A Randomized Controlled Trial to Improve Biobehavioral Regulation Among High-Adversity Mothers and Young Children

Adverse childhood experiences (ACEs) are significant risk factors for psychopathology across the lifespan - risks that extend to the next generation, likely transmitted through both biological and behavioral pathways. Biobehavioral self-regulation and parenting are key candidates for transmission and potential points of intervention. However, nearly all intervention research takes a one-generation approach, measuring outcomes in the individual adult or child in treatment. Additionally, very little research has examined biomarkers of self-regulation in parents or children following treatment, and no known research has examined these processes in parents and young children simultaneously across treatment to explore bidirectional effects. There is a critical need to specify targets of two-generation interventions among high-adversity families to decrease intergenerational transmission of mental illness. The objective of this RCT is to determine whether Mom Power, an evidence-based two generation intervention for mothers with histories of trauma, enhances physiological and behavioral self-regulation in mothers and young children, testing mechanisms and examining bidirectional effects. The central hypothesis is that the intervention will shift behavioral and physiological (Respiratory Sinus Arrhythmia) self-regulation in mothers, children, and dyads to mitigate psychopathology risk. Three specific aims are proposed: 1) Examine intervention effects on children's biobehavioral self-regulation and psychopathology; 2) Examine intervention effects on mothers' biobehavioral self-regulation, psychopathology, and parenting behavior; and 3) Examine intergenerational change processes, including shifts in dyadic physiological and behavioral synchrony as well as bidirectional influences between mother and child self-regulation.