The mediating role of early maladaptive schemas in the relationship between early childhood trauma and alexithymia

Gene-Environment Interactions in Irrational Beliefs: The Roles of Childhood Adversity and Multiple Candidate Genes

Cognitive behavioral therapy is based on the view that maladaptive thinking is the causal mechanism of mental disorders. While this view is supported by extensive evidence, very limited work has addressed the factors that contribute to the development of maladaptive thinking. The present study aimed to uncover interactions between childhood maltreatment and multiple genetic differences in irrational beliefs. Childhood maltreatment and irrational beliefs were assessed using multiple self-report instruments in a sample of healthy volunteers (N = 452). Eighteen single-nucleotide polymorphisms were genotyped in six candidate genes related to neurotransmitter function (COMT; SLC6A4; OXTR), neurotrophic factors (BDNF), and the hypothalamic-pituitary-adrenal axis (NR3C1; CRHR1). Gene-environment interactions (G×E) were first explored in models that employed one measure of childhood maltreatment and one measure of irrational beliefs. These effects were then followed up in models in which either the childhood maltreatment measure, the irrational belief measure, or both were substituted by parallel measures. Consistent results across models indicated that childhood maltreatment was positively associated with irrational beliefs, and these relations were significantly influenced by COMT rs165774 and OXTR rs53576. These results remain preliminary until independent replication, but they represent the best available evidence to date on G×E in a fundamental mechanism of psychopathology.

Early maladaptive schemas, emotion regulation difficulties and alexithymia: A systematic review and meta-analysis

BACKGROUND

Emotion regulation is an integral part of the schema therapy model. The aim of this systematic review and meta-analysis was to synthesize the evidence on the associations between early maladaptive schemas (EMSs), difficulties with emotion regulation and alexithymia.

METHOD

PsycINFO, PubMed and CINAHL Complete databases were searched on 28 May 2022 and 3 February 2023 in compliance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses. Included studies were in English, in peer-reviewed journals and reported on the association between one or more of the 18 EMSs or five schema domains and emotion regulation difficulties or alexithymia. Methodological quality was assessed using the Appraisal Tool for Cross-Sectional Studies. Meta-analyses were conducted to examine difficulties with emotion regulation and alexithymia as correlates of each EMS and domain.

RESULTS

A total of 19 studies published between 2008 and 2022 were included (Pooled N = 5957). Difficulties with emotion regulation were positively correlated with all 18 EMSs (range: entitlement r(7) = .28, 95% CI [.13, .42] to negativity pessimism r(5) = .53, 95% CI [.23, .74]) and schema domains (range: impaired limits r(5) = .34, 95% CI [.08, .56] to disconnection rejection r(5) = .44, 95% CI [.33, .73]). Alexithymia was positively correlated with the other-directedness domain (r(2) = .40, 95% CI [.09, .64]) and 16 of the 18 EMSs (range: unrelenting standards r(5) = .21, 95% CI [.12, .28] to emotional inhibition r(5) = .50, 95% CI [.34, .63]).

CONCLUSIONS

The findings suggested that almost all 18 EMSs are implicated in emotion regulation difficulties and alexithymia, particularly those relating to unmet needs for attachment and autonomy.

Turkish Adaptation of the Dusseldorf Illustrated Schema Questionnaire for Children: Psychometric Properties and Relationship with Childhood Difficulties

Dusseldorf Illustrated Schema Questionnaire for Children (DISC) measures early maladaptive schemas (EMS) in childhood. EMS are emotional and cognitive rules and patterns formed in childhood and adolescence because of unmet emotional needs which are maintained throughout life and negatively affect one’s potential. The first aim of the current study is to adapt DISC to the Turkish language and examine its psychometric properties to facilitate preventive intervention during early childhood. The second aim of the study is to investigate the relationship between schemas and childhood difficulties. The sample consisted of 771 (419 females, 352 males) children of first graders (8-year-old) to twelfth graders (14-year-old) from 54 of the 81 cities in Turkey. Cronbach’s α value for the total of 36 items was calculated as .89 and α values for subscales ranged between .42 and .83. The test–retest reliability coefficient of the total of the scale was .79 at 1 month and subscales’ test–retest values ranged between .31 and .91. Confirmatory factor analysis showed a good fit for the purported 18-factor model of the original DISC in the Turkish version within a sample of children from diverse socio-economic and cultural backgrounds from Turkey. The Turkish version of the DISC indicated a reliable and valid instrument to assess maladaptive schemas in children.