The effects of Toxic Early Childhood Experiences on Depression according to Young Schema Model: A Scoping Review.

BACKGROUND: Young Schema Model (YSM) emphasizes Toxic Early Childhood Experiences (TECE) as vulnerability factors to depression. However, the lack of consensus on how to define and measure TECE is likely to have led to inconsistent findings in current literature. This review maps supported and unsupported pathways to depression and measures used. METHODS: A scoping review was conducted in accordance with the Joanna Briggs Institute protocol to identify primary research studies that examined developmental and maintenance pathways to depression within the YSM framework. 2463 articles were identified with 49 primary research studies selected for inclusion. As a subset of the overall review, this paper focuses on the 14 studies that examined effects of TECE on depression in context of YSM. RESULTS: The studies used 11 different measures to examine the role of TECE in depression. Effects of maltreatment (i.e., physical abuse, emotional abuse, emotional neglect,) and perceived parenting (i.e., low care, high rejection, high overprotection and/or control, maladaptive parenting styles) on depression are well supported. Effects of sexual abuse and physical neglect on depression are currently inconclusive. CONCLUSION: In conclusion, findings revealed the inconsistent definition and measurement of TECE (with 11 different measures) in current literature. Findings support the effects of physical abuse, emotional abuse, emotional neglect, low care, high rejection, high overprotection and/or control, and maladaptive parenting styles on depression. Limitations of existing studies include researchers' inconsistent definition and measurement of TECE, under-examined TECE sub-constructs, possible moderating relationships, predominant cross-sectional design, and homogeneous sampling. Limitations of the scoping review include its small number of studies and the absence of evaluation of the measures used. Nevertheless, this review represents the first step in the systematic examination of the empirical basis of YSM and is an important contribution to depression treatment and innovation.

The Effects of Temperament on Depression According to the Schema Model: A Scoping Review.

Background: Recent studies have shown that not every depressed patient responds to Cognitive Behavioral Therapy, and some of those who do relapse upon termination. Due to its dual focus on the past and present, Schema Model (SM) represents a promising alternative model to understand depression. However, studies examining SM often operationalize the same construct differently, resulting in inconsistent evidence of change. There is no known review clarifying (1) how best to assess schema constructs; and (2) the relevant pathways to depression, without which, the empirical basis for SM cannot be examined. Methods: A scoping review was conducted in accordance to PRISMA guidelines to map evidence of the relationship between constructs of SM and depression, and measures used to assess the constructs. 2463 articles were identified with 49 primary research studies included. This paper is a subset of the scoping review and focuses on the five studies examining effects of temperament on depression. Results: Two models were used to operationalize temperament: The Five Factor Model (FFM) and the Psychobiological Model of Personality (PBM). The variables of neuroticism and harm avoidance were positively associated with depressive symptoms while self-directedness and cooperativeness were negative associated with depressive symptoms. Conclusion: The FFM is more suited to operationalize temperament in studies of SM and depression due to its theoretical compatibility with SM, established psychometric properties of its measures, and widespread use among studies of SM. Out of the five factors in the FFM, only neuroticism exerts direct and indirect effects on depression. These findings are limited by homogeneous sampling, hence future research studies should consider extending it to adult clinical samples. Nevertheless, this review represents a first step in the systematic examination of the empirical basis of SM and a contribution to treatment innovation and practice for depression.