Cardiac vagal tone (VT) was studied as a resilience factor in children prenatally exposed to cocaine and nonexposed controls (n= 550). A cumulative risk index was derived and used to classify children as high versus low risk. VT was measured during mildly stressful observations at 1 and 36 months of age. Children were classified as having consistently high, consistently low, or fluctuating VT. Risk and VT interacted to predict adaptive behaviors. For high-risk children, low VT was related to higher ratings of adaptive behaviors. This finding suggests that regulatory functioning, as indexed by VT, may be a protective factor in prenatal CE.
Prenatal cocaine exposure
Cardiorespiratory function and resilience
Sheinkopf, SJ., LaGasse, LL., Lester, BM., Liu, J., Seifer, R., Bauer, CR., ... Das, A. (2006). Prenatal cocaine exposure: Cardiorespiratory function and resilience. In Annals of the New York Academy of Sciences, Volume 1094 Issue: Resilience in Children (pp. 354-358). Boston, MA: Blackwell Publishing. https://doi.org/10.1196/annals.1376.049