Family nurture intervention increases term age forebrain EEG activity: A multicenter replication trial.

OBJECTIVE: This trial (RCT-2) sought to replicate the EEG findings of a randomized controlled trial of Family Nurture Intervention in the NICU (FNI-NICU) (RCT-1) comparing infants receiving standard care (SC) with infants receiving SC plus FNI . METHODS: RCT-2 (NCT02710474) was conducted at two NICUs. Subjects were randomly assigned to receive SC or FNI during their NICU stay. The primary outcome was EEG power in the frontal polar region at 39-41 weeks gestational age (GA). Sixty preterm infants (26-34 weeks GA; 33 SC, 27 FNI) were assessed. FNI-NICU consisted of repeated calming sessions (∼4 times/week) facilitated by Nurture Specialists during which mothers engaged in emotional expression during clothed or skin-to-skin holding, vocal soothing, and eye contact. EEGs were collected from 128 leads. EEG power was computed using Fast Fourier Transforms. RESULTS: RCT-2 replicated RCT-1 results; FNI-NICU led to significantly increased frontal polar power at frequencies > 12 Hz. Effects were spatially more widespread than in RCT-1, with substantial effect sizes (∼0.50) in frontal and parietal regions. CONCLUSIONS: RCT-2 results provide further evidence that FNI-NICU increases term age brain activity. SIGNIFICANCE: FNI-NICU is designed to facilitate autonomic emotional connection and coregulation between mothers and infants in the NICU resulting in profound effects on early brain development.

Preterm infant heart rate is lowered after Family Nurture Intervention in the NICU: Evidence in support of autonomic conditioning.

BACKGROUND: Cardiac complications after premature birth are associated with negative long-term consequences to health. The Family Nurture Intervention (FNI) has been designed to support mother-infant parasympathetic calming sessions in the neonatal intensive care unit (NICU). FNI has shown neurodevelopmental and autonomic benefit across infant development. AIMS: We tested the hypothesis that heart rate (HR) will decrease after FNI over the course of the NICU stay, compared to matched controls. STUDY DESIGN: We used a case-matched design. The intervention included on average four ~1-hour facilitated mother-infant 'calming' sessions per week. We collected 24/7 real time heart rate data from a central monitoring system and analyzed data from two time-periods. SUBJECTS: The intervention group comprised 37 infants born ~30 weeks gestational age (GA) in a level IV NICU, treated with FNI. From the same NICU and time-period, we created a contemporaneous comparison group of 32 infants who were case-matched to each intervention infant for sex, age-at-birth, singleton or twin status, month of admission and length of stay. OUTCOME MEASURES: Using generalized estimating equation (GEE) modeling, we analyzed 24/7 HR data during a 1-hour period between 4:30 and 5:30 am each day in the NICU, when all infants were least disturbed. Using repeated measures ANOVA, we analyzed 24/7 HR data during a 6-week period starting 1 week prior to the start of FNI and ending 5 weeks after start. RESULTS: GEE modeling of the 1-hour data from all subjects showed significant lower HR in the FNI group, compared with controls. ANOVA modeling on a subset of subjects over the five-week period showed that FNI infant HR decreased in a dose-response manner relative to SC HR. CONCLUSION: This study suggests FNI may condition lower infant HR in a dose-response manner during the NICU stay.

The Welch Emotional Connection Screen: Adapting observational methods to pediatric primary care via resident training.

The Welch Emotional Connection Screen (WECS) is a novel instrument that is a brief, practicable, evidenced-based observational screening tool for assessing relationship health between parent and child. The WECS requires observing 2-3 min of face-to-face interactions between parent and child, without toys, prompts, paradigms or technology. Here, we describe a translational project from the coding lab to the primary care provider via a residency training program conducted with 50 residents during a 30-day developmental and behavioral pediatrics medical resident education rotation. The aims of this study were to evaluate the efficacy of WECS pediatric resident training: 1) to improve residents' accuracy in recognizing the dyadic behaviors of emotional connection (EC) via WECS training; and 2) to improve residents' attitudes, self-efficacy, and perceived professional norms (ASPPN) pertaining to Early Relational Health in Pediatrics. Results indicate that using a rapid prototyping approach to training, residents improved in their identification of dyads showing low to midrange levels of emotional connection. As well, resident attitudes about the importance of relationship health in pediatrics and their self-efficacy in identifying emotional connection improved significantly after this brief resident training.

