Parental sensitivity, family alliance and infants' vagal tone: Influences of early family interactions on physiological emotion regulation

In this study, we investigated the influence of parental sensitivity and family alliance on infants’ vagal tone, considered as a physiological indicator of emotion regulation. Studies on mother–infant interactions have shown that vagal tone can be influenced by the quality of the interaction, such as interacting with a sensitive mother. To date, no study has investigated the influence of paternal sensitivity or family alliance on infants’ vagal tone. We hypothesized that maternal sensitivity, paternal sensitivity, and family alliance would be associated with infants’ vagal tone during dyadic and triadic interactions. We also explored if family alliance would act as a moderator on the association between parental sensitivity and vagal tone and if the sensitivity of both parents would act as a moderator on the association between family alliance and vagal tone. This study took place in Switzerland and included 82 families with their 3–4-month-old infants. Results showed that maternal sensitivity and family alliance were associated with infants’ vagal tone, but paternal sensitivity was not. We found no significant moderation effect. However, result tendencies suggested that the contribution of paternal sensitivity to infants’ emotion regulation could be influenced by family alliance, whereas maternal sensitivity and family alliance have a unique contribution

Interactive synchrony and infants’ vagal tone as an index of emotion regulation: associations within each mother- and father-infant dyad and across dyads

IntroductionStudies have shown that infants’ emotion regulation capacities are closely linked to the quality of parent-infant interactions. However, these links have been mostly studied in mother-infant dyads and less is known about how the quality of father-infant interactions contributes to the development of emotion regulation during infancy. In this study, we aimed to investigate the links between interactive synchrony (i.e., an index of the quality of parent-infant coordination of interactive behaviors) and infants’ vagal tone (i.e., a physiological index of emotion regulation). To understand the respective contributions of both parents, as well as the interrelations between the functioning of both dyads within a family, we observed mothers and fathers from 84 families interacting with their infants.MethodsSynchrony was assessed by using the CARE-Index; infants’ vagal tone was derived from the analysis of infants’ electrocardiograms recorded during the interactions. Moreover, to take the play’s order into account, we counterbalanced the procedure, so that approximately half of the mothers played first. We specified a first structural equation modeling (SEM) model to investigate the associations between interactive synchrony and the infants’ root mean square of successive differences (RMSSD), an index of vagal regulation, in the two successive parts of the play. We conducted a multigroup analysis in a second SEM model to investigate the associations of the first SEM model in two groups based on the order of interaction.ResultsThe results of the SEM models showed that greater synchrony was related to greater infant RMSSD within mother-infant dyads and across one dyad to the other dyad in the full sample and in the group of fathers who interacted first with the infants. The associations between synchrony and infant vagal tone within father-infant dyads never appeared to be significant, nor did any associations within each dyad and across dyads when mothers interacted first.DiscussionThis study highlights that the links between interactions and infants’ vagal tone are sensitive to family members’ interdependencies and some conditions (the order of interaction)

The interplay between maternal and paternal senses of efficacy moderates the link between perinatal parental stress and family alliance at 3 months

Objective: Both parents may report high levels of stress during the perinatal period with possible negative consequences for parental well-being and child development. Parental sense of efficacy moderates the effect of stress. To date, no studies have assessed links between parental stress and mother-father-infant interactions in terms of family alliance and the extent to which each parent’s sense of efficacy moderates these links. Design: In this study, 65 dual-parent families answered a questionnaire about parental stress between 36 and 38 weeks of pregnancy and at 3 months after birth. Families were also observed while playing with their 3-month-old infant in the Lausanne Trilogue Play, and they completed a questionnaire about parental efficacy. Results: Structural equation modeling analyses showed that higher maternal or paternal postnatal stress has a direct link with higher family alliance and the links between stress and family alliance are moderated by complex interaction effects between maternal and paternal senses of efficacy. Conclusions: This study shows the necessity of considering the interaction between the senses of self-efficacy of both parents as moderators of parenting stress

Parental sensitivity, family alliance and infants’ vagal tone ::influences of early family interactions on physiological emotion regulation

In this study, we investigated the influence of parental sensitivity and family alliance on infants’ vagal tone, considered as a physiological indicator of emotion regulation. Studies on mother–infant interactions have shown that vagal tone can be influenced by the quality of the interaction, such as interacting with a sensitive mother. To date, no study has investigated the influence of paternal sensitivity or family alliance on infants’ vagal tone. We hypothesized that maternal sensitivity, paternal sensitivity, and family alliance would be associated with infants’ vagal tone during dyadic and triadic interactions. We also explored if family alliance would act as a moderator on the association between parental sensitivity and vagal tone and if the sensitivity of both parents would act as a moderator on the association between family alliance and vagal tone. This study took place in Switzerland and included 82 families with their 3–4-month-old infants. Results showed that maternal sensitivity and family alliance were associated with infants’ vagal tone, but paternal sensitivity was not. We found no significant moderation effect. However, result tendencies suggested that the contribution of paternal sensitivity to infants’ emotion regulation could be influenced by family alliance, whereas maternal sensitivity and family alliance have a unique contribution

Interactive synchrony and infants’ vagal tone as an index of emotion regulation ::associations within each mother-and father-infant dyad and across dyads

Introduction: Studies have shown that infants’ emotion regulation capacities are closely linked to the quality of parent-infant interactions. However, these links have been mostly studied in mother-infant dyads and less is known about how the quality of father-infant interactions contributes to the development of emotion regulation during infancy. In this study, we aimed to investigate the links between interactive synchrony (i.e., an index of the quality of parent-infant coordination of interactive behaviors) and infants’ vagal tone (i.e., a physiological index of emotion regulation). To understand the respective contributions of both parents, as well as the interrelations between the functioning of both dyads within a family, we observed mothers and fathers from 84 families interacting with their infants. Methods: Synchrony was assessed by using the CARE-Index; infants’ vagal tone was derived from the analysis of infants’ electrocardiograms recorded during the interactions. Moreover, to take the play’s order into account, we counterbalanced the procedure, so that approximately half of the mothers played first. We specified a first structural equation modeling (SEM) model to investigate the associations between interactive synchrony and the infants’ root mean square of successive differences (RMSSD), an index of vagal regulation, in the two successive parts of the play. We conducted a multigroup analysis in a second SEM model to investigate the associations of the first SEM model in two groups based on the order of interaction. Results: The results of the SEM models showed that greater synchrony was related to greater infant RMSSD within mother-infant dyads and across one dyad to the other dyad in the full sample and in the group of fathers who interacted first with the infants. The associations between synchrony and infant vagal tone within father-infant dyads never appeared to be significant, nor did any associations within each dyad and across dyads when mothers interacted first. Discussion: This study highlights that the links between interactions and infants’ vagal tone are sensitive to family members’ interdependencies and some conditions (the order of interaction)

Father-infant synchrony and infant vagal tone as an index of emotion regulation ::father-infant shared times in Switzerland as moderators

Research has shown that the quality of mother-infant interactions, as measured by mother-infant synchrony, is associated with infants’ vagal tone, a physiological indicator of emotion regulation. However, little is known about the association between the infant’s vagal tone and the quality of father-infant interactions. Existing literature suggests that the greater quantity of time a father spends with the infant, either alone (dyadic time) or with others (social time) may strengthen this association. In this study we investigated the association between father-infant synchrony and infants’ vagal tone in 77 dyads made up of fathers and their 3-month-old infants, considering the moderating roles of dyadic time and social time. Results revealed no direct associations between father-infant synchrony and infants’ vagal tone. Moderation analyses revealed that more social time increases the association between synchrony and vagal tone. This result indicates a potential influence of family interactive processes