The concept and measurement of fathers’ stimulating play: a review

Fathers' unmodulated prosody in child-directed speech

Mothers and fathers modify prosodic characteristics of child-directed speech relative to adult-directed speech. Evidence suggests that mothers and fathers may differ in how they use child-directed speech as communicative partners. Thus, fathers create communicative challenges during father-child interaction that facilitate the child's adaptation to a wider potential range of interlocutors. In this paper, speech production differences are examined between mothers and fathers in child-directed speech to toddlers as compared to adult-directed speech. Using a longitudinal, large-scale design of audio recordings in naturalistic environments and automatic speech processing techniques, it was found that mothers, but not fathers, increased their fundamental frequency when addressing their toddlers. The results suggest that fathers do not modulate the prosody of their speech in the same way as mothers when communicating with their toddlers. Findings have implications for emotional and communicative practices of fathers compared to mothers and the differential role each plays in child development.

Revisiting the debate on effects of parental power-assertive control in two longitudinal studies: early attachment security as a moderator

Although there is a consensus that harsh, hostile, abusive discipline has uniformly adverse effects on children, scholars continue to debate implications of varying degrees of power assertion commonly used by most parents in daily interactions with young children. Attachment theory can inform this debate, as early attachment organization can serve as a catalyst, or moderator, of future socialization trajectories. Specifically, insecure attachment can amplify, whereas secure attachment can attenuate, detrimental effects of parental power-assertive control. In two community studies of mothers, fathers, and infants, Family Study (FS, N = 102), and Children and Parents Study (CAPS, N = 200), we assessed attachment security in infancy, parental power-assertive control at 4.5 years in FS and at 16 months in CAPS, and child positive orientation to the parent at 10 years in FS and at 3 years in CAPS. In both studies, fathers' power-assertive control undermined children's positive orientation toward the fathers, but only for children with less secure attachment histories in infancy (Attachment Q-Set in FS and Strange Situation Paradigm in CAPS), and not for those with more secure histories. The findings highlight indirect yet powerful, long-term effects of the early parent-child security, and suggest distinct processes in mother- and father-child dyads.

"Crying on the Bus": First Time Fathers' Experiences of Distress on Their Return to Work

There is increasing research interest in the experiences of new fathers taking paternity leave, but less insight into men's experiences of returning to work after the birth of their first baby. For many men in the UK context, this could take place immediately after the birth or after one or two weeks of paternity leave. This paper utilizes data from a UK-based study whilst also drawing on international literature and policy contexts. A constructivist grounded theory method was adopted to generate theory from the data gathered. Twelve new fathers shared their experiences in this study by participating in audio-recorded, semi-structured interviews. This paper focuses on fathers' experiences of negotiating the workplace as part of an overall theoretical framework related to broader transitions to fatherhood and sheds light on the distress, guilt and psychological challenges that the participants experienced when they initially returned to work. Whether fathers did or did not explicitly describe distress at this time, they all described a change in their worker identity, which for some participants led to uncertainty in the workplace. Men returning to work at this time in the postnatal period are vulnerable to experiencing distress. Flexibility and support in the workplace could be protective of their mental health. Finally, policy and practice developments are offered to support men's transitions to fatherhood in the workplace context.

Proximate and Ultimate Mechanisms of Human Father-child Rough-and-tumble Play

The aim of this contribution is to attempt to understand the adaptive functions of father-child rough-and-tumble play (RTP) in humans. We first present a synthesis of the known proximate and ultimate mechanisms of peer-peer RTP in mammals and compare human parent-child RTP with peer-peer RTP. Next, we examine the possible biological adaptive functions of father-child RTP in humans, by comparing paternal behavior in humans versus biparental animal species, in light of the activation relationship theory and the neurobiological basis of fathering. Analysis of analogies reveals that the endocrine profile of fathers is highly variable across species, compared to that of mothers. This can be interpreted as fathers' evolutionary adjustment to specific environmental conditions affecting the care of the young. Given the high unpredictability and risk-taking features of RTP, we conclude that human adult-child RTP appears to have a biological adaptive function, one of 'opening to the world'.

Children's emerging receptive, positive orientation toward their parents in the network of early attachment relationships

Early security plays a major role in inaugurating the child's receptive, positive orientation - a foundation for cooperative parent-child relationships and successful socialization. However, few studies have considered the association between children's attachments with both mothers and fathers and multiple aspects of children's receptive, positive orientation, or compared all four attachment groups (secure, avoidant, resistant, and disorganized). In 192 mother-child and 186 father-child dyads from community families, children's attachment was assessed at 15-17 months in Strange Situation Paradigm. Aspects of receptive, positive orientation toward each parent - positive affect, committed compliance, empathic concern, and restraint in response to parental prohibition - were observed in naturalistic laboratory contexts. Generally, securely attached children were more receptive and positive than insecure, although specific effects depended on the measure, comparison group (avoidant, resistant, disorganized), and the relationship (mother- or father-child). For positive orientation in the father-child dyads, being secure with both parents conferred a modest additional benefit.

