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Biomedical subjects

Barbara Stanley

Publications and source records attributed to Barbara Stanley.

18 recordsLinked to original sources
PubMed2006

Early visual information processing deficit in depression with and without Borderline Personality Disorder.

Backward masking is a measure of early visual information processing usually abnormal in psychotic disorders. Previous studies of subjects with Borderline Personality Disorder have been inconsistent regarding their impairment or lack of impairment on backward masking. We examined visual backward masking performance in samples of unmedicated depressed patients with (n=12) and without (n=16) Borderline Personality Disorder, and healthy volunteers (n=18). Accuracy was poorer in depressed BPD patients, relative to both non-BPD depressed and healthy comparison subjects. As in previous studies, no differences in accuracy were found between non-BPD depressed patients and healthy comparison subjects. Differences in BPD subjects' accuracy were most evident at the fastest ISI and were not attributable to intercurrent psychotic symptoms. Beyond these group differences, accuracy at faster ISI's correlated with self-ratings of impulsiveness in all patients, and may be a general correlate of this trait. Poor early information processing appears to be a feature of Borderline Personality Disorder, and may play a role in the impulsive behavior that is characteristic of the disorder.

Adult↗
PubMed2006

Aggressiveness, not impulsiveness or hostility, distinguishes suicide attempters with major depression.

BACKGROUND: Impulsiveness, hostility and aggressiveness are traits associated with suicidal behavior, but also with borderline personality disorder (BPD). The presence of large numbers of BPD subjects in past attempter samples may distort the relative importance of each of these traits to predicting suicidal behavior, and lead to prospective, biological and genetic models that systematically misclassify certain subpopulations of suicidal individuals. METHOD: Two hundred and seventy-five subjects with major depressive disorder (MDD), including 87 with co-morbid BPD (69 past suicide attempters, 18 non-attempters) and 188 without BPD (76 attempters, 112 non-attempters) completed standard impulsiveness, hostility and aggressiveness ratings. Differences between past suicide attempters and non-attempters were examined with the sample stratified by BPD status. RESULTS: As expected, BPD subjects scored significantly higher than non-BPD subjects on all three trait measures. Stratifying by BPD status, however, eliminated attempter/non-attempter differences in impulsiveness and hostility in both patient subgroups. Past suicide attempters in each of the two subgroups of patients were only distinguished by higher levels of aggressiveness. CONCLUSIONS: Once BPD is accounted for, a history of aggressive behavior appears to be the distinguishing trait characteristic of suicide attempters with major depression, rather than global personality dimensions such as impulsiveness or hostility. Aggressiveness, and not these related traits, may be the ideal target for behavioral, genetic and biological research on suicidal behavior, as well as for the clinical assessment of suicide risk.

Adult↗
PubMed2006

The impact of borderline personality disorder and anxiety on neuropsychological performance in major depression.

Previous studies of neuropsychological performance in borderline personality disorder (BPD) have exhibited mixed results. The high rate of co-occurring major depressive disorder (MDD) in BPD makes it difficult to specify whether neuropsychological deficits in BPD predominantly reflect co-occurring MDD or unique aspects of their psychopathology. To address this issue, 22 participants with borderline personality disorder and concurrent major depressive disorder (BPD-MDD) and 33 participants with MDD and no concurrent personality disorder were compared on a neuropsychological battery that assessed seven domains of performance: general intellectual functioning, motor skill, psychomotor speed, attention, memory, working memory, and executive function. Neuropsychological performance did not differ between BPD-MDD and MDD. However, BPD-MDD participants reported higher levels of anger, anxiety, and of overall emotional distress compared to MDD. When levels of anxiety were controlled, BPD-MDD participants exhibited superior general intellectual performance, psychomotor speed, and attention. Deficits found in previous BPD samples may reflect their susceptibility to co-occurring MDD. The impact of anxiety on neuropsychological performance in BPD, though, indicates a need for future experimental studies of the effects of mood on cognitive function to determine whether mood dysregulation, rather than core depressive symptoms, underlie cognition impairments in BPD.

Adult↗
PubMed2006

Heightened subjective experience of depression in borderline personality disorder.

