Publications by authors named "Bagby R"

Objective: Our goal was to compare the original conceptualization of the alexithymia construct with the attention-appraisal model, focusing primarily on the removal of the reduced imaginal activity component, a seminal aspect of the construct in the original model. We also examined associations between alexithymia and emotional distress and emotion regulation, attachment, and trauma, and whether alexithymia is a transdiagnostic risk factor. We discuss differences between the models in the treatment of alexithymia and also differences in measurement.

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Interpersonal psychotherapy (IPT) and antidepressant medications are both first-line interventions for adult depression, but their relative efficacy in the long term and on outcome measures other than depressive symptomatology is unknown. Individual participant data (IPD) meta-analyses can provide more precise effect estimates than conventional meta-analyses. This IPD meta-analysis compared the efficacy of IPT and antidepressants on various outcomes at post-treatment and follow-up (PROSPERO: CRD42020219891).

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In this study, we compare the incremental predictive capacities of the , Section II personality disorders (SII-PDs) with Section III trait domains of the Alternative Model of Personality Disorders (AMPD) in a psychiatric outpatient sample ( = 185). To this end, a series of hierarchical regression analyses was conducted in which the 10 SII-PDs and the five AMPD trait domains served as the predictor variables and five areas of clinical dysfunction as the criterion variables. Two models for each criterion were tested.

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The Personality Inventory for DSM-5 (PID-5) was designed to measure the personality traits of the alternative model of personality disorders (AMPD). It is comprised of 25 lower order facet scales. Factor analytic investigation of these scales has consistently recovered five factors corresponding to the trait domains of the AMPD.

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The concept of (operational thinking) was introduced by French psychoanalysts in 1963 and a decade later was included as an essential component of the alexithymia construct as formulated by the U.S. analysts John Nemiah and Peter Sifneos.

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In a previous study, it was reported that the typically replicable factor structure of the Personality Inventory for Diagnostic and Statistical Manual of Mental Disorders, fifth edition (PID-5) was noninvariant across samples of Black American and White American university students. The investigators of that study attributed this noninvariance across these two racial groups to Black American racialization, defined as Black individuals living in a predominantly non-Black society. In the current investigation, we examined further the effects of Black racialization by examining PID-5 factor structure invariance using a sample of nonracialized Black (Nigerian) university students (i.

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The 20-item Toronto Alexithymia Scale (TAS-20) is the most widely used instrument for assessing alexithymia, with more than 25 years of research supporting its reliability and validity. The items that compose this scale were written to operationalize the components of the construct that are based on clinical observations of patients and thought to reflect deficits in the cognitive processing of emotions. The Perth Alexithymia Questionnaire (PAQ) is a recently introduced measure and is based on a theoretical attention-appraisal model of alexithymia.

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Although numerous studies have explored latent profiles using the Five-Factor Model (FFM) of normative personality, no studies have investigated how broad personality traits (i.e., FFM) and pathological personality traits using the alternative model of personality disorder (AMPD) may combine for latent personality profiles.

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Most research on personality disorders (PDs) relies upon self-reported information, commonly collected via standardized self-report inventories or structured interviews. Such data might, for instance, be culled from archival records from applied evaluative contexts or collected as part of dedicated anonymized research studies. Many factors-such as disengagement, distractibility, or motivation to appear in a certain manner-may influence whether self-reported information accurately reflects an examinee's genuine personality characteristics.

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Although evidence-based psychotherapies, such as cognitive behavioral therapy (CBT) and interpersonal psychotherapy (IPT), produce comparable average outcomes, it is plausible that some patients who possess one or more specific characteristics may respond better to one over the other. Addressing this question, researchers have tested the moderating influence of patient characteristics on comparative treatment effects (viz. aptitude-treatment interactions [ATIs]).

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In their review of examination of the self-report Personality Inventory for Diagnostic and Statistical Manual for Mental Disorders, Fifth Edition (DSM-5; PID-5) factor structure and joint factor analysis of this instrument with other self-report measures of personality and psychopathology, Clark and Watson (2022) make argument for a set of modifications to the DSM-5 alternative model of personality disorders (AMPD)-the AMPD-5.1. In this commentary we offer opinion that their proposed modifications to the AMPD are problematic.

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The introduction of the alternative model of personality disorders in the fifth edition of the (American Psychiatric Association, 2013) represented a substantive change in how personality disorders (PDs) are diagnosed. One barrier to its adoption (among several) in clinical practice, however, is a lack of information as to what constitutes an elevated score on the 25 domains and facets that comprise Criterion B. Unique sets of facets can be configured to assess any 1 of 6 PDs retained in the alternative model of personality disorders; each of these facets can in turn be added to create a PD sum score.

