Borderline Personality Disorder Subjects Research Articles

Borderline personality disorder vs. schizophrenia spectrum disorders in young people recruited within an "Early Intervention in Psychosis" service: clinical and outcome comparisons.

Borderline Personality Disorder (BPD) is under-recognized in First-Episode Psychosis (FEP) and its psychotic manifestations are difficult to differentiate from Schizophrenia Spectrum Disorders (SSD). The aim of this investigation was to compare clinical, sociodemographic, and outcome characteristics between FEP patients with BPD vs. FEP subjects with SSD both at baseline and across a 2-year follow-up period. Participants completed the Health of the Nation Outcome Scale (HoNOS), the Positive And Negative Syndrome Scale (PANSS), and the Global Assessment of Functioning (GAF) scale both at entry and every 12months during the follow-up. A mixed-design ANOVA model was conducted to investigate the temporal stability of clinical scores within and between the two subgroups. Among 356 FEP participants, 49 had a BPD diagnosis. Compared to FEP/SSD (n = 307), FEP/BPD patients showed higher prevalence of employment, current substance use, and past attempted suicide. They had a lower equivalent dose of antipsychotic medication at entry and lower levels of negative symptoms. Finally, they had a higher 2-year drop-out rate and a significant improvement in psychopathological scores limited to the first year of treatment. BPD as categorical entity represents a FEP subgroup with specific clinical challenges. Appropriate treatment guidelines for this FEP subgroup are thus needed.

Neuroimaging on Brain Structural and Functional Abnormality of Borderline Personality Disorder

This article is a comprehensive review of borderline personality disorder (BPD) based on the neuroimaging technique. The paper incorporated the etiology of BPD, the correlated brain structure and function abnormality of BPD found by neuroimaging techniques, influence of brain abnormality and recommendations for future research directions. The method used in the paper is to generalise results from pre-existing research and studies by reviewing the literature. The results and discussion section will focus on the comparison between BPD and non-BPD subjects, intending to highlight the most significant anatomical and functional abnormalities in the brain such as the hippocampus, the amygdala and the primary visual processing area. Furthermore, the impact of early trauma, and the connection between brain abnormalities and emotional dysregulation will be discussed in the paper. The suggestions and discussions section at the end will cover the current limitation of BPD neuroimaging research based on the selection bias on gender and provide directions for future research. The overall goal of the current study is to increase knowledge about BPD.

Stress and pain regulation: Parallel processes among traumatized individuals

IntroductionThe human reaction to traumatic events is often marked by a dialectic alteration of two emotional states –a state characterized by intrusion, anxiety and hyperarousal, and a state of denial marked by dissociation and numbing. These two seemingly opposite states represent attempts to modulate stress, as gradual reduction of their intensity represents an adaptation to stress. Maladaptive reactions to trauma, however, reflect disrupted regulation capacities, manifested as persistent over-modulation or under-modulation of stress.ObjectivesTo demonstrate that these manifestations of disrupted regulation, as observed among individuals with posttraumatic stress disorder (PTSD) and borderline personality disorder (BPD) are also reflected in patterns of pain modulation.MethodsThree studies using self-report questionnaires and psychophysical tests, assessing sensitivity to pain, as reflected by pain thresholds, and reactivity to suprathreshold noxious stimuli, as implicated in their ratingResultsStudy 1 Included 32 PTSD outpatients, 29 anxiety disorder outpatients, and 20 healthy controls. PTSD patients reported higher rates of chronic pain (83.3%) than anxiety patients (42.0%) and controls (5.0%). PTSD severity correlated with chronic pain severity (r = 0.61, p < 0.01). PTSD patients displayed a unique paradoxical pain profile, according to which their pain thresholds were significantly higher than those of the anxiety patients and controls (p < 0.01), but they perceived suprathreshold stimuli as being much more intense (p < 0.01).Study 2 included 32 PTSD outpatients and 43 healthy controls. Findings replicated the paradoxical pain profile among PTSD patients. Pain thresholds were positively associated with dissociation level (b = 0.49; p < 0.05) and negatively associated with anxiety level (b = -0.63, p < 0.01). Pain ratings were positively associated with anxiety (b = 0.52, p < 0.05) and negatively related to dissociation levels (b = -.51, p < 0.05).Study 3 included 46 women diagnosed with BPD and 47 healthy controls. Women with BPD reported higher levels of childhood trauma (p < 0.05) than the controls. They also demonstrated higher pain thresholds (p < 0.05). Among subjects with high levels of body dissociation, implicated by reduced body awareness, those with BPD demonstrated hyposensitivity to pain, manifested in higher pain thresholds, lower suprathreshold pain ratings, and pain evoked by higher temperature, than the controls. Among those with low levels of body dissociation, BPD subjects demonstrated increased reactivity to pain as manifested in higher pain ratings and pain evoked by lower temperature.ConclusionsThese findings demonstrate the association between over-modulation and under-modulation of stress and over-modulation and under-modulation of pain, respectively, among PTSD and BPD patients. These findings point to parallel processes of disrupted regulation among traumatized individuals.Disclosure of InterestNone Declared