Despite the frequent comorbidity of major depression and borderline personality disorder (BPD), limited research has examined what effect this comorbidity has on the severity, course, and presentation of depression. The purpose of this study was to examine whether the severity of major depressive disorder (MDD) in the context of comorbid borderline personality disorder (BPD) differs from MDD when comorbid BPD is not present and to determine whether different measures of depression yield convergent findings. Sixty patients diagnosed with DSM-IV MDD participated in this study. Twenty-nine were diagnosed with DSM-IV BPD, while the remaining 31 had no Axis II diagnosis. Depression was evaluated with both clinician (Hamilton Rating Scale for Depression) and self-report (Beck Depression Inventory) ratings. While the two groups were rated as similarly depressed by clinicians on the overall rating and the factor scores, the MDD/BPD group reported more severe depressive symptoms on the self-report measure. This difference was significant even after controlling for clinician-rated severity. Gender interacted with diagnosis, males in the BPD group showed the largest discrepancies between clinician ratings and self-reports. Posthoc analyses of HDRS factors with the BDI showed that the clinicianrated cognitive disturbance and retardation factors were correlated with self-rated severity overall. Within subgroups, only the retardation factor was correlated with the BDI. Our results suggest that while depressed individuals with and without BPD may be rated as similarly depressed when assessed with objective rating methods, the subjective experience of the depression may be rated as more intense or severe by patients with comorbid BPD. The mechanism underlying this effect remains unknown, and requires further research.

Adolescent↗
PubMed2006

Interpersonal precipitants and suicide attempts in borderline personality disorder.

Borderline personality disorder (BPD) is often characterized by multiple low lethality suicide attempts triggered by seemingly minor incidents, and less commonly by high lethality attempts that are attributed to impulsiveness or comorbid major depression. The relationships among life events, impulsiveness, and type of suicidal behavior has hardly been studied in BPD and mood disorders. This study compared depressed attempters with and without BPD to identify specific suicide precipitants and risk factors in BPD and their relationship to severity of suicidal behavior. Attempters with comorbid BPD and major depressive disorder (MDD) had a higher number of lifetime suicide attempts; made their first attempt at a younger age; reported more interpersonal triggers; and had higher levels of lifetime aggression, hostility, and impulsivity, compared with attempters with major depression only. Environmental triggers of attempts in BPD are more likely to be interpersonal stressors. Lethality of attempts in BPD plus MDD is equal to that in MDD only, indicating that the seriousness of precipitants is unrelated to the lethality of the suicidal behavior. The differences between groups suggest that risk assessment and treatment should target both depression and personality disorder in those with combined illness.

Adult↗
PubMed2005

Executive neurocognition, memory systems, and borderline personality disorder.

Borderline Personality Disorder (BPD) is a common, disabling, and burdensome psychiatric condition. It is characterized by turbulent fluctuations of negative emotions and moods, unstable and conflictual interpersonal relationships, an incoherent and often contradictory sense of self, and impulsive, potentially lethal self-injurious behaviors. The neurobehavioral facets of BPD have not been extensively studied. However, clinical theoreticians and researchers have proposed that the symptoms and behaviors of BPD are, in part, associated with disruptions in basic neurocognitive processes. This review summarizes and evaluates research that has investigated the relationship between executive neurocognition, memory systems, and BPD. Three historical phases of research are delineated and reviewed, and the methodological and conceptual challenges this body of investigation highlights are discussed. Laboratory-based assessment of executive neurocognition and memory systems is integral to an interdisciplinary approach to research in BPD. Such an approach holds promise in elucidating the neurobehavioral facets, development, diagnostic boundaries, prevention, and optimal interventions for this debilitating and enigmatic disorder.

Borderline Personality Disorder↗
PubMed2005

Can biological tests assist prediction of suicide in mood disorders?

Predicting suicide is difficult due to its low base-rate and the limited specificity of clinical predictors. Prospective biological studies suggest that dysfunctions in the serotonergic system and hypothalamic-pituitary-adrenal axis have some predictive power for completed suicide in mood disorders. A prediction model that incorporates biological testing to increase specificity and sensitivity of prediction of suicide is of potential clinical value. Meta-analyses of prospective biological studies of suicide and cerebrospinal fluid 5-hydroxyindoleacetic acid (CSF 5-HIAA) and suicide and the dexamethasone suppression test (DST) in mood disorders using the penalized quasi-likelihood (PQL) and bootstrap method yield odds ratios for prediction of suicide of 4.48 and 4.65 respectively. Two combinatory prediction models, the first requiring positive results on more than one test, and the second requiring a positive result on either one of two tests, were tested to assess their sensitivity, specificity, and predictive power using biological data from published and unpublished studies. The prediction model that requires both DST and CSF 5-HIAA tests to be positive results in 37.5% sensitivity, 88% specificity, and has a positive predictive value of 23%. The prediction model that requires either DST or CSF 5-HIAA tests to be positive results in 87.5% sensitivity, 28% specificity, and has a positive predictive value of 10%. Thus, models attempting to predict a lethal outcome that is uncommon perform very differently making model choice of major importance. Further work on refining biological predictors and integration with clinical predictors is needed to optimize a model to predict suicide in the clinic.