Family nurture intervention in the NICU increases autonomic regulation in mothers and children at 4-5 years of age: Follow-up results from a randomized controlled trial.

BACKGROUND: Maturation of multiple neurobehavioral systems, including autonomic regulation, is altered by preterm birth. The purpose of this study was to determine the long-term effects of Family Nurture Intervention (FNI) in the NICU on autonomic regulation of preterm infants and their mothers. METHOD: A subset of infants and mothers (48% of infants, 51% of mothers) randomly assigned to either standard are (SC), or SC plus the FNI in the NICU in a prior RCT (ClincalTrials.gov; NCT01439269) returned for follow-up assessments when the children were 4 to 5 years corrected age (CA). ECGs were collected for 10 minutes in mothers and their children while children were in their mothers' laps. Heart rate, standard deviation for heart rate, respiratory sinus arrhythmia (RSA)-an index of parasympathetic regulation, and a measure of vagal efficiency were quantified. RESULTS: Both children and mothers in the FNI group had significantly greater levels of RSA compared to the SC group (child: mean difference = 0.60, 95% CI 0.17 to 1.03, p = 0.008; mother: mean difference = 0.64, 95% CI 0.07 to 1.21, p = 0.031). In addition, RSA increased more rapidly in FNI children between infancy and the 4 to 5-year follow-up time point (SC = +3.11±0.16 loge msec2, +3.67±0.19 loge msec2 for FNI, p<0.05). These results show that the rate of increase in RSA from infancy to childhood is more rapid in FNI subjects. CONCLUSION: Although these preliminary follow-up results are based on approximately half of subjects originally enrolled in the RCT, they suggest that FNI-NICU led to healthier autonomic regulation in both mother and child, when measured during a brief face-to-face socioemotional interaction. A Pavlovian autonomic co-conditioning mechanism may underly these findings that can be exploited therapeutically.

Investigation of a developmental pathway from infant anger reactivity to childhood inhibitory control and ADHD symptoms: interactive effects of early maternal caregiving.

BACKGROUND: ADHD is a neurodevelopmental disorder with a complex pathogenesis. Individual differences in temperamental reactivity - in particular, anger reactivity - are predictive of ADHD. The goal of this study was to examine the moderating (maternal caregiving behaviors; MCB) and mediating (inhibitory control) variables of reactivity using a 9-year multimethod prospective longitudinal design. METHODS: Participants included 291 children (135 male; 156 female) who participated in a larger study of temperament and social-emotional development. Anger reactivity was assessed by observation of facial anger during an arm restraint task, and MCB were observed during a series of semi-structured mother-infant tasks, both at 9 months of age. Inhibitory control was assessed by performance on a go/no-go task at 5 years of age. ADHD symptoms were assessed by parent and teacher report questionnaires at 7 and 9 years, respectively. RESULTS: Anger reactivity and poor inhibitory control were predictive of later ADHD symptoms. Results supported a moderated mediation model, in which the indirect effects of anger reactivity on ADHD symptoms through inhibitory control were conditional on quality of early MCB. Inhibitory control mediated the effect of anger reactivity on ADHD symptoms, but only among children exposed to lower-quality MCB. CONCLUSIONS: Infant anger reactivity exerts a direct effect on later ADHD from infancy, suggesting anger reactivity as a very early indicator of ADHD risk. Higher-quality caregiving did not buffer against the direct risk of anger reactivity on ADHD but did buffer against the indirect risk by reducing the negative effect of anger reactivity on inhibitory control. Thus, in the developmental pathway from anger reactivity to ADHD, more sensitive, less intrusive parenting supports the development of protective mechanisms (i.e. inhibitory control) to remediate ADHD risk.