Identifying Disease-Specific Neural Reactivity to Psychosocial Stress in Borderline Personality Disorder

BackgroundPatients with borderline personality disorder (BPD) typically present emotion dysregulation (ED) when faced with adversity. However, it is argued that altered stress response may be more influenced by ED than BPD-specific traits. Here, we investigated this issue with functional magnetic resonance imaging using another ED condition as clinical control, i.e., bipolar disorder (BD), and controlling for ED traits. MethodsWe recruited 17 patients with BD, 24 patients with BPD, and 32 healthy control (HC) subjects. We adapted a functional magnetic resonance imaging–compatible psychosocial stressor task (Montreal Imaging Stress Task) in which participants are placed under time pressure when performing mental calculations and then receive immediate performance feedback (positive, negative, and neutral). ED traits were measured via self-report questionnaires targeting cognitive emotion dysregulation, affective lability, and trait anger and anxiety. ResultsRelative to patients with BD and HC subjects, patients with BPD exhibited overactive corticolimbic reactivity across all conditions, particularly in self-monitoring and emotion regulation regions such as the orbitofrontal cortex and anterior insula, even when controlling for ED. Conversely, patients with BD exhibited hypoactive corticolimbic reactivity to all feedback conditions compared with patients with BPD and HC subjects, even after controlling for ED. HC subjects exhibited significantly lower amygdala/hippocampus activity compared with both clinical groups, although this did not survive when controlling for ED. ConclusionsThis study provides new insight into BPD-specific neural stress responding, suggesting hyperactive self- and emotion-regulatory neural psychosocial stress responding, independent of ED traits. The findings also highlight the importance of considering BPD as a diagnostic profile distinguishable from other ED disorder clinical groups.

Investigating the Relationship between Autistic Traits, Ruminative Thinking, and Suicidality in a Clinical Sample of Subjects with Bipolar Disorder and Borderline Personality Disorder

(1) Background: Previous literature reported in both subjects with Borderline personality disorder (BPD) and Bipolar disorder (BD) higher levels of autistic traits, linked to a greater suicidality risk. The aim of this study was to evaluate and compare the presence of autistic traits in a sample of individuals with BD or BPD, with a specific focus on suicidality. (2) Methods: We recruited two clinical samples of subjects (BPD and BD) and a control group without a diagnosis according to DSM-5 (CTL). Subjects were assessed with the AdAS Spectrum, the RRS and, for evaluating suicidality, the MOODS-SR. (3) Results: The CTL group showed significantly lower scores of both BD and BPD on AdAS Spectrum, RRS, and suicidality scores. BPD subjects showed significantly lower scores than BD ones in most of AdAS Spectrum domain scores. Correlation and regression analyses highlighted specific patterns of association among AdAS Spectrum domains, RRS, and suicidality in each clinical group. (4) Conclusions: Both BPD and BD individuals show greater levels of autistic traits, which seem to be distributed in a continuum featuring the highest levels among BD subjects. In both disorders, higher autistic traits were linked to suicidal tendencies, although with different patterns of association between BD and BPD subjects.

Interpersonal Psychotherapy as a Single Treatment for Borderline Personality Disorder: A Pilot Randomized-Controlled Study.

