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Parasympathetic substrates of interactive repair differ in maltreating and nonmaltreating dyads

When mothers repair more negative moments in mother-child interaction, it is protective for children's stress physiology, regardless of maltreatment status.  However, when mothers perform fewer of these repairs, non-maltreated children show the expected physiological arousal indicating a response to challenge, whereas maltreated children show physiological patterns that indicates disengagement (Lunkenheimer, Busuito, Brown, Panlilio, & Skowron, 2019).