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Unique Contributions of Maternal Prenatal and Postnatal Emotion Dysregulation on Infant Respiratory Sinus Arrhythmia

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A Correction to this article was published on 06 April 2022

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Abstract

Prenatal intrauterine exposures and postnatal caregiving environments may both shape the development of infant parasympathetic nervous system (PNS) activity. However, the relative contributions of prenatal and postnatal influences on infant respiratory sinus arrhythmia (RSA)–an index of PNS functioning–are relatively unknown. We examined whether prenatal and postnatal maternal emotion dysregulation, a transdiagnostic construct that spans mental health diagnoses, were independently related to infant RSA trajectories during a social stressor, the still-face paradigm. Our sample included 104 mothers and their 7-month-old infants. Maternal emotion dysregulation was measured with the Difficulties in Emotion Regulation Scale during the 3rd trimester of pregnancy and again at a 7-month postpartum laboratory visit. Infant RSA was recorded during the still-face paradigm. Only postnatal maternal emotion dysregulation was associated with infant RSA. Specifically, high postnatal emotion dysregulation was associated with a blunted (i.e., dampened reactivity and recovery) infant RSA response profile. Infant sex did not moderate the associations between maternal emotion dysregulation and infant RSA. Findings suggest that postnatal interventions to promote effective maternal emotion regulation may reduce risk for infants’ dysregulated psychophysiological stress responses.

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Availability of Data and Material

Part of the data (i.e., infant physiological measure) that supports the findings of the study will be available on the National Institute of Mental Health (NIMH) Data Archive (https://nda.nih.gov/edit_collection.html?id=3240). Other parts of the data are available from the corresponding author upon reasonable request.

Code Availability

The code of all multilevel models is available on Open Science Framework (osf.io/j4ye2).

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Acknowledgements

We would like to thank all of the families who generously donated their time to participate in our study. We would also like to thank Mike Varner and Bob Silver for their support of the BABY study and for providing their dedicated OBGYN Research Network staff to help with screening and recruitment. We thank Connie Hammen for her assistance with training and scoring the UCLA Life Stress Interview. We would also like to thank the University of Utah Vice President’s Clinical Translational Research Scholars program for their mentorship and grantsmanship assistance. Last but not the least, we thank Celine Saenz and Sarah Terrell for their hard work on recruitment, coordination, and study management.

Funding

This study was funded by the National Institute of Mental Health R01MH119070 and R21MH109777 (to S.C. and E.C.) and grants from the University of Utah Consortium for Families and Health Research and Interdisciplinary Research Pilot Program.

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Correspondence to Mengyu Miranda Gao.

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Ethics Approval

All study procedures were approved by the Institutional Review Board at the University of Utah (approval number: 00081198 and 00090356). The procedures used in this study adhere to the tenets of the Declaration of Helsinki.

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Participants provided a written informed consent before each time point of the study.

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Participants signed informed consent regarding publishing their data.

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The authors declare no conflict of interests, financial or otherwise.

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The original online version of this article was revised: We noticed now that the [BLINDED FOR REVIEW] section had not been replaced with real links/words. It is important for the readers to access full list of reference and our pre-registration link on OSF.

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Gao, M.M., Kaliush, P.R., Brown, M.A. et al. Unique Contributions of Maternal Prenatal and Postnatal Emotion Dysregulation on Infant Respiratory Sinus Arrhythmia. Res Child Adolesc Psychopathol 50, 1219–1232 (2022). https://doi.org/10.1007/s10802-022-00914-4

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  • DOI: https://doi.org/10.1007/s10802-022-00914-4

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