Biomarkers↗
PubMed2005

Posttraumatic stress disorder comorbid with major depression: factors mediating the association with suicidal behavior.

OBJECTIVE: The purpose of the study was to determine if patients with a history of major depressive episode and comorbid posttraumatic stress disorder (PTSD) have a higher risk for suicide attempt and differ in other measures of suicidal behavior, compared to patients with major depressive episode but no PTSD. In addition, to explore how PTSD comorbidity might increase risk for suicidal behavior in major depressive episode, the authors investigated the relationship between PTSD, cluster B personality disorder, childhood sexual or physical abuse, and aggression/impulsivity. METHOD: The subjects were 230 patients with a lifetime history of major depressive episode; 59 also had lifetime comorbid PTSD. The demographic and clinical characteristics of subjects with and without PTSD were compared. Multivariate analysis was used to examine the relationship between suicidal behavior and lifetime history of PTSD, with adjustment for clinical factors known to be associated with suicidal behavior. RESULTS: Patients with a lifetime history of PTSD were significantly more likely to have made a suicide attempt. The groups did not differ with respect to suicidal ideation or intent, number of attempts made, or maximum lethality of attempts. The PTSD group had higher objective depression, impulsivity, and hostility scores; had a higher rate of comorbid cluster B personality disorder; and were more likely to report a childhood history of abuse. However, cluster B personality disorder was the only independent variable related to lifetime suicide attempts in a multiple regression model. CONCLUSIONS: PTSD is frequently comorbid with major depressive episode, and their co-occurrence enhances the risk for suicidal behavior. A higher rate of comorbid cluster B personality disorder appears to be a salient factor contributing to greater risk for suicidal acts in patients with a history of major depressive episode who also have PTSD, compared to those with major depressive episode alone.

Adult↗
PubMed2004

Adapting supportive psychotherapy for individuals with Borderline personality disorder who self-injure or attempt suicide.

We have utilized supportive therapy (ST) with an outpatient population with borderline personality disorder (BPD) who also engage in nonsuicidal self-injurious and suicidal behavior. In recent years, ST has been described as an active psychotherapeutic approach that may have efficacy comparable to other psychotherapies. ST emphasizes the mobilization of strengths to enhance self-esteem and utilize adaptive defenses and positive coping skills. Patients with BPD who self-injure and attempt suicide require integration of tangible solution-focused approaches with standard ST in order to address negative thinking patterns, impulsive behavior, and affective dysregulation, along with crisis intervention during periodic crisis states. ST appears to be well tolerated by patients with BPD who have self-injurious behavior and may be efficacious in engaging BPD patients in treatment and in minimizing the frequency and intensity of self-injurious and suicidal behavior.

Affect↗
PubMed2004

Familial transmission of mood disorders: convergence and divergence with transmission of suicidal behavior.

OBJECTIVE: Both mood disorder and suicidal behavior are familial. In this study, the authors examine the factors associated with the familial transmission of these two related conditions to learn which are shared or unique risk factors for familial transmission. METHOD: The 285 offspring of 141 probands with mood disorder were studied. Proband and offspring characteristics associated with offspring mood disorder were examined by univariate statistics, logistic and Cox regression, and path analysis. RESULTS: Parental history of sexual abuse was associated with an increased risk of offspring mood disorder. The relationship between parent sexual abuse and offspring mood disorder was mediated by offspring impulsive aggression, sexual abuse, and anxiety disorder. In offspring, higher levels of impulsive aggression were associated with earlier age at onset of mood disorder. Offspring suicide attempt was mainly related to offspring mood disorder, with additional contributions from offspring sexual abuse and impulsive aggression. CONCLUSIONS: The pathways associated with the familial transmission of mood disorder and of suicide attempt are similar but not identical. Prevention of early-onset mood disorder by targeting high- risk families may help to prevent the transmission of suicidal behavior. Because these data are cross-sectional, these results must be confirmed by prospective follow-up.

