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Laurence Claes

Laurence Claes
KU Leuven | ku leuven · Faculty of Psychology and Educational Sciences

PhD
Professor Clinical Psychology

About

361
Publications
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10,925
Citations
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October 1995 - present
KU Leuven
Position
  • Professor (Full)

Publications

Publications (361)
Article
Full-text available
Background This study compared the effect of imagery rescripting (ImRs) of early autobiographical memories to ImRs of intrusive images and a no task control condition on eating disorder (ED) related core beliefs and ED symptoms in individuals at risk of developing an eating disorder. We qualitatively explored the content of ImRs scripts. Method Pa...
Article
Full-text available
Many students have experienced the death of a loved one, which increases their risk of grief and mental health problems. Formal and social support can contribute to better coping skills and personal growth in bereaved students. The purpose of this study was to examine the support that students received or wanted to receive and its relation to stude...
Article
Full-text available
This study aimed to assess the characteristics and content of intrusive images in patients with eating disorders, and test the relations between intrusive images, core beliefs and autobiographical memories. As an exploratory aim, patients with anorexia nervosa, bulimia nervosa and binge eating disorders were compared on the level of dissociation as...
Article
Full-text available
In Section III of the Diagnostic and Statistical Manual of Mental Disorders – fifth edition (DSM-5), an Alternative Model for Personality Disorders (AMPD) is proposed, including a criterion for personality functioning impairment (Criterion A) to assess severity of personality pathology. The present study examined the structure, reliability, and con...
Article
Experiencing the death of a loved one can have a substantial negative impact on the grief and mental health of students. However, the bereavement can also lead to personal growth. We investigated the association between personal growth and support, grief, and distress. Bereaved students (N = 666) at Flemish universities and colleges (Belgium) compl...
Article
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Event centrality is defined as the extent to which a memory of a traumatic event forms a reference point for people’s identity and attribution of meaning to other experiences in their life. Event centrality is typically measured with the Centrality of Event Scale (CES; Berntsen & Rubin, 2006 ). The present study’s first aim was to investigate the u...
Article
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Temperament and personality traits are important factors underlying the vulnerability for both the initiation and continuation of addictive behaviors. We investigated the influence of reactive and regulative temperament and their interaction in relation to clinical symptomatology and personality disorders (PDs) in a sample of 841 inpatients (68.1%...
Article
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Purpose The aims of this study were to (1) investigate the effect of hydrodilatation in frozen shoulder patients on objective indices of shoulder functionality and subjective outcomes of pain, mobility, kinesiophobia, depression, and anxiety, and (2) progress knowledge about the reciprocal temporal relationship between psychological parameters at b...
Article
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In the present study, we investigated the relationship between friendship quality (dimensions) and non-suicidal self-injury (NSSI) as well as the moderating role of gender and age in this relationship. The sample consisted of 463 children and adolescents (50.10% female, age range: 9-17 years). Friendship quality and NSSI were measured using the Fri...
Presentation
Objectives. Individuals develop a narrative identity through constructing and internalizing an evolving life story composed of significant autobiographical memories. The ability to narrate these memories in a coherent manner has been related to psychological well-being, identity functioning, and personality pathology. Previous studies have particul...
Article
Introduction This study investigated the link between trauma and self-harming behaviors in South African high school students, and examined the mediating role of identity formation. Traumatic experiences have been commonly associated with self-harming behaviors in adolescents. However, research addressing this association in non-Western countries i...
Article
Full-text available
Psychological mechanisms play a crucial role in explaining weight gain. Aim of the present study was to identify subtypes in youngsters with obesity in line with these mechanisms. Defining homogeneous clusters within this heterogeneous group provides relevant information for personalized treatments. Data were collected in N = 572 participants (51%...
Article
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Although it has been postulated that eating disorders (EDs) and obesity form part of a broad spectrum of eating- and weight-related disorders, this has not yet been tested empirically. In the present study, we investigated interindividual differences in sensitivity to punishment, sensitivity to reward, and effortful control along the ED/obesity spe...
Article
The detrimental impact of sociocultural pressures on adolescents’ body image has been widely established. However, it remains unclear why or for whom such pressures lead to increased appearance ideals internalization and appearance comparison. This cross-sectional study investigated moderating and indirect effects of identity confusion/synthesis in...