Recent guidelines share the recommendations that psychotherapy plays a central role in the treatment of borderline personality disorder (BPD). In recent years, interpersonal psychotherapy adapted for treating BPD (IPT-BPD) was added to specific psychotherapies and was tested in combination with pharmacotherapy. The present study is aimed to assess the efficacy of IPT-BPD revised (IPT-BPD-R) as single treatment in a sample of BPD patients. Results obtained in a group of patients receiving IPT-BPD-R were compared with those observed in a control group in waiting list plus clinical management (WL/CM). Forty-three BPD subjects were randomly allocated to one of the two arms. Patients were assessed at baseline and after 10 months with the following assessment instruments: Clinical Global Impression Scale, Severity item (CGI-S), Social Occupational Functioning Assessment Scale (SOFAS), Borderline Personality Disorder Severity Index (BPDSI), Barratt Impulsiveness Scale, version 11 (BIS-11), Modified Overt Aggression Scale (MOAS), and Self Harm Inventory (SHI). Statistical analysis was performed with one-way analysis of variance (ANOVA) or chi-square test to compare baseline characteristics of the two treatment groups. Comparison of score changes at the end of the trial between the two groups was calculated for each rating scale with the analysis of variance for repeated measures. Seven patients (16.3%) discontinued the treatment in the first month of the trial for non-adherence. We found a significant effect within subjects (trial duration) for all rating scales, except for the MOAS. A significant effect between subjects (treatment modality) was found for CGI-S; SOFAS; BIS-11 total score and subscale “non-planning impulsivity”; BPDSI total score and items “interpersonal relationships,” “impulsivity,” and “identity.” So, results showed differences between groups in favor of psychotherapy in terms of reduction of severity of general psychopathology, improvement of social and occupational functioning, and decrease of global BPD symptoms and three specific domains. On the other hand, we did not find any differences between groups for self-harm behaviors and aggressive behaviors.

Dysfunction of Empathy and Related Processes in Borderline Personality Disorder: A Systematic Review.

After participating in this activity, learners should be better able to:• Assess differences between adult patients with the diagnosis of borderline personality disorder (BPD) and healthy control subjects in terms of empathy and related processes• Evaluate the effects of empathy or related processes as factors contributing to abnormal social functioning in BPD ABSTRACT: We reviewed 45 original research studies, published between 2000 and 2019, to assess differences between adult patients with the diagnosis of borderline personality disorder (BPD) and healthy control subjects in terms of empathy and related processes (i.e., theory of mind, mentalizing, social cognition, and emotional intelligence). Thirty-six studies reported deficits of empathy or related processes in patients with BPD. Enhanced emotional empathy in BPD was also reported in eight studies, all of which revealed that patients had increased scores of personal distress on the Interpersonal Reactivity Index self-report questionnaire. Six studies did not find significant differences between patients with BPD and healthy control subjects in terms of empathy or related processes. No study reported enhanced cognitive empathy, social cognition, or emotional intelligence in patients with BPD. We postulate that deficits of empathy or related processes contribute to preempting the formation of stable interpersonal relationships, whereas enhanced emotional empathy might lead to personal (and interpersonal) distress, further contributing to abnormal social functioning in BPD.

Hypersensitivity or hyperreactivity? an experimental investigation in borderline personality disorder

Objective: Starting from the controversial results showed by empirical research on Linehan’s Biosocial model of Borderline Personality Disorder (BPD), this study aims to empirically evaluate Linehan’s conceptualization of emotional hypersensitivity and hyperreactivity, as well as to investigate the role of pre-existing emotional states in BPD altered physiological responsivity. Methods: We asked 24 participants (BPD = 12; Healthy Controls = 12) to complete a self-reported questionnaire (Positive and Negative Affect Schedule) in order to assess their pre-task affective state. Subsequently, 36 emotional pictures from four valence categories (i.e. erotic, negative, positive, neutral) were administered while assessing participants self-reported and electrodermal responses. Results: BPD patients showed higher levels of pre-task negative affectivity as well as an enhanced physiological response to neutral stimuli. No main BPD group effect was found for the physiological data. Moreover, pre-task negative affectivity levels were exclusively related to physiological responses among BPD subjects. Discussion: Our findings supported the hypersensitivity hypothesis operationalized as an enhanced responsiveness to non-emotional cues. Hyperreactivity assumption was not supported. Conversely, our study revealed heightened physiological responses in relation to pre-existent negative emotional states in BPD. We discussed our results in the context of the putative pathological processes underlying BPD.

