Neural correlates of inhibitory control in the context of infant cry and paternal postpartum mental health.

BACKGROUND: Inhibitory control, a form of self-regulation, may support sensitive parenting, but has been understudied in new fathers despite their pronounced risk for stress and mental health challenges. METHODS: This study probed the neural correlates of inhibitory control and its associations to first-time fathers' postpartum mental health, focusing on depressive symptoms, state anxiety, and perceived stress. Six months after their child's birth, 38 fathers self-reported on their mood, anxiety, and stress, and performed a Go/No-Go fMRI task while listening to three sets of sounds (infant cry, pink noise, and silence). RESULTS: Fathers' behavioral inhibition accuracy was consistent across the sound conditions, but their patterns of neural activation varied. Compared to the pink noise condition, fathers showed heightened engagement in prefrontal regulatory regions when self-regulating during the infant cry and silent conditions. When examining correct trials only, results in visual motor area and primary somatosensory cortex emerged only for infant cry and not for pink noise and silence. Moreover, fathers reporting higher levels of postpartum depression, state anxiety, and perceived stress showed greater activation in prefrontal regions when inhibiting during infant cry or silence. CONCLUSION: This study is the first to underscore the complex interplay between the neural mechanisms related to inhibitory control and postpartum mental health and stress across varied auditory context, laying the groundwork for future research.

Social contributions to meaning in life: the role of romantic relationship quality, parenting, and gender.

Introduction: The present study tests the association between romantic relationship quality and number of children on meaning in life (i.e., sense of purpose, coherence, and significance) and considers interactions between these constructs and gender. Methods: A survey was conducted approximately one year into the pandemic among 473 individuals in the United States. Results: Models demonstrated that relationship quality and number of children are positively associated with meaning, though relationship quality was more strongly related to meaning for men than women. We showed that for women there was an equally positive link between relationship quality and meaning regardless of number of children. However, for men, the positive association between relationship quality and meaning was strongest for those with more than one child, decreased in magnitude for those with one child, and was no longer significant for men with more than one child. Discussion: These findings provide empirical evidence that social relationships benefit meaning in life and underscore the complexity of these associations. Results have implications for theoretical perspectives on meaning in life, as well as for policies that encourage family wellbeing.

Prenatal prolactin predicts postnatal parenting attitudes and brain structure remodeling in first-time fathers.

Despite the important contributions that fathers make to parenting, the neurobiological underpinnings of men's adaptation to parenthood are still not well understood. The current study focuses on prolactin, a hormone that has been extensively linked with reproduction, lactation, and parental behavior in mothers. There is preliminary evidence that prolactin may also reflect the transition to sensitive fatherhood. We sampled prolactin in 91 first-time expectant fathers who participated in a laboratory visit along with their pregnant partners. Fathers' prolactin levels were correlated with their partners' prolactin levels. Men's prolactin levels during their partner's pregnancy were associated with their self-reported antenatal bonding to the unborn infant. Prenatal prolactin levels in fathers also predicted more positive attitudes toward fatherhood at three months postpartum, including lower parenting stress, greater enjoyment of the infant, and a more attunement-oriented parenting style. Within a smaller sample of 32 men who participated in MRI scanning before and after their child's birth, prenatal prolactin also predicted greater reductions in grey matter volume in the left posterior cingulate, left insula, and left nucleus accumbens. In conclusion, men's prenatal prolactin may reflect their perceptions of fatherhood and changes to their perinatal brain structure.

Fathers' subjective childbirth stress predicts depressive symptoms at six months postpartum.

BACKGROUND: Childbirth is a seminal experience in parents' lives. However, little research has investigated the link between fathers' birth experiences and their postpartum mental health. We hypothesized that a more subjectively stressful birth will predict greater self-reported depressive symptoms in fathers at six months postpartum. We also investigated the association between mode of delivery and paternal subjective stress. METHODS: Seventy-seven heterosexual fathers expecting their first child and cohabiting with their pregnant partners participated in the study. Depressive symptoms were assessed in pregnancy and again at six months postpartum. Subjective birth stress was measured within the first few days of the birth, and birth charts were collected to examine mode of delivery. RESULTS: Fathers' ratings of subjective birth stress significantly predicted postpartum depressive symptoms at six months postpartum. Subjective birth stress ratings varied significantly for fathers whose partners delivered via emergency cesarean section compared to those whose partners gave birth via both medicated and the unmedicated vaginal delivery. LIMITATIONS: The study was limited by its small community (non-clinical) sample, which was restricted to heterosexual, cohabitating couples. Additionally, births were mostly uncomplicated and only 14 mothers underwent emergency cesarean section. CONCLUSION: These findings highlight that the days immediately following childbirth are a window of opportunity for early intervention in new fathers at risk for postpartum depression.