Insights into child abuse and neglect: Findings from the Minnesota Longitudinal Study of Risk and Adaptation.

The Minnesota Longitudinal Study of Risk and Adaptation (MLSRA) is a landmark prospective, longitudinal study of human development focused on a sample of mothers experiencing poverty and their firstborn children. Although the MLSRA pioneered a number of important topics in the area of social and emotional development, it began with the more specific goal of examining the antecedents of child maltreatment. From that foundation and for more than 40 years, the study has produced a significant body of research on the origins, sequelae, and measurement of childhood abuse and neglect. The principal objectives of this report are to document the early history of the MLSRA and its contributions to the study of child maltreatment and to review and summarize results from the recently updated childhood abuse and neglect coding of the cohort, with particular emphasis on findings related to adult adjustment. While doing so, we highlight key themes and contributions from Dr Dante Cicchetti's body of research and developmental psychopathology perspective to the MLSRA, a project launched during his tenure as a graduate student at the University of Minnesota.

The Combined Contributions of Newborn Stress and Parenting Stress on Toddler Language Development.

OBJECTIVE: To examine the longitudinal associations between newborn neurobehavioral stress signs, maternal parenting stress, and several indices of toddler language development. STUDY DESIGN: Participants include 202 mother-infant dyads (104 girls). We measured stress signs in neonates in the hospital at least 24 hours after birth using the Neonatal Intensive Care Unit Network Neurobehavioral Scale. At 7 months, parenting stress (competence, attachment, and role restriction) was assessed using the Parenting Stress Index. At 18 months, mothers completed the Communicative Development Inventories, which measured toddler gesturing, expressive vocabulary, and receptive vocabulary. Longitudinal path modeling was used to estimate associations between neonatal stress signs, parenting stress, and toddler language, and a model was generated for each language outcome. Child sex, birth weight, and family income were included as covariates. RESULTS: Infants who exhibited greater neurobehavioral stress signs at birth produced significantly fewer social-communicative gestures at 18 months of age. Among infants whose mothers reported low (but not high) levels of parenting stress during the first postnatal year, newborn stress signs were negatively associated with 18-month-olds' receptive vocabulary size. Neither newborn stress signs nor parenting stress were significantly related to toddler expressive vocabulary size. CONCLUSIONS: Our findings uncover a negative association between newborn stress signs and toddler gesturing. Furthermore, our results suggest that caregiver stress and neonatal stress signs interact to predict toddler receptive vocabulary. Taken together, these results demonstrate that some neonates who exhibit increased neurobehavioral stress signs may be at heightened risk for experiencing language difficulties. These children may benefit from additional support in infancy.

The unanticipated side effects of an attachment intervention: Parents ask higher quality questions.

Research suggests foster children are at risk for poor language skills. One intervention, attachment and biobehavioral catch-up (ABC), was shown to successfully improve not only young foster children's attachment to their parents, but also their receptive vocabulary skills (Bernard et al., 2017; Raby et al., 2019). Given that language acquisition is intricately linked to parents' sensitive interactions with their children, we ask whether the ABC intervention also improves the quality of parents' talk addressed to children. We test whether the ABC intervention results in more conversational turns between parents and their children. Crucially, we also look within these conversational turns, assessing the number and types of questions that parents ask children. Results suggest that parents who received the ABC intervention do not have more conversational turns or ask higher numbers of questions, compared to parents who received the control intervention. Rather, parents in the ABC group ask a higher proportion of child-led and restatement questions, and a lower proportion of parent-led and pedagogical questions, compared to the control. Additionally, the higher proportion of child-led questions were related to higher parental sensitivity scores. Together, these results suggest that an intervention originally designed to improve children's socioemotional outcomes had positive benefits for the quality of conversations between parents and children. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Is Attachment and Biobehavioral Catch-up effective for parents with insecure attachment states of mind?

Prior research suggests that attachment-based interventions, including Attachment and Biobehavioral Catch-up (ABC), may be less effective at enhancing parenting quality among parents who self-report having an insecure attachment style. The current study tested whether effects of ABC on parental behavior were moderated by categorical and dimensional measures of attachment obtained via Adult Attachment Interviews with 454 parents who were approximately 34 years old, primarily female, and predominantly White or African American. Parents randomized to ABC exhibited higher sensitivity and positive regard, and lower intrusiveness shortly after the intervention than parents randomized to the control intervention (|ß|s = .10-.27). The effect of ABC on intrusiveness persisted 2 years later. Effects at either timepoint were not significantly moderated by parents' attachment representations.