Common and distinct brain functional alterations in pharmacotherapy treatment-na\xefve female borderline personality disorder patients with and without auditory verbal hallucinations: a pilot study

Auditory verbal hallucinations (AVHs) are experienced by approximately 25% of patients with borderline personality disorder (BPD). Despite the high incidence, the pathological features of AVH in BPD remain unclear. This study aimed to investigate whole-brain functional connectivity (FC), as measured by functional connectivity density (FCD), and its relationship with AVH in BPD. 65 pharmacotherapy treatment-naïve female BPD patients (30 with AVH and 35 without AVH), and 35 female healthy controls were investigated. Functional magnetic resonance imaging (fMRI) data were collected to assess whole-brain FC and functional connectivity density mapping (FCDM) was applied to the fMRI data to compute FCD features. Compared to the healthy controls, both BPD groups (BPD–AVH and BPD without AVH) exhibited significantly higher gFCD values in the bilateral prefrontal lobe, bilateral orbital lobule, and bilateral insula, and significantly lower gFCD values in the SMA, right anterior temporal lobule, and the ACC. These altered regions were significantly associated with AVH in the BPD subjects. Moreover, higher gFCD values were observed in the left posterior temporal lobule and posterior frontal lobule. Aberrant alterations also emerged in the left posterior temporal lobule and posterior frontal lobule, mainly in Broca and Wernicke regions. Nevertheless, there was no significant correlation between gFCD values and the severity of AVH as measured by the AVH scores. In summary, we have identified aberrations in the FC and brain metabolism of the aforementioned neural circuits/networks, which may provide new insights into BPD–AVH and facilitate the development of therapeutic approaches for treating AVH in BPD patients.

Rejection sensitivity in borderline personality disorder and the cognitive-affective personality system: A meta-analytic review.

Rejection sensitivity (RS) is one the of core features of borderline personality disorder (BPD). The cognitive-affective personality system (CAPS) might represent an alternative framework for analyzing the relationship between RS and BPD. The current meta-analytic review (N = 39 studies) aims at evaluating how, and to what extent, CAPS-RS process dynamics (i.e., rejection expectancies, encoding processes, and affect reactions) are related to BPD. The results showed a large difference between BPD and non-BPD subjects in rejection expectancies across several situations. These findings were replicated when considering encoding processes and affective reactions, especially in relation to social inclusion situations. Therefore, it can be argued that RS process dynamics might reflect CAPS principles explaining personality pathology, especially BPD. (PsycINFO Database Record (c) 2019 APA, all rights reserved).

Emotion dysregulation in adults suffering from attention deficit hyperactivity disorder (ADHD), a comparison with borderline personality disorder (BPD)

BackgroundEmotional dysregulation (ED) is now considered as an important symptom of attention deficit hyperactivity disorder (ADHD). It is believed to have a considerable impact on the severity of the disorder, one’s global functioning, and the prognosis. Our research aimed to evaluate and compare ED and cognitive emotional regulation strategies between ADHD and borderline personality disorder (BPD) patients.MethodsFour hundred six French-speaking outpatients (N = 279 ADHD, N = 70 BPD, N = 60 BPD + ADHD) were assessed with the Emotion Reactivity Scale (ERS), the Cognitive Emotional Regulation Questionnaire (CERQ), The Basic Empathy Scale (BES-A), the Adult ADHD Self-Report Scale (ARSV-v1.1) and the Beck Depression Inventory II (BDI-II). ADHD, BPD and comorbid patients were compared with each other and with samples of controls extracted from already published data.ResultsADHD patients, although having higher ED than samples derived from the general population, had less ED, better control over their emotions with higher use of adaptive cognitive strategies and lesser use of non-adaptive strategies than BPD patients. However, ADHD subjects had similar scores as BPD subjects when looking at difficulties in perceiving self and others. ED generated considerable distress in all groups and was also positively associated with ADHD symptomatology. ADHD patients with comorbid BPD had the highest scores of ED.ConclusionsOur results suggest that there may be similarly inefficient cognitive emotional regulation skills leading to ED in both disorders (ADHD and BPD). However, ADHD patients showed a higher use of adaptive cognitive emotional strategies and a lower level of ED than BPD patients.

The relationship between religion and health-related behaviours in patients with borderline personality disorder

ABSTRACTWith addictive disorders frequently co-occurring among patients with borderline personality disorder (BPD), exploring factors that may influence health-related behaviours, like religious involvement, is important. This study assesses whether religious involvement is associated with smoking and alcohol use disorders (AUDs) in BPD subjects. This study used data from Wave 2 of the National Epidemiological Survey on Alcohol and Related Conditions (NESARC), which used the Alcohol Use Disorder and Associated Disabilities Interview Schedule–DSM-IV (AUDADIS-IV) as its assessment instrument. The AUDADIS-IV assessed personality disorders, tobacco usage, the presence of AUDs, and religious involvement. Attending a place of worship and weekly or more frequent worship attendance were significantly associated with reduced likelihood of current smoking and AUDs among BPD subjects. AUDs were also significantly less common in those reporting higher subjective religiousness. In conclusion, people with BPD who are religiously inclined are less likely to engage in addictive behaviours, specifically smoking and AUDs.