Adolescent↗
PubMed2004

Protection of human subjects in intervention research for suicidal behavior.

OBJECTIVE: Three domains of ethical conduct outlined in the U.S. Food and Drug Administration's 1998 Belmont Report on protection of human research subjects-respect for persons, beneficence, and justice-have posed specific dilemmas in the design of intervention studies for suicidal behavior. These issues include questions about suicidal patients' capacity to provide informed consent, the risk of some lethal outcomes, the possibility of imminent suicide risk associated with patients' right to discontinue the study treatment, and the need for a higher level of monitoring of suicidal patients. The authors examine these and other issues and discuss ways they can be addressed in research design. METHOD: To illustrate solutions to these bioethical tensions, the authors describe the design of a randomized, controlled trial of pharmacotherapy for suicidal behavior in bipolar disorder. RESULTS: Using surrogate outcome measures, allowing prescription of rescue medications, integrating psychosocial interventions, and providing close clinical monitoring enable researchers to conduct research on suicidal behavior while maximizing adherence to the ethical recommendations outlined in the Belmont Report. Alternative study designs, such as add-on trials, in which the study treatment or placebo is added on to known effective treatment, may also be used in research on suicidal behavior. CONCLUSIONS: It is possible to design a randomized, controlled trial that minimizes the risk of morbidity and mortality for suicidal patients with bipolar disorder, but deliberation is required to address the bioethical tensions that arise.

Biomedical Research↗
PubMed2003

Peripubertal suicide attempts in offspring of suicide attempters with siblings concordant for suicidal behavior.

OBJECTIVE: The authors sought to determine 1) whether the risk for familial transmission of suicidal behavior is greater with increased family loading for suicide attempts, and 2) whether the transmission of suicidal behavior is mediated by impulsive aggression. METHOD: A reanalysis of a high-risk study compared the offspring of three mood disorder proband groups: suicide attempters with a sibling who also attempted suicide (N=19), suicide attempters whose siblings never made a suicide attempt (N=73), and nonsuicidal probands whose siblings also never engaged in suicidal behavior (N=73). Probands and offspring were assessed with respect to psychopathology, suicide attempt history, impulsive aggression, and exposure to familial adversity. RESULTS: Offspring of suicide attempters with siblings concordant for suicidal behavior showed a higher risk of suicide attempt than did offspring of nonsuicidal probands and had an earlier age at onset of suicidal behavior than offspring of suicide attempters with siblings discordant for suicidal behavior. Probands from sibling pairs concordant for suicidal behavior and their offspring reported greater lifetime impulsive aggression compared with each of the other two proband/offspring groups. In the offspring, impulsive aggression was the most powerful predictor of early age at first suicide attempt. CONCLUSIONS: Familial loading for suicide attempts may affect rates of transmission as well as age at onset of suicidal behavior, and its effect may be mediated by the familial transmission of impulsive aggression.

Adolescent↗
PubMed2002

Familial pathways to early-onset suicide attempt: risk for suicidal behavior in offspring of mood-disordered suicide attempters.

BACKGROUND: Although adoption, twin, and family studies have shown that suicidal behavior is familial, the risk factors for familial transmission from parent to child remain unclear. METHODS: A high-risk family study was conducted comparing the offspring of 2 mood-disordered groups: suicide attempters and nonattempters. Recruited from 2 sites, probands were 81 attempters and 55 nonattempters, with 183 and 116 offspring, respectively. Offspring were assessed by investigators masked to proband status. Probands and offspring were assessed with respect to psychopathologic findings, suicide attempt history, impulsive aggression, and exposure to familial environmental stressors. RESULTS: Offspring of attempters had a 6-fold increased risk of suicide attempts relative to offspring of nonattempters. Familial transmission of suicide attempt was more likely if (1) probands had a history of sexual abuse and (2) offspring were female and had a mood disorder, substance abuse disorder, increased impulsive aggression, and a history of sexual abuse. CONCLUSIONS: The offspring of mood-disordered suicide attempters are at markedly increased risk for suicide attempts themselves. Familial transmission of suicidal behavior in families with mood disorders almost always requires transmission of a mood disorder and is also related to the offspring's impulsive aggression and the familial transmission of sexual abuse. Early treatment of mood disorders and targeting impulsive aggression and sexual trauma may be helpful in the prevention and treatment of suicidal behavior in families with mood disorders.

