Although it is recognised that autism spectrum disorder (ASD) and personality disorders (PDs) have a variety of factors in common, the exact nature of the relationship between ASD and the PDs remains unclear. The overlapping symptom profiles and complexities in developmental trajectories in ASD and PDs can lead to diagnostic uncertainty and to…

We examined how bullying victimization across childhood and adolescence was associated with BPD symptoms in emerging adulthood. Participants were drawn from the McMaster Teen Study, representing a community sample. A three-class solution of bullying victimization trajectories was selected from a semi-parametric group-based trajectory analysis…

Objectives: Non-adherence to medication is common in the adult ADHD clinical group. The goal of this pre-registered study was to examine whether the DSM-5 Alternative Model of Personality Disorder (AMPD), generality personality dysfunction (LPFS-BF 2.0) or maladaptive personality traits (PID-5), can predict time to premature discontinuation of…

Female Phenotype Theory (FPT) suggests that autistic women often present with less obvious social impairments than autistic men. We examined the possibility of an exaggerated female phenotype among undiagnosed but probably autistic women. In two nationwide online surveys, we compared self-reported social functioning and mental health between…

The Perfectionism Social Disconnection Model (PSDM) and the Existential Model of Perfectionism and Depressive Symptoms (EMPDS) are promising models of perfectionism and psychopathology. However, research examining suicide ideation within the PSDM is scarce, and no research has examined suicide ideation as an outcome in the EMPDS. Moreover, tests…

Divergent thinking, the ability to generate multiple ideas from different perspectives, is considered a central component of the creative thinking process. While context, personality traits, and cognitive control abilities have individually been shown to have large effects on divergent thinking, their interrelationship is yet to be elucidated. In…

Individual differences in identity development are commonly captured by identity statuses, representing combinations of high and/or low scores on identity exploration and commitment processes. Although identity impairment is considered a potential diagnostic criterion of all personality disorders (PDs) in Section III of DSM-5, studies that relate…

The Alternative DSM-5 Model for Personality Disorders (AMPD) consists of level of personality functioning (Criterion A) and maladaptive personality traits (Criterion B). The brief scale versions of these are understudied, while often being used by clinicians and researchers. In this study, we wanted to investigate the overlap and predictive…

Background: Identifying specific mechanisms of risk can help better tailor parenting interventions to different forms of maternal psychopathology. Borderline personality disorder (BPD) symptoms interfere with mentalization and emotion regulation capacities; thus, maternal BPD symptoms may uniquely impact aspects of parenting that draw on these…

Borderline personality disorder is a severe disorder with distinct features which might be early identified in adolescence. Adverse experiences in childhood have been established as a risk factor for developing borderline features, and self-compassion has been proposed as a protective factor. This study aimed to test the mediation role of the…

Diagnostic criteria for autism are relatively vague, and may lead to over and underdiagnosis when applied without clinical expertise. Indeed, autism is best reliably identified by experienced clinicians who take into account qualitative aspects of the condition. When assessing for autism in women, little guidance exists to support clinicians…

A psychosocial approach to predicting self-injurious behavior (SIB) may allow for more accurate predictions and enhance intervention for individuals who engage in SIB. We examined psychosocial predictors of SIB within and between two populations: individuals with traits of borderline personality disorder (BPD; N = 60) and college students (N =…

Multi-exceptional children often have deficits in auditory, visual, or sensory processing. As few psychologists have training in modalities, these deficits may be misdiagnosed as AD/HD, Nonverbal Learning Disorder, Autism, Dyslexia, or a host of personality disorders. This article describes the symptoms of these processing deficits and offers…

An emerging literature base suggests that symptoms of oppositional defiant disorder (ODD) persist beyond adolescence and are associated with unique psychosocial impairment for adult populations. The purpose of this study is to examine the clinical characteristics of ODD symptoms in a young adult population. Three-hundred and five young adult…

The study aimed to investigate the correlations between psychological symptoms in high-achieving students with performance-oriented assessment, parental psychological control, parental achievement pressure, perfectionism, and academic expectation stress. The study group consisted of 1134 science high school students (658 females [57.1%], 486 males…