The predictive validity of the strange situation procedure: Evidence from registered analyses of two landmark longitudinal studies.

Meta-analyses demonstrate that the quality of early attachment is modestly associated with peer social competence (r = .19) and externalizing behavior (r = -.15), but weakly associated with internalizing symptoms (r = -.07) across early development (Groh et al., Child Development Perspectives, 11(1), 70-76, 2017). Nonetheless, these reviews suffer from limitations that undermine confidence in reported estimates, including evidence for publication bias and the lack of comprehensive assessments of outcome measures from longitudinal studies in the literature. Moreover, theoretical claims regarding the specificity of the predictive significance of early attachment variation for socioemotional versus academic outcomes had not been evaluated when the analyses for this report were registered (but see Dagan et al., Child Development, 1-20, 2023; Deneault et al., Developmental Review, 70, 101093, 2023). To address these limitations, we conducted a set of registered analyses to evaluate the predictive validity of infant attachment in two landmark studies of the Strange Situation: the Minnesota Longitudinal Study of Risk and Adaptation (MLSRA) and the NICHD Study of Early Child Care and Youth Development (SECCYD). Across-time composite assessments reflecting teacher report, mother report, and self-reports of each outcome measure were created. Bivariate associations between infant attachment security and socioemotional outcomes in the MLSRA were comparable to, or slightly weaker than, those reported in the recent meta-analyses, whereas those in the SECCYD were weaker for these outcomes. Controlling for four demographic covariates, partial correlation coefficients between infant attachment and all socioemotional outcomes were r ≤ .10 to .15 in both samples. Compositing Strange Situations at ages 12 and 18 months did not substantively alter the predictive validity of the measure in the MLSRA, though a composite measure of three different early attachment measures in the SECCYD did increase predictive validity coefficients. Associations between infant attachment security and academic skills were unexpectedly comparable to (SECCYD) or larger than (MLSRA) those observed with respect to socioemotional outcomes.

Pregnant women's autonomic responses to an infant cry predict young infants' behavioral avoidance during the still-face paradigm.

Research suggests that women's autonomic nervous system responses to infant cries capture processes that affect their parenting behaviors. The aim of this study was to build on prior work by testing whether pregnant women's autonomic responses to an unfamiliar infant crying also predict their infants' emerging regulation abilities. Participants included 97 women in their third trimester of pregnancy, located in the United States. Most participants identified as White/non-Hispanic (48%) or Hispanic (30%), their mean age was approximately 30 years, and the modal family income was $40,000-$79,999. Pregnant women's respiratory sinus arrhythmia (RSA) and skin conductance levels (SCL)-which are thought to capture emotional engagement and behavioral inhibition, respectively-were measured while the women watched a relaxing video and a video of an unfamiliar infant crying. Approximately 7 months later, women and their infants completed the still-face paradigm (SFP). Infants' avoidance and resistance behaviors during the SFP reunions were rated. Pregnant women's RSA and SCL responses to the infant cry video uniquely predicted infants' avoidance (but not resistance) during the SFP. Infants displayed higher levels of avoidance when their mothers exhibited lower levels of RSA reactivity or when their mothers exhibited higher levels of SCL activity in response to the infant cry video. Maternal sensitivity during mother-infant free-play interactions did not mediate the associations between pregnant women's autonomic responses to the cry video and infants' avoidant behavior during the SFP. Discussion focuses on potential mechanisms underlying associations between pregnant women's autonomic responses to infant distress and infants' socioemotional development. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

Examining implications of the developmental timing of maternal trauma for prenatal and newborn outcomes.