Emotional Responsiveness in Borderline Personality Disorder: The Role of Basal Hyperarousal and Self-Reported Emotional Regulation.

The present study aims to test the hypothesis of biological hyperarousal and hyperreactivity underpinning the dysfunctional emotional processes of borderline personality disorder (BPD). Self-reported (quality and intensity of emotions) and physiological (respiratory sinus arrhythmia [RSA] and heart rate) data were collected in 14 clinical subjects with BPD and in 14 control subjects (healthy controls [HCs]), during the administration of six video clips with different emotional contents. Our findings showed a constant hyperarousal state (lower RSA) in the clinical group, supporting the hypothesis of a biological vulnerability to emotional dysregulation. BPD patients showed lower self-reported happiness in positive stimuli compared with HCs and a significant association between emotional dysregulation and physiological hyperreactivity to neutral stimuli. Our data support the hypothesis of a constant condition of physiological preparedness to threat and danger in BPD subjects. Moreover, our results highlight the influence of self-reported ability in regulating emotions in explaining BPD responses to specific emotional situations.

Bridging the Gap Between Remission and Recovery in BPD: Qualitative Versus Quantitative Perspectives.

The 10-year outcome for patients with borderline personality disorder (BPD) is diagnostic remission in 85% to 93%; however, less than half achieve good social and vocational functioning, and few attain full psychosocial recovery. To assess the gap between diagnostic remission and psychosocial recovery, quantitative measures of outcome were compared with narrative reports of psychosocial functioning in 150 BPD subjects followed prospectively from 2 to 31 years (mean 9.94 years). Subjects with the best and the worst outcomes were compared on symptom changes over time, and on efforts to improve psychosocial functioning. At intake, poor outcome subjects were more impaired than those with good outcomes, with more borderline psychopathology, hospitalizations, and poverty. At follow-up, 53.8% of good outcome subjects complained of continuing problems with depression, 33.3% with anger and impulse control, and 25.6% with unstable relationships. Despite objective measures of improvement, narrative reports documented residual BPD symptoms, comorbidity, and unemployment interfering with psychosocial recovery.

Levels of Acceptance and Forgiveness Reported by Patients With BPD and Personality-Disordered Comparison Subjects Over 20 Years of Prospective Follow-Up.

This study had two objectives: to determine the levels of acceptance and forgiveness reported by patients with borderline personality disorder (BPD) and personality-disordered comparison subjects and by recovered versus non-recovered patients with BPD over 20 years of prospective follow-up. Levels of acceptance and forgiveness were reassessed every 2 years. Patients with BPD reported levels of these states that were approximately 70% lower than comparison subjects at baseline. These states increased significantly over time for patients with BPD but not for comparison subjects. Recovered patients with BPD reported approximately three times the levels of these states than non-recovered patients with BPD. These levels increased for both groups over time; one state (accepting of myself) increased at a significantly steeper rate for recovered patients with BPD. These results suggest that patients with BPD report becoming more accepting and forgiving over time. Additionally, recovery status is significantly associated with increasing time in these states.

Emotional Reactivity in Borderline Personality Disorder: Theoretical Considerations Based on a Meta-Analytic Review of Laboratory Studies.

Emotional hyperreactivity (Linehan, 1993) is the most investigated construct in borderline personality disorder (BPD). However, experimental studies revealed mixed results on the topic. Our main objective is to comprehensively summarize the results on emotional reactivity in BPD compared to healthy controls (HCs), using a meta-analytic approach, considering different emotional response systems (physiology, behavior, self-report). We included 31 experimental studies (1,675 subjects). We observed null to small effect sizes for several physiological and behavioral outcomes. Conversely, BPD subjects revealed a moderate to large difference in valence attributed to emotional stimuli and a small difference in self-reported arousal. Significant differences in pooled effect sizes were found between self-report and physiological outcomes. Several sources of heterogeneity were explored. In general, the hyperreactivity hypothesis was not supported. Additional dysfunctional processes should be taken into consideration to understand BPD emotional responsiveness.