Adolescent↗
PubMed2002

Suicidal and self-injurious behavior in personality disorder: controversies and treatment directions.

Contrary to common clinical perceptions, individuals with personality disorders attempt and commit suicide at nearly the same rate as individuals with major depression. In particular, those with borderline personality disorder are at high risk for suicidal behavior and nonsuicidal self-injury. Yet there is significant controversy surrounding the diagnosis of borderline personality disorder in terms of its existence, its definition and symptom structure, its Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) axis location, and its importance as a contributing factor to suicidality and nonsuicidal self-injury. Furthermore, both suicidal and nonsuicidal self-harm is prominent in borderline personality disorder. There is often confusion between suicidal and nonsuicidal self-injury with one sometimes mistaken for the other. Nonsuicidal self-injury is sometimes met with hospitalization, because it is viewed as life threatening. Alternately, the potential lethality of suicidal behavior is underestimated, because it occurs in the context of multiple low lethality self-harm behaviors. It is possible to view these behaviors as distinct yet on a spectrum in borderline personality-disordered patients. With respect to treatment of self-injury in personality disorders, some recent pharmacotherapy trials have been conducted, though efficacy is often unclear. Findings with respect to psychotherapy, particularly dialectical behavior therapy, a form of cognitive behavioral treatment, are promising.

Humans↗
PubMedDate not supplied

Borderline personality disorder, stigma, and treatment implications.

Borderline personality disorder (BPD) is often viewed in negative terms by mental health practitioners and the public. The disorder may have a stigma associated with it that goes beyond those associated with other mental illnesses. The stigma associated with BPD may affect how practitioners tolerate the actions, thoughts, and emotional reactions of these individuals. It may also lead to minimizing symptoms and overlooking strengths. In society, people tend to distance themselves from stigmatized populations, and there is evidence that some clinicians may emotionally distance themselves from individuals with BPD. This distancing may be especially problematic in treating patients with BPD; in addition to being unusually sensitive to rejection and abandonment, they may react negatively (e.g., by harming themselves or withdrawing from treatment) if they perceive such distancing and rejection. Clinicians' reactivity may be self-protective in response to actual behavior associated with the pathology. As a consequence, however, the very behaviors that make it difficult to work with these individuals contribute to the stigma of BPD. In a dialectical relationship, that stigma can influence the clinician's reactivity, thereby exacerbating those same negative behaviors. The result is a self-fulfilling prophecy and a cycle of stigmatization to which both patient and therapist contribute. The extent to which therapist distancing is influenced by stigma is an important question that highlights the possibility that the stigma associated with BPD can have an independent contribution to poor outcome with this population. A final issue concerns the available means for identifying and limiting the impact of stigmatization on the treatment of individuals with BPD.

Borderline Personality Disorder↗
PubMedDate not supplied

Impulsivity, suicidality and alcohol use disorders in adolescents and young adults with borderline personality disorder.

Borderline Personality Disorder (BPD) is a severe and disabling psychiatric condition that typically emerges in late adolescence or early adulthood. Nearly 50% of individuals with BPD have a co-occurring Alcohol Use Disorder (AUD) at some point in the course of their illness. This study explores clinical characteristics of adolescents and young adults (age 30 years and younger) with BPD and AUD (N=21) compared to BPD without any history of substance use disorders (N=17). Based on theoretical considerations and previous findings, we hypothesized that adolescents and young adults with BPD and AUDs would be more impulsive and exhibit higher rates of suicidal behavior than individuals with BPD and no substance use disorders. Consistent with our first hypothesis, the BPD/AUD group was more impulsive than the BPD only group. However, the two groups did not differ on measures of suicidal behavior. Overall, impulsivity was correlated with total number of suicide attempts in the adolescent/young adult group. When older BPD participants were included in the comparison (up to age 55), the BPD/AUD group exhibited more lifetime suicide attempts that were higher in medical lethality than the BPD only group, suggesting an overall increased lifetime suicide risk in the BPD/AUD group. The relationship between impulsivity, AUD, and suicidal behavior and lifetime suicide risk in adolescent and young adults with BPD is discussed.

Adult↗