Validation study showed that ratings on the Welch Emotional Connection Screen at infant age six months are associated with child behavioural problems at age three years.

AIM: The emotional connection between mothers and infants born preterm has been associated with positive behaviour. The aim of this study was to examine the longitudinal association between emotional connection at six months of age and behavioural problems at three years. METHODS: This study was carried out by the University of North Texas, USA and comprised 49 mothers and infants from a longitudinal investigation of family interaction and infant development conducted in 1994-1997. Face-to-face interaction and toy-based play were videotaped and coded at six months of age using the Welch Emotional Connection Screen (WECS), a brief screening tool for relational health. When the children were three years of age, the mothers reported on child behavioural problems. RESULTS: The children from dyads that were rated as emotionally connected at six months of age had fewer externalising and internalising behavioural problems at the age of three. No links were found between emotional connection during toy-based play at six months and later child behavioural problems. CONCLUSION: We showed that when the WECS was used at six months of age it was a promising and valid relational screening tool for infants at risk of adverse behavioural outcomes at the age of three.

Infant temperament reactivity and early maternal caregiving: independent and interactive links to later childhood attention-deficit/hyperactivity disorder symptoms.

BACKGROUND: Attention-deficit/hyperactivity disorder (ADHD) is a neurodevelopmental disorder with origins early in life. There is growing evidence that individual differences in temperament reactivity are predictive of ADHD symptoms, yet little is known about the relations between temperament reactivity in early infancy and later ADHD symptoms or the combined effect of reactivity with early environmental factors on ADHD symptom development. Using a 9-year prospective longitudinal design, this study tested the independent and interactive contributions of infant reactivity and maternal caregiving behaviors (MCB) on parent- and teacher-reported childhood ADHD symptoms. METHODS: Participants included 291 children (135 male; 156 female) who participated in a larger study of temperament and social-emotional development. Reactivity was assessed by behavioral observation of negative affect, positive affect, and motor activity during novel stimuli presentations at 4 months of age. MCB were observed during a series of semistructured mother-infant tasks at 9 months of age. Finally, ADHD symptoms were assessed by parent- and teacher-report questionnaires at 7 and 9 years, respectively. RESULTS: Reactivity was predictive of ADHD symptoms, but results were sex specific. For boys, infant motor activity was positively predictive of later ADHD symptoms, but only at lower quality MCB. For girls, infant positive affect was positively predictive of later ADHD symptoms at lower quality MCB, and-unexpectedly-infant positive affect and motor activity were negatively predictive of later ADHD symptoms at higher quality MCB. CONCLUSIONS: These results point to early parenting as a moderating factor to mitigate temperament-related risk for later ADHD, suggesting this as a potential intervention target to mitigate risk for ADHD among reactive infants.

The practical utility of the Welch Emotional Connection Screen for rating parent-infant relational health.

Emotional Connection (EC) measured by the Welch Emotional Connection Screen (WECS) was related to the Parent-Infant Interaction Rating System (PIIRS), a 5-point adaptation of the rating system developed for the National Institute of Child Health and Human Development Study of Early Child Care and Youth Development (e.g., NICHD Early Child Care Research Network, 1999, Developmental Psychology, 35, 1399). Parent-infant dyads (n = 49 mothers; 43 fathers) were videotaped during face-to-face interaction at infant age 6 months; interactions were coded with both the WECS and PIIRS. At age 3, mothers completed the Child Behavior Checklist. WECS ratings of EC were associated with PIIRS rating items for both mother-infant and father-infant dyads. Mother-infant EC related positively to maternal sensitivity and positive regard for child, child positive mood and sustained attention, and dyadic mutuality, and negatively with maternal intrusiveness. Father-infant EC related positively to fathers' positive regard for child, child positive mood and sustained attention, and dyadic mutuality. Mother-infant EC predicted child behavior problems at age 3 better than mother-infant PIIRS ratings of dyadic mutuality. With fathers, neither EC nor dyadic mutuality ratings predicted mother-reported child behavior problems. Findings highlight the practical utility of the WECS for identifying potentially at-risk dyads and supporting early relational health.