Differential Valuation and Learning From Social and Nonsocial Cues in Borderline Personality Disorder

BackgroundVolatile interpersonal relationships are a core feature of borderline personality disorder (BPD) and lead to devastating disruption of patients’ personal and professional lives. Quantitative models of social decision making and learning hold promise for defining the underlying mechanisms of this problem. In this study, we tested BPD and control subject weighting of social versus nonsocial information and their learning about choices under stable and volatile conditions. We compared behavior using quantitative models. MethodsSubjects (n = 20 BPD, n = 23 control subjects) played an extended reward learning task with a partner (confederate) that requires learning about nonsocial and social cue reward probability (the social valuation task). Task experience was measured using language metrics: explicit emotions/beliefs, talk about the confederate, and implicit distress (using the previously established marker self-referentiality). Subjects’ weighting of social and nonsocial cues was tested in mixed-effect regression models. Subjects’ learning rates under stable and volatile conditions were modeled (Rescorla–Wagner approach) and group × condition interactions tested. ResultsCompared to control subjects, BPD subject debriefings included more mentions of the confederate and less distress language. BPD subjects also weighted social cues more heavily but had blunted learning responses to (nonsocial and social) volatility. ConclusionsThis is the first report of patient behavior in the social valuation task. The results suggest that BPD subjects expect higher volatility than control subjects. These findings lay the groundwork for a neurocomputational dissection of social and nonsocial belief updating in BPD, which holds promise for the development of novel clinical interventions that more directly target pathophysiology.

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.

Correlates of autistic traits among patients with borderline personality disorder

BackgroundDespite discrete autism-related dimensions, such as deficits in communication, empathy and mentalizing are likely to affect the development of personality and despite they actually frequently occur in borderline patients, no research has so far investigated the relationship between autistic traits and Borderline Personality Disorder (BPD). The objective of this study is to investigate the clinical significance of autistic traits in subjects with BPD. MethodsThe sample included 50 patients with a clinical diagnosis of BPD and 69 healthy controls.The Structured Clinical Interview for DSM-5 Clinician Version was used to establish the presence of comorbid mental disorders among BPD subjects and to confirm the absence of lifetime mental disorders in the control group. Participants were also asked to fill three self-report instruments: the Adult Autism Subthreshold Spectrum (AdAS Spectrum), the Autism Spectrum Quotient (AQ) and the Mood Spectrum Self-Report (MOODS-SR). ResultsPatients with BPD reported higher autistic traits than healthy individuals. Moreover, autistic traits were shown to exert a significant impact on some clinical features and associated manifestation of BPD, such as suicidality and lifetime exposure to physical and/or sexual abuse. ConclusionsSubthreshold autism spectrum may be relevant for subjects suffering from BPD and future research may further address clinical correlates of autistic traits among patients with this disorder.

Monoamine Oxidase-A Genetic Variants and Childhood Abuse Predict Impulsiveness in Borderline Personality Disorder.

ObjectiveImpulsivity is a core feature of borderline personality disorder (BPD) and antisocial personality disorder (ASPD) that likely arises from combined genetic and environmental influences. The interaction of the low activity variant of the monoamine oxidase-A (MAOA-L) gene and early childhood adversity has been shown to predict aggression in clinical and non-clinical populations. Although impulsivity is a risk factor for aggression in BPD and ASPD, little research has investigated potential gene-environment (G×E) influences impacting its expression in these conditions. Moreover, G×E interactions may differ by diagnosis.MethodsFull factorial analysis of variance was employed to investigate the influence of monoamine oxidase-A (MAO-A) genotype, childhood abuse, and diagnosis on Barratt Impulsiveness Scale-11 (BIS-11) scores in 61 individuals: 20 subjects with BPD, 18 subjects with ASPD, and 23 healthy controls.ResultsA group×genotype×abuse interaction was present (F(2,49)=4.4, p=0.018), such that the interaction of MAOA-L and childhood abuse predicted greater BIS-11 motor impulsiveness in BPD. Additionally, BPD subjects reported higher BIS-11 attentional impulsiveness versus ASPD participants (t(1,36)=2.3, p=0.025).ConclusionThese preliminary results suggest that MAOA-L may modulate the impact of childhood abuse on impulsivity in BPD. Results additionally indicate that impulsiveness may be expressed differently in BPD and ASPD.