Article
Full-text available
Background Although non-suicidal self-injury (NSSI) is an issue of major concern to colleges worldwide, we lack detailed information about the epidemiology of NSSI among college students. The objectives of this study were to present the first cross-national data on the prevalence of NSSI and NSSI disorder among first-year college students and its a...
Presentation
Identity difficulties have been associated with various psychiatric conditions and are considered a central issue in personality pathology. Following the Alternative Model for Personality Disorders forwarded in Section III of DSM-5, measures of self- and interpersonal functioning have been developed. Although these measures were intended to be sepa...
Article
Full-text available
Introduction: Adolescence is the most critical life period for the development of eating disorder (ED) symptomatology. Although problems in identity functioning and emotion dysregulation have been proven important risk and maintaining factors of ED symptomatology, they have never been integrated in a longitudinal study. Methods: The present study i...
Article
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Background and Aims In the present study, we investigated differences in obsessive–compulsive (OC) symptoms in patients with an eating disorder (ED) with or without recent/lifetime impulsive non‐suicidal self‐injury (NSSI). We included 429 female inpatients with an ED, of whom 31.9% engaged in recent impulsive NSSI and 56.4% in lifetime impulsive N...
Article
Fear of weight gain is a cardinal feature of eating disorders, including Anorexia Nervosa (AN). This fear motivates behaviors aimed at avoiding weight gain, such as restricting food intake. Of note, avoidance in AN is not confined to food-related items but extends to intense emotional states. Despite the presence of several forms of excessive avoid...
Article
Full-text available
Introduction One in three adolescents frequently consume unhealthy snacks, which is associated with negative developmental outcomes. To date, it remains unclear how intrapersonal factors account for food choices in adolescents. Guided by the dual-pathway model, the current study aimed to: (1) examine the joint contribution of inhibitory control and...
Article
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Research on the validity of the behavioral inhibition system/behavioral approach system (BIS/BAS) scales focused on adolescent, student and adult populations. This study is the first to examine the psychometric properties of the BIS/BAS scales in a community (n = 368) and a clinical sample (n = 160) of older adults. Exploratory structural equation...
Poster
Full-text available
In 2013, DSM-5 urged for further research on non-suicidal self-injury (NSSI) and defined NSSI disorder (NSSI-D) for the first time separate from borderline personality disorder (BPD). However, research on the comorbidity between NSSI-D and BPD symptoms is still scarce, especially in adolescent populations. The current study selected 347 adolescents...
Article
Full-text available
We report on two individuals presenting for treatment as part of everyday clinical practice, comparing their pathological personality traits through the lens of the ICD-11 trait qualifiers and the DSM-5 Section III personality trait model. We compare higher order pathological personality domains and lower order pathological personality trait facets...
Article
Full-text available
Section III of the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) includes an alternative model for diagnosing personality disorders (PDs). This model highlights identity impairment as a potential criterion of all PDs, which has stimulated researchers to characterize identity functioning across PD presentations....
Article
Full-text available
Individuals develop a narrative identity through constructing and internalizing an evolving life story composed of significant autobiographical memories. The ability to narrate these memories in a coherent manner has been related to well-being, identity functioning, and personality pathology. Previous studies have particularly focused on coherence...
Article
Full-text available
Background Proponents of clinical case formulations argue that the causes and mechanisms contributing to and maintaining a patient's problems should be analysed and integrated into a case conceptualization, on which treatment planning ought to be based. Empirical evidence shows that an individualized treatment based on a case formulation is at leas...
Article
Full-text available
Introduction: Research on identity development has primarily studied over-time trends in identity status change and exploration and commitment processes among late adolescents and emerging adults. Identity development in early and mid-adolescents has generally been overlooked. Hence, little is known about how a sense of identity synthesis and confu...
Article
Full-text available
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 i...
Article
Full-text available
The present study investigated the (co-)occurrence of non-suicidal self-injury (NSSI) and pathological buying (PB) and their associations with reactive/regulative temperament in a sample of female patients with eating disorders (ED) and in a sample of community adults. Our samples consisted of 254 community adults (48.8% female) and 60 female patie...