The Welch Emotional Connection Screen: validation of a brief mother-infant relational health screen.

AIM: The Welch Emotional Connection Screen (WECS), assesses mother-infant Emotional Connection in clinical settings. It includes: Attraction, Vocal Communication, Facial Communication, Sensitivity/Reciprocity and clinical decision of Emotional Connection (yes/no). We tested concurrent and construct validity of the WECS and associations with behavioural and physiological measures in preterm infants. METHODS: Videos from 76 mothers-infants (gestational age 36 weeks) during an in-NICU caregiving paradigm were coded for maternal caregiving behaviour. Videos of mothers-infants were also obtained at 4 months during 10 minutes of face-to-face play (coded with WECS and for maternal positivity and infant social engagement) and the still-face paradigm (coded for infant behavioural approach towards mother; infant electrocardiogram acquired in vivo). RESULTS: WECS maternal scores were positively associated with maternal sensitivity and quality of vocal contact at 36 weeks (caregiving) and maternal positivity at 4 months (face-to-face). WECS infant scores positively correlated with infant social engagement and maternal positivity during face-to-face interactions at 4 months. Infants from emotionally not connected dyads (vs. emotionally connected dyads) displayed autonomic dysregulation and less approach-seeking behaviour towards mother during interactive/play sessions of the still-face paradigm. CONCLUSION: This preliminary evidence supports the WECS as a valid screen for rating mother-preterm infant emotional connection associated with healthier infant biobehavioural stress responding.

Early Caregiving and Human Biobehavioral Development: A Comparative Physiology Approach.

A large and growing body of evidence demonstrates associations between quality of the early caregiving environment and risk for stress-related illness across the lifespan. The recent research examining associations between early caregiving environments and subsequent development is reviewed, with particular attention to early programming and subsequent malleability of systems underlying stress responsivity. A developmental comparative physiology model is suggested; one in which postnatal programming and phenotypic plasticity act in concert as mechanisms underlying the persisting effects of early care environments for biobehavioral outcomes.

Depression and anxiety symptoms of mothers of preterm infants are decreased at 4 months corrected age with Family Nurture Intervention in the NICU.

Preterm delivery can precipitate maternal psychological morbidities. Family Nurture Intervention (FNI) was designed to minimize these by facilitating the emotional connection between mother and infant, beginning early in the infant's neonatal intensive care unit (NICU) stay. We examined depression and anxiety symptoms of mothers of preterm infants at 4 months infant corrected age (CA). One hundred fifteen mothers who delivered between 26 and 34 weeks gestational age were randomized to receive standard care (SC) or standard care plus FNI. Mothers' self-reported depressive symptoms (Center for Epidemiologic Studies Depression Scale: CES-D) and state anxiety (Spielberger State-Trait Anxiety Inventory: STAI) symptoms were assessed at enrollment, near to term age, and 4 months (CA). At 4 months CA, mean CES-D and STAI scores were significantly lower in FNI mothers compared to SC mothers. Effectiveness of FNI can only be evaluated as an integrated intervention strategy as it was not possible to control all aspects of FNI activities. Although there was considerable loss to follow-up, analyses suggest that resulting biases could have masked rather than inflated the measured effect size for depressive symptoms. FNI may be a feasible and practicable way to diminish the impact of premature delivery on maternal depressive and anxiety symptoms.

Family Nurture Intervention in the Neonatal Intensive Care Unit improves social-relatedness, attention, and neurodevelopment of preterm infants at 18 months in a randomized controlled trial.