Separate literatures have demonstrated that mothers' experiences with trauma during childhood or pregnancy are associated with maternal prenatal health risks, adverse childbirth outcomes, and offspring internalizing and externalizing disorders. These literatures largely align with the intergenerational transmission or fetal programming frameworks, respectively. However, few studies have tested the effects of maternal childhood and prenatal trauma simultaneously on mothers' and infants' health outcomes, and no studies have examined these effects on newborn neurobehavioral outcomes. Thus, in the present study, we examined how the developmental timing of pregnant women's traumatic life experiences associated with their physical health and psychopathology (Aim 1) as well as their newborns' birth and neurodevelopmental outcomes (Aim 2; for pre-registered aims and hypotheses, see https://osf.io/ygnre/?view_only=cbe17d0ac7f24af5a4d3e37e24eebead). One hundred and fifty-two 3rd trimester pregnant women (Mage = 29 years; 17.1% Hispanic/Latina) completed measures of trauma history and psychopathology. Then, 24-48 h after birth, trained clinicians conducted newborn neurobehavioral exams (n = 118 newborns; 52.6% female). Results indicated that lifetime traumatic experiences associated with multiple prenatal maternal health outcomes, including depression, anxiety, emotion dysregulation, and pregnancy complications. Pregnant women's experiences with childhood trauma, but not adulthood or prenatal trauma, predicted higher neurobehavioral attention scores among female newborns. Our discussion highlights the importance of considering the developmental timing of maternal trauma on perinatal outcomes and contextualizes our findings within the intergenerational transmission and fetal programming literatures. DATA AVAILABILITY: Data pertaining to R01MH119070 (MPIs Crowell & Conradt) and that support these findings are uploaded to the NIMH repository.

Dynamics of mother-infant parasympathetic regulation during face-to-face interaction: The role of maternal emotion dysregulation.

The dynamics of parent-infant physiology are essential for understanding how biological substrates of emotion regulation are organized during infancy. Although parent-infant physiological processes are dyadic in nature, research is limited in understanding how one person's physiological responses predict one's own and as well as the other person's responses in the subsequent moment. In this study, we examined mother-infant respiratory sinus arrhythmia (RSA) dynamics during the Still-Face Paradigm (SFP) among 106 mothers (Mage  = 29.54) and their 7-month-old infants (55 males). Given mothers' role in shaping dyadic interactions with their infant, we also tested how mothers' self-reported emotion dysregulation (measured via the Difficulties in Emotion Regulation Scale) associated with these dynamics. Results showed that both mothers' and infants' RSA tended to return to their respective homeostatic points (i.e., exhibited return strength) during each SFP episode, indicating stability in RSA for mother-infant dyads. Significant shifts in mother and infant RSA return strength were observed across SFP episodes, highlighting the role of contextual demands on each individual's physiological dynamics. Mother-infant RSA dynamics varied as a function of maternal self-reported emotion dysregulation. Specifically, RSA levels of infants with more dysregulated mothers had a weaker tendency to return to homeostasis during the Reunion episode and were less affected by their mothers' RSA during the Still-Face and Reunion episodes of the SFP, suggesting a less effective coregulatory influence. Our findings have implications for the intergenerational transmission of emotion dysregulation via mother-infant physiological dynamics.

Exploring the meaning of unresolved loss and trauma in more than 1,000 Adult Attachment Interviews.

Unresolved states of mind regarding experiences of loss/abuse (U/d) are identified through lapses in the monitoring of reasoning, discourse, and behavior surrounding loss/abuse in response to the Adult Attachment Interview. Although the coding system for U/d has been widely used for decades, the individual indicators of unresolved loss/abuse have not been validated independently of the development sample. This study examined the psychometric validity of U/d, using individual participant data from 1,009 parent-child dyads across 13 studies. A latent class analysis showed that subsets of commonly occurring U/d indicators could differentiate interviewees with or without unresolved loss/abuse. Predictive models suggested a psychometric model of U/d consisting of a combination of these common indicators, with disbelief and psychologically confused statements regarding loss being especially important indicators of U/d. This model weakly predicted infant disorganized attachment. Multilevel regression analysis showed no significant association between ratings of unresolved other trauma and infant disorganized attachment, over and above ratings of unresolved loss/abuse. Altogether, these findings suggest that the coding system of U/d may have been overfitted to the initial development sample. Directions for further articulation and optimization of U/d are provided.

Attachment dimensions and cortisol responses during the strange situation among young children adopted internationally.