Parent-child relationship and child anger proneness in infancy and attachment security at toddler age: a short-term longitudinal study of mother- and father-child dyads

Early parent-child relationship and child negative emotionality have both been studied as contributors to attachment security, but few studies have examined whether negative emotionality can moderate effects of parent-child relationship on security and whether the process is comparable across mother- and father-child dyads and different security measures. In 102 community families, we observed parent-child shared positive affect and infants' anger proneness at 7 months, and attachment security at 15 months, using observer-rated Attachment Q-Set (AQS) and a continuous measure derived from Strange Situation Paradigm (SSP). For mother-child dyads, high shared positive affect and low anger proneness were associated with AQS security. Those effects were qualified by their interaction: Variations in shared positive affect were associated with security only for relatively more anger-prone children.  That effect reflected the diathesis-stress model. For father-child dyads, shared positive affect was associated with security. There were no effects for SSP security with either parent.

Cardiac physiological regulation across early infancy: The roles of infant surgency and parental involvement with mothers and fathers

High baseline respiratory sinus arrhythmia (RSA) and infant temperament are associated with a child's ability to self-regulate, but moderators of this association have not been thoroughly examined in the literature. Parents who are more involved might have more opportunities to interact with and soothe their children. The current study examined whether parental involvement moderated the association between infant temperament and baseline RSA with mothers and fathers across early infancy. Participants included families (n = 91) assessed at 4 and 8 months of age. Infant temperamental surgency and parental involvement were measured via parent-report when infants were 4 months old, and infant baseline RSA was measured at 4 and 8 months of age. Results revealed differences in mother versus father predictors of infant baseline RSA. A significant Infant Surgency X Maternal Play interaction was revealed; infants of mothers who were low involvement increased in their baseline RSA as their surgency increased. A significant main effect of father care was found; infants with highly involved fathers had higher baseline RSA. In conclusion, mothers and fathers may differentially influence their infant's cardiac physiological regulation based on their specific type of involvement.

The Premise and Promise of Activation Parenting for Fathers: A Review and Integration of Extant Literature

Although research on fathers tends to focus on mother-derived conceptualizations of caregiving, such as sensitivity, it has been theorized that fathers play a unique role in opening their children to the world by encouraging exploration and risk-taking. However, extant research on these forms of paternal caregiving is scattered across multiple related but distinct domains, namely rough-and-tumble play, challenging parenting behavior, and the activation relationship. Based on the overlap in theory and operationalizations of these domains, the present review aimed to define and operationalize a new caregiving construct: activation parenting (AP). Fathers who exhibit frequent and high-quality AP behaviors encourage children to take risks, challenge children physically and socioemotionally, and set appropriate limits during stimulating interactions to ensure safety and prevent over-arousal. Using Belsky's (1984) process of parenting model as a foundation, associations between paternal AP and characteristics of the father, his environment, and his child are reviewed, with a focus on early childhood (i.e., ages 0-5 years). The present review found some support for paternal AP occurring more frequently, but not necessarily with higher quality, when fathers had children older than one years old. Unexpectedly, the frequency and quality of paternal AP did not differ much by paternal age or indicators of socioeconomic status, or by child age or gender. In line with underlying theories, higher quality paternal AP in early childhood has been found to be associated with children's self-regulation skills and lower levels of internalizing and externalizing problems. Limitations of the current paternal AP literature are discussed and future directions for research, policy, and clinical work are proposed.

Adrenocortical interdependence in father-infant and mother-infant dyads: Attunement or something more?

Father-infant and mother-infant (one-year-olds) adrenocortical attunement was explored during the Strange Situation Procedure (SSP) among 125 father-infant and 141 mother-infant dyads. Cortisol was assessed at baseline (T1), 20 (T2), and 40 minutes (T3) after the first parent-infant separation. Initial correlations indicated significant associations between father-infant and mother-infant cortisol at each time. Cortisol interdependence was further explored using Actor-Partner Interdependence Models. There was no evidence supporting cortisol interdependence based on within-time residual correlations between parent-infant cortisol, once stability and cross-lagged paths were controlled. Infant cortisol at T2 predicted T3 cortisol for fathers and mothers resulting in a series of follow-up exploratory analyses to examine mediating processes which revealed that infant distress during the SSP predicted infant T2 cortisol, which, in turn, predicted infant negativity during the 15-min mother-infant teaching task that followed the SSP. Among father-infant dyads, infant T2 cortisol predicted infant negativity during father-infant interaction, with infants expressing more negativity having less sensitive fathers. Findings provide little support of parent-infant adrenocortical attunement across either father-infant or mother-infant dyads during the SSP, but preliminary evidence indicates infant distress as a potential mediator. Future research may want to focus on affective and behavioral processes that underlie the concept of parent-infant adrenocortical attunement.

The neural mechanisms and consequences of paternal caregiving

In recent decades, human sociocultural changes have increased the numbers of fathers that are involved in direct caregiving in Western societies. This trend has led to a resurgence of interest in understanding the mechanisms and effects of paternal care. Across the animal kingdom, paternal caregiving has been found to be a highly malleable phenomenon, presenting with great variability among and within species. The emergence of paternal behaviour in a male animal has been shown to be accompanied by substantial neural plasticity and to be shaped by previous and current caregiving experiences, maternal and infant stimuli and ecological conditions. Recent research has allowed us to gain a better understanding of the neural basis of mammalian paternal care, the genomic and circuit-level mechanisms underlying paternal behaviour and the ways in which the subcortical structures that support maternal caregiving have evolved into a global network of parental care. In addition, the behavioural, neural and molecular consequences of paternal caregiving for offspring are becoming increasingly apparent. Future cross-species research on the effects of absence of the father and the transmission of paternal influences across generations may allow research on the neuroscience of fatherhood to impact society at large in a number of important ways.