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Borderline personality disorder (BPD) and antisocial personality disorder (ASPD) are the two most frequently diagnosed and researched DSM-5 personality disorders, and both are characterized by high levels of trait neuroticism. Fatty acid amide hydrolase (FAAH), an enzyme of the endocannabinoid system (ECS), has been linked to regulation of mood through modulation of anandamide, an endocannabinoid. We hypothesized that prefrontal cortex (PFC) FAAH binding would relate to trait neuroticism in personality disorders.

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Background: The N400 event-related brain potential (ERP) semantic priming effect is thought to reflect activation by meaningful stimuli of related concepts in semantic memory and has been found to be deficient in schizophrenia. We tested the hypothesis that, among individuals at clinical high risk (CHR) for psychosis, N400 semantic priming deficits predict worse symptomatic and functional outcomes after one year.

Methods: We measured N400 semantic priming at baseline in CHR patients (n = 47) and healthy control participants (n = 25) who viewed prime words each followed by a related or unrelated target word, at stimulus-onset asynchronies (SOAs) of 300 or 750 ms.

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Criterion B of the alternative model of personality disorder in the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5), outlines maladaptive trait dimensions that characterize personality disorders. Emerging evidence from bifactor confirmatory factor analyses suggest these traits are related at a higher order level by a general factor of personality disorder (g-PD). Further, emerging evidence points to traits most closely related to borderline personality disorder as underpinnings of g-PD.

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The Personality Inventory for the DSM-5 (PID-5) assesses the five pathological personality trait domains that comprise the descriptive core of the DSM-5 Alternative Model of Personality Disorders (AMPD). The PID-5 five-domain factor structure is aligned with the AMPD and is reported as replicable across samples in the U.S.

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The current study provided a novel investigation of relations among particular types of childhood maltreatment (emotional vs. physical vs. sexual maltreatment), specific cognitive schema themes and the generation of dependent versus independent life events.

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Shortcomings of approaches to classifying psychopathology based on expert consensus have given rise to contemporary efforts to classify psychopathology quantitatively. In this paper, we review progress in achieving a quantitative and empirical classification of psychopathology. A substantial empirical literature indicates that psychopathology is generally more dimensional than categorical.

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Objective: Previous research shows elevated disability in psychotic disorders. However, co-occurring symptomatology has been increasingly highlighted as predictive of clinical outcomes in the psychotic spectrum. The current study investigates how both psychotic and nonpsychotic symptom domains predict functioning across psychotic disorders.

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As part of a broader project to create a comprehensive self-report measure for the Hierarchical Taxonomy of Psychopathology consortium, we developed preliminary scales to assess internalizing symptoms. The item pool was created in four steps: (a) clarifying the range of content to be assessed, (b) identifying target constructs to guide item writing, (c) developing formal definitions for each construct, and (d) writing multiple items for each construct. This yielded 430 items assessing 57 target constructs.

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The 20-Item Toronto Alexithymia Scale (TAS-20) is the most widely used measure to assess the personality construct of alexithymia and is composed of three-factor analytically derived subscales. These subscales measure and represent three critical, theoretically based facets of alexithymia. The subscales are distinct, yet highly interrelated and only as a collective body do they reflect adequately the alexithymia construct.

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Four subtypes of the alexithymia construct have been proposed based on different response patterns to the Cognitive and Affective dimensions of the Bermond-Vorst Alexithymia Questionnaire (BVAQ). Previous studies investigating whether alexithymia subtypes can be statistically estimated have not found complete support for these specific subtypes. These previous studies, however, contained several methodological limitations such as relatively small sample sizes, and considerations of only a limited number of proposed subtypes.

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Background: Antidepressant medication and interpersonal psychotherapy (IPT) are both recommended interventions in depression treatment guidelines based on literature reviews and meta-analyses. However, 'conventional' meta-analyses comparing their efficacy are limited by their reliance on reported study-level information and a narrow focus on depression outcome measures assessed at treatment completion. Individual participant data (IPD) meta-analysis, considered the gold standard in evidence synthesis, can improve the quality of the analyses when compared with conventional meta-analysis.

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Transient expressions of positive psychotic symptoms, referred to as "psychotic-like experiences," can be measured in the general population. With an increase in attention to investigate underlying causes of psychotic-like experiences (PLEs), such as personality traits, we investigated pathological personality traits (i.e.

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