Children's attachments to their parents may help regulate their hypothalamic-pituitary-adrenal (HPA) axes. Prior research has largely focused on children with relatively consistent and low-risk caregiving histories, resulting in limited knowledge about the associations between attachment quality and HPA axis reactivity among children who have experienced early adversity. This study investigated whether dimensional measures of attachment quality were associated with HPA responses to the Strange Situation Procedure (SSP) among 64 children ages 11-33 months adopted internationally from institutional or foster care. Children who showed high levels of attachment avoidance exhibited a blunted cortisol response during the SSP. Conversely, children who sought proximity and contact with their adoptive parents exhibited an increase in cortisol reactivity during the SSP, followed by a return to baseline levels after the completion of the procedure. This association was independent of the previously reported association between parental insensitivity and blunted cortisol responses in this sample.

Developmental foundations of physiological dynamics among mother-infant dyads: The role of newborn neurobehavior.

This study tested whether newborn attention and arousal provide a foundation for the dynamics of respiratory sinus arrhythmia (RSA) in mother-infant dyads. Participants were 106 mothers (Mage  = 29.54) and their 7-month-old infants (55 males and 58 White and non-Hispanic). Newborn attention and arousal were measured shortly after birth using the NICU Network Neurobehavioral Scale. Higher newborn arousal predicted a slower return of infant RSA to baseline. Additionally, greater newborn attention predicted mothers' slower return to baseline RSA following the still-face paradigm, and this effect only held for mothers whose infants had lower newborn arousal. These findings suggest that newborn neurobehavior, measured within days of birth, may contribute to later mother-infant physiological processes while recovering from stress.

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

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.

Adapting psychophysiological data collection for COVID-19: The "Virtual Assessment" model.

The COVID-19 pandemic has significantly disrupted research activities globally. Researchers need safe and creative procedures to resume data collection, particularly for projects evaluating infant mental health interventions. Remote research is uniquely challenging for psychophysiological data collection, which typically requires close contact between researchers and participants as well as technical equipment frequently located in laboratory settings. In accordance with public health guidance, we adapted procedures and developed novel protocols for a "virtual assessment" in which women and infants provided behavioral and psychophysiological data from their own homes while researchers coordinated remotely. Data collected at virtual visits included video-recorded parent-child interactions and autonomic nervous system data. Adaptations were designed to optimize safety and data quality while minimizing participant burden. In the current paper, we describe these adaptations and present data evaluating their success across two sites in the United States (University of Delaware and University of Utah), focusing specifically on autonomic nervous system data collected during the well-validated Still-Face Paradigm (SFP). We also discuss advantages and challenges of translating traditional lab procedures into the virtual assessment model. Ultimately, we hope that disseminating these procedures will help other researchers resume safe data collection related to infant mental health during the COVID-19 pandemic and beyond.

La pandemia del COVID-19 ha interrumpido significativamente las actividades de investigación globalmente. Los investigadores necesitan procedimientos seguros y creativos para reasumir la recolección de información, particularmente para proyectos con los que se evalúan intervenciones de salud mental infantil. La investigación remota es particularmente desafiante para recoger información psicofisiológica, lo cual típicamente requiere contacto cercano entre investigadores y participantes, así como también equipo técnico frecuentemente localizado en centros de laboratorio. De acuerdo con las directrices de salud pública, adaptamos procedimientos y desarrollamos protocolos novedosos para una "evaluación virtual," en la cual mujeres e infantes aportaron datos de conducta y psicofisiológicos desde sus propias casas mientras que los investigadores coordinaban remotamente. La información recogida en las visitas virtuales incluyó interacciones progenitor-niño grabadas en video e información del sistema nervioso autónomo. Se diseñaron las adaptaciones para optimizar la seguridad y la calidad de la información mientras que se reducía al mínimo la carga que conlleva la participación. En el presente estudio, describimos estas adaptaciones y presentamos información evaluativa del éxito en dos lugares de Estados Unidos (la Universidad de Delaware y la Universidad de Utah), con enfoque específico en la información obtenida acerca del sistema nervioso autónomo durante el ya bien validado Paradigma del Rostro Inmóvil. Discutimos también las ventajas y retos para transferir los procedimientos tradicionales de laboratorio al modelo de evaluación virtual. En última instancia, esperamos que al diseminar estos procedimientos ayudaremos a otros investigadores a reasumir la segura recolección de información relacionada con la salud mental infantil durante la pandemia del COVID-19 y posteriormente.

