Biomedical subjects

Karla Van Leeuwen

Publications and source records attributed to Karla Van Leeuwen.

5 recordsLinked to original sources

PubMed2006

The structure of maladaptive personality traits in childhood: a step toward an integrative developmental perspective for DSM-V.

The present study describes the construction of a taxonomy of trait-related symptoms in childhood, the Dimensional Personality Symptom Item Pool (DIPSI), and examines the replicability of the taxonomy's higher order structure across maternal ratings of referred (N = 205) and nonreferred (N = 242) children and self-ratings of adolescents (N = 453). The DIPSI's 4 higher order factors--that is, Emotional Instability, Disagreeableness, Introversion, and Compulsivity--showed clear correspondence with the dimensions of personality pathology found in adulthood (Dimensional Assessment of Personality Pathology-Basic Questionnaire; W. J. Livesley, 1990; Schedule for Nonadaptive and Adaptive Personality; L. A. Clark, 1993). These 4 factors can be further organized into 2 superfactors, representing Internalizing and Externalizing Traits, demonstrating empirical and conceptual relationships with psychopathology models in childhood and adulthood. The implications for the assessment and conceptualization of early trait pathology are discussed in the context of an integrative developmental perspective on the construction of the Diagnostic and Statistical Manual of Mental Disorders-Fifth Edition.

Adjustment Disorders↗

PubMed2006

Assessing and interpreting personality change and continuity in patients treated for major depression.

Structural, mean- and individual-level, differential, and ipsative personality continuity were examined in 599 patients treated for major depression assigned to 1 of 6 forms of a 6-month pharmaco-psychotherapy program. Covariation among traits from the Five Factor model remained invariant across treatment, and patients described themselves as slightly more extraverted, open to experience, agreeable and conscientious, and substantially more emotional stable after treatment. Trait changes were only to a small extent explained by changes in depression severity. There was evidence for differential, individual-level, and ipsative stability, with stable personality profiles in terms of shape and to a lesser extent in terms of scatter and elevation. Traits remain relatively stable, except for emotional stability, despite the depressive state and the psychopharmacological interventions.

Adolescent↗

PubMed2005

Temperament, personality, and developmental psychopathology as childhood antecedents of personality disorders.

To contribute to the case for a dimensional conceptualization of psychopathology in general and maladaptive personality or personality disorders in particular, the present paper reviews the evidence for a dimensional representation of childhood temperament and personality. The review of temperament and variable-centered as well as person-centered approaches to childhood personality leads us to propose five broadband dimensions that capture individual differences in children and adolescents: extraversion, emotional stability, agreeableness, conscientiousness, and openness/intellect. Our analysis of the CBCL (Achenbach, 1991) and the DIPSI (currently under development at Ghent University), two dimensional models for childhood psychopathology, suggests two common broadband factors, internalizing and externalizing. The relations between the dimensional representation of childhood temperament/personality and psychopathology are documented with data from general population and clinical samples of children and adolescents. The article concludes with a proposal on how the higher-order dimensions emerging from studies of adaptive and maladaptive individual differences in childhood could be integrated in a common dimensional model.

Adolescent↗

PubMed2004

A "little five" lexically based perspective on personality disorder symptoms in adolescence.

Recently, De Clercq and De Fruyt (2003) examined the relation between adaptive and maladaptive personality functioning in adolescence, using adult measures to describe adolescent personality and personality pathology, i.e., that is the NEOPI-R (Costa & McCrae, 1992) and the ADP-IV (Schotte & De Doncker, 1994) respectively. The present study extends this work, administering a lexically based and age-specific measure of adaptive personality, i.e., that is the Hierarchical Personality Inventory for Children (HiPIC; Mervielde & De Fruyt, 1999), to 454 nonclinical adolescents. Results largely replicated across adult FFM versus lexically derived and age-specific measures, although HiPIC domains explained a larger proportion of disorder variance, with Benevolence and Conscientiousness especially demonstrating less descriptive specificity. Lexically derived facets were further helpful to achieve greater disorder-descriptive specificity. Finally, adolescent personality pathology, when operationalized using Axis II criteria, showed more overlap in adolescence than in adults. It is concluded that future studies should focus on age-specific taxonomies and measures to assess personality pathology in adolescence.

Adaptation, Psychological↗

PubMedDate not supplied

Gender differences in developmental pathways on self-evaluation from adolescence into adulthood: the Flanders longitudinal study.

The aim of this study was to look for possible gender differences in self-evaluation in adolescence, young adulthood, and full adulthood. Subjects were interviewed at three stages: in adolescence, 8 years, and 15 years later. Hypotheses were: (a) The connection between self-evaluation in adolescence and in adulthood is stronger in girls than in boys. However, for both boys and girls there is a strong connection between young adulthood and full adulthood ("the self-evaluation-triad" hypothesis); (b) The "schooling" factor has a different effect on the self-evaluation triad for boys and girls. Results showed that different psychosocial developmental pathways apply to boys and girls. Also, working girls with a negative self-evaluation in adolescence were more vulnerable to negative self-evaluation in adulthood.

Adolescent↗