The moderating role of adrenocortical reactivity in the associations between interparental conflict, emotional reactivity, and school adjustment.

This study tested whether the associations between interparental conflict, children's emotional reactivity, and school adjustment were moderated by children's cortisol reactivity in a sample of young children (N = 243; mean age = 4.6 years at Wave 1; 56% female, 44% male) and their parents. Using a longitudinal, autoregressive design, observational assessments of children's emotional reactivity at Wave 2 mediated the relationship between an observational measure of Wave 1 conflict between parents and teacher's report of children's school adjustment at Wave 3. However, children's cortisol reactivity to parent conflict at Wave 1 moderated the first link, such that emotional reactivity operated as a mediator for children with heightened cortisol reactivity but not children with low cortisol reactivity. Moderation was expressed in a "for better" or "for worse" form hypothesized by biological sensitivity to context theory. Thus, children with high cortisol reactivity experienced greater emotional reactivity than their peers when faced with more destructive conflict but also lower emotional reactivity when exposed to more constructive interparental conflict. Results are discussed as to how they advance emotional security and biological sensitivity to context theories.

Family-level antecedents of children's patterns of reactivity to interparental conflict: Testing the reformulation of emotional security theory.

Guided by emotional security theory, this study examined the family-level antecedents of children's reaction patterns to interparental conflict in a sample of 243 preschool children (M age = 4.60 years; 48% Black; 16% Latinx; 56% girls) and their parents in the Northeastern United States. Behavioral observations of children's responses to interparental conflict over two annual measurement occasions assessed their tendencies to exhibit four patterns of defending against threat: secure (i.e., efficiently address direct threats), mobilizing (i.e., high reactivity to potential threat and social opportunities), dominant (i.e., directly defeat threat), and demobilizing (i.e., reduce salience as a target of hostility). Latent profile analyses of interparental, coparental, and parent characteristics derived from multiple methods at the first wave yielded four profiles corresponding with harmonious, enmeshed, compensatory, and detouring patterns of family-level functioning. Additional analyses revealed that children in harmonious and compensatory family profiles exhibited more secure patterns of reactivity over a 1-year period than children in the enmeshed family profile. In contrast, subsequent mobilizing reactivity was most pronounced for children in the enmeshed family profile. Finally, children in the detouring profile exhibited substantially higher levels of demobilizing reactivity to interparental conflict. Results are discussed in the context of how they inform and refine emotional security theory. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

Beyond destructive and constructive interparental conflict: Children's psychological vulnerability to interparental disorganization.

Guided by models of family unpredictability, this study was designed to identify the distinctive sequelae of disorganized interparental conflict, a dimension of interparental conflict characterized by abrupt, inexplicable changes in parental emotional lability, conflict tactics, and verbalizations. Participants included 208 kindergarten children (M age = 5.74 years; 56% girls), mothers, and their caregiving partners from racially diverse backgrounds (e.g., 44% Black) who participated in a longitudinal study with two annual measurement occasions. At Wave 1, trained observers assessed disorganized interparental conflict. Observational and survey assessments were used to assess several family (i.e., interparental conflict, parenting difficulties, parent psychopathology, family instability) and demographic (i.e., children's gender, household income, parent education) characteristics. Assessments of child functioning at each wave included psychological adjustment (i.e., externalizing and internalizing symptoms, prosocial behavior), social information processing difficulties, and attention to emotion cues. Findings from structural equation modeling analyses indicated disorganized interparental conflict significantly predicted decreases in children's prosocial behavior and increases in their externalizing problems, angry reactivity to social problems, and biased attention to angry and sad cues over a one-year period. Results were significant while controlling for established measures of interparental conflict, parenting difficulties, parent psychopathology, family instability, and demographic characteristics. The findings suggest that disorganized characteristics of interparental conflict may be an important domain of clinical change beyond the established targets of family harshness and adversity. (PsycInfo Database Record (c) 2021 APA, all rights reserved).

Emotional insecurity as a mediator of the moderating role of dopamine genes in the association between interparental conflict and youth externalizing problems.

This study tested whether the association between interparental conflict and adolescent externalizing symptoms was moderated by a polygenic composite indexing low dopamine activity (i.e., 7-repeat allele of DRD4; Val alleles of COMT; 10-repeat variants of DAT1) in a sample of seventh-grade adolescents (Mean age = 13.0 years) and their parents. Using a longitudinal, autoregressive design, observational assessments of interparental conflict at Wave 1 predicted increases in a multi-informant measurement of youth externalizing symptoms 2 years later at Wave 3 only for children who were high on the hypodopaminergic composite. Moderation was expressed in a "for better" or "for worse" form hypothesized by differential susceptibility theory. Thus, children high on the dopaminergic composite experienced more externalizing problems than their peers when faced with more destructive conflicts but also fewer externalizing problems when exposed to more constructive interparental conflicts. Mediated moderation findings indicated that adolescent reports of their emotional insecurity in the interparental relationship partially explained the greater genetic susceptibility experienced by these children. More specifically, the dopamine composite moderated the association between Wave 1 interparental conflict and emotional insecurity 1 year later at Wave 2 in the same "for better" or "for worse" pattern as externalizing symptoms. Adolescent insecurity at Wave 2, in turn, predicted their greater externalizing symptoms 1 year later at Wave 3. Post hoc analyses further revealed that the 7-repeat allele of the dopamine receptor D4 (DRD4) gene was the primary source of plasticity in the polygenic composite. Results are discussed as to how they advance process-oriented Gene x Environment models of emotion regulation.