Article
Full-text available
Purpose of review: The current report aims to summarize recent advances about the relationship between non-suicidal self-injury (NSSI) and eating disordered (ED) behaviors and highlights meaningful directions for future research. Recent findings: While there is solid evidence indicating a robust cross-sectional association between NSSI and ED be...
Article
Full-text available
Non-suicidal self-injury (NSSI) is defined as the intentional destruction of one’s own body without an intent to die (e.g., self-cutting). On the other hand, indirect forms of self-injury refer to behaviors in which people harm themselves in an indirect way (e.g., substance use). Existing literature suggests that a negative parent–child relationshi...
Article
Full-text available
In 2013, DSM-5 urged for further research on non-suicidal self-injury (NSSI) and defined NSSI disorder (NSSI-D) for the first time separate from borderline personality disorder (BPD). However, research on the comorbidity between NSSI-D and BPD symptoms is still scarce, especially in adolescent populations. The current study selected 347 adolescents...
Poster
Full-text available
Eating disorder (ED) patients show alarmingly high prevalence rates of Non-Suicidal Self-Injury (NSSI). Adolescents seem to be particularly at risk, as EDs and NSSI both have their onset in mid-adolescence. It has been suggested that personality could be a transdiagnostic mechanism underlying both EDs and NSSI. However, little attention has been gi...
Article
Full-text available
Background Although recruiting newborns is ethically challenging, clinical trials remain essential to improve neonatal care. There is a lack of empirical data on the parental perspectives following participation of their neonate in a clinical trial, especially at long term. The objective of this study is to assess experiences and emotions of parent...
Article
In the DSM-5 Section III Alternative Model for Personality Disorders (AMPD), the severity of personality pathology (criterion A) and the presence of pathological personality trait domains and facets (criterion B) are assessed independently. Recent studies have challenged this assumption of independence but the interplay between criterion A and crit...
Article
Introduction: While identity problems and materialistic value endorsement have been described as predisposing factors for buying-shopping disorder (BSD) in the literature, little empirical data are available on the role of socially undesirable personality features that may contribute to financial misconduct and manipulative interpersonal behaviors...
Poster
Full-text available
Vrouwelijke patiënten met een eetstoornis (ES) rapporteren een van de hoogste prevalentiecijfers van nietsuïcidaal zelfverwondend gedrag (ZVG). Temperament en karakter zou als transdiagnostisch mechanisme deze sterke comorbiditeit kunnen verklaren, maar onderzoek focuste voornamelijk op niet-klinische en/of volwassen steekproeven. Toch is de adoles...
Article
Full-text available
Background Data on the long-term effects of prenatal exposure to maternal cancer and its treatment on child development are scarce. Methods In a multicenter cohort study, the neurologic and cardiac outcomes of 6-year-old children born to women diagnosed with cancer during pregnancy were compared with the outcome of children born after an uncomplic...
Article
Full-text available
Obsessions- recurrent unwanted intrusive thoughts -are one of the two pillars of the Obsessive-Compulsive Disorder (OCD). Although OCD has been reported across many different cultures, research on these cultural variations is hampered by the lack of cross-culturally sound instruments to assess intrusive thoughts. The aim of the current study is to...
Article
Full-text available
Identity difficulties have been associated with various psychiatric conditions and are considered a central issue in personality pathology. Following the Alternative Model for Personality Disorders, measures of self- and interpersonal functioning have been developed. Although these measures were intended to be separate ratings of self-other deficit...
Article
Full-text available
Objective: Eating disorder symptomatology generally develops during adolescence and emerging adulthood. Previous research has focused on the role of identity formation or body image in the development of eating disorder symptomatology, but integrative work is lacking. For this reason, the present cross-sectional study examined the mediating role o...
Article
Full-text available
Introduction: The Reinforcement Sensitivity Theory of Personality Questionnaire (RST-PQ) has its roots in the revised reinforcement sensitivity theory of personality. Objectives: This study investigated the reliability and validity of the Dutch translation of the RST-PQ and proposed a brief version. Methods: A sample of 603 Belgian and Dutch adults...
