraumatic stress disorder (PTSD) on treatment outcomes in patients with borderline personality disorder (BPD). Participants were 180 individuals diagnosed with BPD enrolled in a randomized controlled trial that compared the clinical and cost effectiveness of dialectical behavior therapy (DBT) and general psychiatric management (GPM). Multilevel linear models and generalized linear models were used to compare clinical outcomes of BPD patients with and without PTSD. BPD patients with comorbid PTSD reported significantly higher levels of global psychological distress at baseline and end of treatment compared to their non-PTSD counterparts. Both groups evidenced comparable rates of change on suicide attempts and non-suicidal self-injury (NSSI), global psychological distress, and BPD symptoms over the course of treatment and post-treatment follow-up. DBT and GPM were effective for BPD patients with and without PTSD across a broad range of outcomes.

Predicting Treatment Outcomes from Prefrontal Cortex Activation for Self-Harming Patients with Borderline Personality Disorder: A Preliminary Study.

Self-harm is a potentially lethal symptom of borderline personality disorder (BPD) that often improves with dialectical behavior therapy (DBT). While DBT is effective for reducing self-harm in many patients with BPD, a small but significant number of patients either does not improve in treatment or ends treatment prematurely. Accordingly, it is crucial to identify factors that may prospectively predict which patients are most likely to benefit from and remain in treatment. In the present preliminary study, 29 actively self-harming patients with BPD completed brain-imaging procedures probing activation of the prefrontal cortex (PFC) during impulse control prior to beginning DBT and after 7 months of treatment. Patients that reduced their frequency of self-harm the most over treatment displayed lower levels of neural activation in the bilateral dorsolateral prefrontal cortex (DLPFC) prior to beginning treatment, and they showed the greatest increases in activity within this region after 7 months of treatment. Prior to starting DBT, treatment non-completers demonstrated greater activation than treatment-completers in the medial PFC and right inferior frontal gyrus. Reductions in self-harm over the treatment period were associated with increases in activity in right DLPFC even after accounting for improvements in depression, mania, and BPD symptom severity. These findings suggest that pre-treatment patterns of activation in the PFC underlying impulse control may be prospectively associated with improvements in self-harm and treatment attrition for patients with BPD treated with DBT.

Executive functions and social cognition in highly lethal self-injuring patients with borderline personality disorder.

Risk for potentially lethal self-injurious behavior in borderline personality disorder (BPD) may be associated with deficits in neuropsychological functions and social cognition. In particular, individuals with BPD engaging in more medically damaging self-injurious behaviors may have more severe executive function deficits and altered emotion perception as compared to patients engaging in less lethal acts. In the current study, 58 patients with BPD reporting a lifetime history of self-injurious behavior were administered neuropsychological measures of response inhibition, planning and problem-solving,and tests of facial emotion recognition and discrimination. Patients who engaged in more medically lethal self-injurious behaviors reported engaging in impulsive behaviors more frequently and displayed neuropsychological deficits in problem-solving and response inhibition. They were also less accurate in recognizing happy facial expressions and in discerning subtle differences in emotional intensity in sad facial expressions. These findings suggest that patients with BPD that engage in more physically damaging self-injurious behaviors may have greater difficulties with behavioral control and employ less efficient problem-solving strategies. Problems in facial emotion recognition and discrimination may contribute to interpersonal difficulties in patients with BPD who self-injure.