Self-reported autonomic symptoms linking childhood maltreatment to relationship outcomes

Childhood neglect and abuse are a source of chronic stress associated with disruptions to bodily stress response systems and emotional regulation. These experiences are linked to relationship problems and challenges in forming and maintaining secure adult relationships. In two studies, we investigated links between childhood maltreatment, self-reported autonomic nervous system (ANS) symptoms, and relationship outcomes. Study 1 examined 135 therapy clients and found those seeking therapy for relationship problems indicated significantly higher self-reported ANS symptoms compared to those seeking therapy for other reasons. Childhood maltreatment in therapy clients was also significantly associated with increased self-reported ANS symptoms. Study 2 surveyed 523 adults, revealing significant associations childhood maltreatment severity, adult attachment insecurity, and lower relationship quality. Results were consistent with a significant indirect effect for the association between childhood maltreatment and attachment insecurity via self-reported ANS symptoms. To rule out an alternative model, we also tested a reversed-directionality model which was unsupported. Together, these findings suggest that self-reported ANS symptoms are associated with both childhood maltreatment and adult relationship outcomes, including relationship problems severe enough to prompt therapy-seeking behavior and diminished relationship quality. This is consistent with an allostatic load framework linking chronic early adversity to long-term physiological and psychosocial functioning. (200 Words)