The link between childhood abuse and development of social problems and gastrointestinal disorders is well documented. However, some children exposed to abuse go on to lead relatively undisturbed lives, while others are totally devastated. This analysis will seek to understand whether risk and resilience to traumatic experiences may have an evolutionary foundation by using a framework provided by Polyvagal Theory, which outlines the biological link between neural circuits that regulate body states including gastrointestinal functions (and disorders of other subdiaphragmatic organs) and the regulation of social engagement behaviors (Porges, 2001; 2007; 2011). Within this framework, the function of neural systems that regulate body state during the perinatal period may determine individual differences in the long term consequences of severe childhood stressors and traumatic experiences. Thus, the goal of the proposed analyses is to examine whether perinatal variables, related to visceral regulation, will contribute to the risk for gastrointestinal disorders and social problems following childhood abuse.