Related Experiment Video
Updated: Aug 7, 2026

Measuring Cardiac Autonomic Nervous System (ANS) Activity in Toddlers - Resting and Developmental Challenges
Published on: February 25, 2016
Improvements in Negative Parenting Mediate Changes in Children's Autonomic Responding Following a Preschool
Ziv Bell1, Tiffany Shader1, Carolyn Webster-Stratton2
1The Ohio State University.
Abstract:
Abnormal patterns of sympathetic- and parasympathetic- linked cardiac activity and reactivity are observed among externalizing children, and mark deficiencies in central nervous system regulation of behavior and emotion. Although changes in these biomarkers have been observed following treatment, mechanisms remain unexplored. We used MEMORE-a new approach to analyzing intervening variable effects-to evaluate improvements in parenting as mediators of changes in SNS- and PNS-linked cardiac activity and reactivity among 99 preschoolers with attention-deficit hyperactivity disorder who were treated using an empirically supported intervention. Decreases in negative parenting (criticism, negative commands, physical intrusions) were associated with increases in resting RSA and PEP reactivity to incentives from pre- to post-intervention. Increases in positive parenting were not associated with changes in autonomic function. These findings suggest socially-induced plasticity in peripheral biomarkers of behavior and emotion regulation, and underscore the importance of reducing aversive interactions between parents and children when treating externalizing behavior.
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