Article
Confinement during the COVID-19 pandemic is expected to have a serious and complex impact on the mental health of patients with an eating disorder (ED) and of patients with obesity. The present manuscript has the following aims: (1) to analyse the psychometric properties of the COVID Isolation Eating Scale (CIES), (2) to explore changes that occurr...
Article
Buying-shopping disorder (BSD) is considered a behavioral addiction that is characterized by poorly controlled spending of money for consumer goods in unnecessary quantities, beyond budget and without necessarily utilizing them for their intended purposes. Little is known about the role of emotional attachment to the purchased products in BSD. Give...
Article
The aim of the present study was to compare different features of Non-Suicidal Self-Injury (NSSI) in India and Belgium. We also explored whether the strength of the association between NSSI and disturbances in identity formation—a risk factor that can increase vulnerability to NSSI—was similar in young adults from India and Belgium. Data regarding...
Article
Full-text available
This manuscript is an accompanying resource of the original research article entitled “Child development at 6 years after maternal cancer diagnosis and treatment during pregnancy” and present data that compare the outcome of 6-year-old-children born to women diagnosed with cancer during pregnancy (with or without treatment during pregnancy) (study...
Article
Background Nonsuicidal self-injury (NSSI) is being increasingly identified as an important emerging mental health issue in the West. Yet, NSSI has not been adequately studied in clinical and nonclinical contexts in countries like India. Aim The aim of this study was to compare different features of NSSI between clinical and nonclinical samples in...
Article
Full-text available
Introduction: The DSM-5 Alternative Model of Personality Disorders (AMPD) and the ICD-11 classification of personality disorders (PD) are largely commensurate and, when combined, they delineate 6 trait domains: negative affectivity, detachment, antagonism/dissociality, disinhibition, anankastia, and psychoticism. Objective: The present study eva...
Article
Full-text available
Eating disorder (ED) patients show alarmingly high prevalence rates of Non-Suicidal Self-Injury (NSSI). Adolescents seem to be particularly at risk, as EDs and NSSI both have their onset in mid-adolescence. It has been suggested that personality could be a transdiagnostic mechanism underlying both EDs and NSSI. However, little attention has been gi...
Preprint
Full-text available
Introduction: The DSM-5 Alternative Model of Personality Disorders (AMPD) and the ICD-11 Classification of Personality Disorders (PD) are largely commensurate, and when combined, they delineate six trait domains: Negative Affectivity, Detachment, Antagonism/Dissociality, Disinhibition, Anankastia, and Psychoticism. Objective: The present study eval...
Article
Full-text available
Introduction: Although research over the past decade has resulted in significantly increased knowledge about distal risk factors for non-suicidal self-injury (NSSI), little is known about short-term (proximal) factors that predict NSSI thoughts and behaviors. Drawing on contemporaneous theories of NSSI, as well as the concept of ideation-to-action...
Article
Full-text available
Effortful control (EC) or self-regulation refers to the ability to regulate behavior, emotion, and cognition. It has been identified as a contributor to both adaptive and adverse outcomes in children, adolescents, and adults and this across many domains. As such, it could be considered as a transdiagnostic dimension underlying internalizing (e.g.,...
Article
Full-text available
Eating disorder symptomatology is highly prevalent in adolescence and is regarded one of the most important precursors of clinical eating disorders. The present longitudinal study examined the development of eating disorder symptomatology in adolescents over two years. At Time 1,528 high school students filled out self-report questionnaires (50.5%...
Article
Background: Binge eating and purging behaviors (BPB) are common among college students, but evidence is scant on prevalence and associations of BPB with mental health problems and objective academic performance. This study aims to investigate: (a) 12-month prevalence of BPB among college first-year students, (b) comorbidity patterns of BPB with va...
Article
Full-text available
Affective variability is a defining feature of borderline personality disorder (BPD). We hypothesize that patients with BPD who score higher on self-criticism and/or dependency-patients with a relative emphasis on self-definition and interpersonal relatedness, respectively-are characterized by more affective variability in positive and negative emo...
Article
Nonsuicidal self-injury (NSSI) is a complex behavior that serves many functions and may be motivated by several factors. Although previously limited to the context of personality disorders, consideration of how general personality traits might be related to NSSI warrants examination. Our aims were to investigate whether clusters based upon the Big...