La pandémie du COVID-19 a perturbé de manière importante les activités de recherche au niveau global. Les chercheurs ont besoin de procédures sûres et créatives pour reprendre la collecte de données, particulièrement pour des projets évaluant des interventions en santé mentale du nourrisson. Les recherches à distance présentent un défi unique pour la collecte de données psychophysiologiques, qui typiquement exige un contact proche entre les chercheurs et les participants ainsi qu'un équipement technique fréquemment situé en contextes de laboratoire. En accord avec les directives de santé publique nous avons adapté les procédures et développés de nouveaux protocoles pour une « évaluation virtuelle ¼ durant laquelle les femmes et les bébés ont présenté des données comportementales et psychophysiologiques depuis leurs propres domiciles alors que les chercheurs coordonnaient le tout à distance. Les données recueillies durant les visites virtuelles ont inclus des interactions parent-enfant enregistrées à la vidéo et des données liées au système nerveux autonome. Les adaptations ont été conçues afin d'optimiser la sécurité et la qualité des données tout en minimisant le fardeau pour les participants. Dans cet article nous décrivons ces adaptations et présentons les données évaluant leur succès au travers de deux sites aux Etats-Unis (University of Delaware et University of Utah), en s'attachant plus spécifiquement aux données sur le système nerveux autonome obtenues durant le Paradigme de Visage Inexpressif, qui est bien validé. Nous discutons également les avantages et des défis qu'il y a à traduire des procédures traditionnelles de laboratoire en un modèle d'évaluation virtuel. Finalement nous espérons que le fait de disséminer ces procédures aidera d'autres chercheurs à reprendre de manière sûre la collecte de données liées à la santé mentale du nourrisson durant la pandémie du COVID-19 et plus loin.

Bringing the laboratory into the home: A protocol for remote biobehavioral data collection in pregnant women with emotion dysregulation and their infants.

Pregnant women struggling with emotion dysregulation may be more likely to engage in a wide range of health risk behaviors. This protocol describes a study on intergenerational transmission of emotion dysregulation from the third trimester of pregnancy to 18 months postpartum. Biobehavioral markers of emotion dysregulation are typically measured in laboratory settings which was prohibited by many universities during the COVID-19 pandemic. We describe how markers of emotion dysregulation (e.g. maternal, fetal, and infant heart rate variability) are collected remotely. We detail how data collection can be augmented to reach diverse populations who may not otherwise participate in laboratory-based research.

The latent structure of the adult attachment interview: Large sample evidence from the collaboration on attachment transmission synthesis.

The Adult Attachment Interview (AAI) is a widely used measure in developmental science that assesses adults' current states of mind regarding early attachment-related experiences with their primary caregivers. The standard system for coding the AAI recommends classifying individuals categorically as having an autonomous, dismissing, preoccupied, or unresolved attachment state of mind. However, previous factor and taxometric analyses suggest that: (a) adults' attachment states of mind are captured by two weakly correlated factors reflecting adults' dismissing and preoccupied states of mind and (b) individual differences on these factors are continuously rather than categorically distributed. The current study revisited these suggestions about the latent structure of AAI scales by leveraging individual participant data from 40 studies (N = 3,218), with a particular focus on the controversial observation from prior factor analytic work that indicators of preoccupied states of mind and indicators of unresolved states of mind about loss and trauma loaded on a common factor. Confirmatory factor analyses indicated that: (a) a 2-factor model with weakly correlated dismissing and preoccupied factors and (b) a 3-factor model that further distinguished unresolved from preoccupied states of mind were both compatible with the data. The preoccupied and unresolved factors in the 3-factor model were highly correlated. Taxometric analyses suggested that individual differences in dismissing, preoccupied, and unresolved states of mind were more consistent with a continuous than a categorical model. The importance of additional tests of predictive validity of the various models is emphasized.

Intervening With Attachment and Biobehavioral Catch-Up to Reduce Behavior Problems Among Children Adopted Internationally: Evidence From a Randomized Controlled Trial.

Children who have been adopted internationally often exhibit persistent behavior problems. The current study assessed the efficacy of the Attachment and Biobehavioral Catch-up intervention (ABC; Dozier & Bernard, 2019) for reducing behavior problems in 122 children adopted internationally. Behavior problems were measured via parent-report using the Brief Infant Toddler Social Emotional Assessment at a pre-intervention visit and after the intervention when children were between 18 and 36 months. Children's behavior problems were also observed using the Disruptive Behavior Diagnostic Observation Schedule (DB-DOS) after the intervention when children were 48 and 60 months. Parents who received ABC reported fewer child behavior problems than parents who received the control intervention immediately after the intervention through 1.5 years post-intervention. Additionally, children whose parents received ABC exhibited fewer behavior problems within the parent context of the DB-DOS when they were 48 months old (2 years post-intervention) than children whose parents received the control intervention. There were no significant intervention effects on children's observed behavior problems within the examiner contexts. These results support the efficacy of ABC in reducing behavior problems among children adopted internationally. Trial registration: ClinicalTrials.gov NCT00816621.