BACKGROUND: Preterm infants are at high risk for adverse neurodevelopmental and behavioral outcomes. Family Nurture Intervention (FNI) in the Neonatal Intensive Care Unit (NICU) is designed to counteract adverse effects of separation of mothers and their preterm infants. Here, we evaluate effects of FNI on neurobehavioral outcomes. METHODS: Data were collected at 18 months corrected age from preterm infants. Infants were assigned at birth to FNI or standard care (SC). Bayley Scales of Infant Development III (Bayley-III) were assessed for 76 infants (SC, n = 31; FNI, n = 45); the Child Behavior Checklist (CBCL) for 57 infants (SC, n = 31; FNI, n = 26); and the Modified Checklist for Autism in Toddlers (M-CHAT) was obtained for 59 infants (SC, n = 33; FNI, n = 26). RESULTS: Family Nurture Intervention significantly improved Bayley-III cognitive (p = .039) and language (p = .008) scores for infants whose scores were greater than 85. FNI infants had fewer attention problems on the CBCL (p < .02). FNI improved total M-CHAT scores (p < .02). Seventy-six percent of SC infants failed at least one of the M-CHAT items, compared to 27% of FNI infants (p < .001). In addition, 36% of SC infants versus 0% of FNI infants failed at least one social-relatedness M-CHAT item (p < .001). CONCLUSIONS: Family Nurture Intervention is the first NICU intervention to show significant improvements in preterm infants across multiple domains of neurodevelopment, social-relatedness, and attention problems. These gains suggest that an intervention that facilitates emotional interactions between mothers and infants in the NICU may be key to altering developmental trajectories of preterm infants.

Family nurture intervention improves the quality of maternal caregiving in the neonatal intensive care unit: evidence from a randomized controlled trial.

OBJECTIVE: This study assessed the impact of Family Nurture Intervention (FNI) on the quality of maternal caregiving behavior (MCB) while in the neonatal intensive care unit (NICU). FNI is a randomized controlled trial conducted in a high-acuity NICU to facilitate an emotional connection between mothers and their premature infants. FNI begins shortly after birth, continues until discharge, and involves mother/infant calming sessions that include scent cloth exchange, vocal soothing and emotion expression, eye contact, skin-to-skin and clothed holding, and family-based support sessions. METHODS: Maternal caregiving behavior was coded during a single holding and feeding session (∼30 min) in the NICU before discharge at approximately 36 weeks gestational age (GA). Sixty-five mothers and their premature infants (34 male, 31 female; 26-34 wk GA) were included in these analyses (FNI, n = 35; standard care [SC], n = 30). RESULTS: Relative to mothers in the SC condition, those in the FNI group showed significantly higher quality MCB, which remained significant when controlling for birth order, twin status, maternal depression, and maternal anxiety. CONCLUSION: This is the first study to demonstrate that in-unit MCB can be enhanced by a hospital-based intervention. FNI provides a new rationale for integrating nurture-based interventions into standard NICU care.

Attention biases to threat link behavioral inhibition to social withdrawal over time in very young children.

Behaviorally inhibited children display a temperamental profile characterized by social withdrawal and anxious behaviors. Previous research, focused largely on adolescents, suggests that attention biases to threat may sustain high levels of behavioral inhibition (BI) over time, helping link early temperament to social outcomes. However, no prior studies examine the association between attention bias and BI before adolescence. The current study examined the interrelations among BI, attention biases to threat, and social withdrawal already manifest in early childhood. Children (N=187, 83 Male, M (age)=61.96 months) were characterized for BI in toddlerhood (24 & 36 months). At 5 years, they completed an attention bias task and concurrent social withdrawal was measured. As expected, BI in toddlerhood predicted high levels of social withdrawal in early childhood. However, this relation was moderated by attention bias. The BI-withdrawal association was only evident for children who displayed an attention bias toward threat. The data provide further support for models associating attention with socioemotional development and the later emergence of clinical anxiety.