Prenatal maternal transdiagnostic, RDoC-informed predictors of newborn neurobehavior: Differences by sex.

We examined whether Research Domain Criteria (RDoC)-informed measures of prenatal stress predicted newborn neurobehavior and whether these effects differed by newborn sex. Multilevel, prenatal markers of prenatal stress were obtained from 162 pregnant women. Markers of the Negative Valence System included physiological functioning (respiratory sinus arrhythmia [RSA] and electrodermal [EDA] reactivity to a speech task, hair cortisol), self-reported stress (state anxiety, pregnancy-specific anxiety, daily stress, childhood trauma, economic hardship, and family resources), and interviewer-rated stress (episodic stress, chronic stress). Markers of the Arousal/Regulatory System included physiological functioning (baseline RSA, RSA, and EDA responses to infant cries) and self-reported affect intensity, urgency, emotion regulation strategies, and dispositional mindfulness. Newborns' arousal and attention were assessed via the Neonatal Intensive Care Unit (NICU) Network Neurobehavioral Scale. Path analyses showed that high maternal episodic and daily stress, low economic hardship, few emotion regulation strategies, and high baseline RSA predicted female newborns' low attention; maternal mindfulness predicted female newborns' high arousal. As for male newborns, high episodic stress predicted low arousal, and high pregnancy-specific anxiety predicted high attention. Findings suggest that RDoC-informed markers of prenatal stress could aid detection of variance in newborn neurobehavioral outcomes within hours after birth. Implications for intergenerational transmission of risk for psychopathology are discussed.

Increasing secure base script knowledge among parents with Attachment and Biobehavioral Catch-up.

This study evaluated whether Attachment and Biobehavioral Catch-up (ABC), a parenting intervention, altered the attachment representations of parents (average age of 34.2 years) who had been referred to Child Protective Services (CPS) due to risk for child maltreatment when their children were infants. Approximately 7 years after completing the intervention, parents who had been randomized to receive ABC (n = 43) exhibited greater secure base script knowledge than parents who had been randomized to receive a control intervention (n = 51). Low-risk parents (n = 79) exhibited greater secure base script knowledge than CPS-referred parents who had received a control intervention. However, levels of secure base script knowledge did not differ between low-risk parents and CPS-referred parents who had received the ABC intervention. In addition, secure base script knowledge was positively associated with parental sensitivity during interactions with their 8-year-old children among low-risk and CPS-referred parents. Mediational analyses supported the idea that the ABC intervention enhanced parents' sensitivity 7 years later indirectly via increases in parents' secure base script knowledge.

Foster parent responsiveness and young children's diurnal cortisol production.

Foster children are at risk for dysregulated hypothalamic pituitary adrenal (HPA) axis functioning, conferring risk for negative health outcomes. Responsive parenting may support young children's HPA axis regulation; however, few studies have examined the association between responsive parenting and cortisol production among children in foster care. In a sample of 97 foster parent-child dyads, we examined whether variation in foster parent responsiveness was linked to children's waking and bedtime levels of cortisol. Children's saliva samples were collected at wake-up and bedtime for three consecutive days. Foster parent responsiveness, as indicated by parent sensitivity, intrusiveness, and positive regard, was assessed during video-recorded semistructured play interactions between foster parents and children. Foster parent responsiveness significantly predicted children's waking cortisol levels (ß = 0.26, p = .023). Follow-up analyses revealed that foster parent sensitivity uniquely predicted waking cortisol (ß = 0.46, p = .006), over and above other dimensions of parenting, such that children with more sensitive foster parents had higher waking cortisol than children with less sensitive foster parents. The association between foster parent sensitivity and the waking-to-bedtime slope of cortisol across the day was nonsignificant. Findings suggest that sensitive caregiving may support foster children's healthy HPA axis functioning.