Mother–Toddler Cortisol Synchrony Moderates Risk of Early Internalizing Symptoms

Cortisol synchrony is the degree to which mother–toddler cortisol levels are mutually regulated within a dyad. Synchrony's impact on toddler development is not well understood, so this study investigated how synchronous cortisol levels (reactivity and total concentration) in mother–toddler dyads moderate the association between risk factors (i.e., maternal worry, toddler inhibition) and early internalizing symptoms. Seventy mothers and their 2‐year‐old toddlers provided interpretable saliva samples. Behavioral observations were made to assess the toddler's temperament at age 2, and mothers reported on their toddler's internalizing symptoms when toddlers were 2 and 3 years old. Results suggest that mother–toddler synchrony in total cortisol concentration moderates the relation between risk factors and internalizing symptoms. Specifically, toddler inhibition and maternal worry were less associated with concurrent toddler internalizing symptoms when dyads demonstrated greater cortisol synchrony in total concentration. Further, synchrony in total cortisol levels marginally moderated the association between toddler inhibition and future internalizing symptoms, such that inhibited toddlers were less likely to demonstrate internalizing symptoms at age 3 when dyads demonstrated more cortisol synchrony. This suggests that cortisol synchrony may serve as an advantageous context that reduces the risk of developing of internalizing symptoms and augments the field's understanding of the implications of shared physiological responses within mother–toddler dyads.     

Maternal Postpartum Depression Increases Vulnerability for Toddler Behavior Problems through Infant Cortisol Reactivity

The current study examined the role of hypothalamic‐pituitary‐adrenal reactivity (a physiological indicator of stress) in early infancy as a mediator of the relationship between maternal postpartum depression and toddler behavior problems. Participants were 137 at‐risk mothers and their children participating in a longitudinal study of intergenerational transmission of risk. Mothers’ depression was measured five times during the infants’ first 18 months. Infant cortisol was collected during a social stressor (the still‐face paradigm) when infants were 6 months old, and mothers reported on toddlers’ internalizing and externalizing symptoms at 18 months. Among this sample of high‐risk mother–infant dyads, early postpartum depression predicted atypical infant cortisol reactivity at 6 months, which mediated the effect of maternal depression on increased toddler behavior problems. Clinical implications are discussed.     

Mothering,Fathering, and Externalizing Behavior in Toddler Boys

This study examined the effects of reported maternal and paternal support, psychological control, and spanking on externalizing behavior of toddler boys. Questionnaires were administered to both parents of 104 two‐parent families with a 3‐year‐old son. Both maternal and paternal psychological control was related to boys' externalizing behavior. Interaction effects were found, in that the association between maternal spanking and boys' externalizing behavior was stronger when levels of maternal support were high. High levels of paternal support strengthened the association between maternal support and boys' externalizing behaviors. Results suggest that the associations between specific parenting dimensions and children's externalizing behavior need to be considered within the context of other parenting dimensions that are displayed within the family.     

Toddler Emotion Regulation With Mothers and Fathers: Temporal Associations Between Negative Affect and Behavioral Strategies

The present study investigated temporal associations between putative emotion regulation strategies and negative affect in 20‐month‐old toddlers. Toddlers’ parent‐focused, self‐distraction, and toy‐focused strategies, as well as negative affect, were rated on a second‐by‐second basis during laboratory parent–toddler interactions. Longitudinal mixed‐effects models were conducted to determine the degree to which behavioral strategy use predicts subsequent negative affect and negative affect predicts subsequent strategy use. Results with mother–toddler and father–toddler dyads indicated that parent‐focused strategies with an unresponsive parent were followed by increases in negative affect, whereas toy‐focused strategies were followed by decreases in negative affect. Results also indicated that toddler negative affect serves to regulate behavioral strategy use within both parent contexts.     

Maternal Lifetime Trauma Exposure,Prenatal Cortisol,and Infant Negative Affectivity

Little research has examined the impact of maternal lifetime trauma exposure on infant temperament. We examined associations between maternal trauma history and infant negative affectivity and modification by prenatal cortisol exposure in a sociodemographically diverse sample of mother–infant dyads. During pregnancy, mothers completed measures of lifetime trauma exposure and current stressors. Third‐trimester cortisol output was assessed from maternal hair. When infants were 6 months old, mothers completed the Infant Behavior Questionnaire‐Revised. In analyses that controlled for infant sex and maternal age, education, race/ethnicity, and stress during pregnancy, greater maternal trauma exposure was associated with increased infant distress to limitations and sadness. Higher and lower prenatal cortisol exposure modified the magnitude and direction of association between maternal trauma history and infant rate of recovery from arousal. The association between maternal trauma history and infant distress to limitations was somewhat stronger among infants exposed to higher levels of prenatal cortisol. The analyses suggested that maternal lifetime trauma exposure is associated with several domains of infant negative affectivity independently of maternal stress exposures during pregnancy and that some of these associations may be modified by prenatal cortisol exposure. The findings have implications for understanding the intergenerational impact of trauma exposure on child developmental outcomes.     

Child,Caregiver, and Temperament Contributions to Infant Joint Attention

Little is known about variables that may contribute to individual differences in infant joint attention, or the coordination of visual attention with a social partner. Therefore, this study examined the contributions of caregiver behavior and temperament to infant joint attention development between 9 and 12 months. Data were collected from 57 infants using a caregiver–infant paradigm, an infant–tester paradigm, and a parent report of infant temperament. Nine‐month measures of caregiver scaffolding and infant initiating joint attention (IJA) with testers were significantly related to 12‐month infant IJA with testers. A temperament measure of positive emotional reactivity was related to 9‐month IJA, and a measure of negative emotional reactivity was related to 12‐month IJA. Temperament and caregiver scaffolding measures, however, were not associated with the development of infant responding to joint attention. These results further the understanding of the multiple processes that contribute to joint attention development in infancy, and support the hypothesis that initiating and responding measures tap different aspects of joint attention development.     

Pregnancy Acceptance,Parenting Stress,and Toddler Attachment in Low‐Income Black Families

Questionnaire items tapping feelings about pregnancy were administered to 173 young, low‐income primiparous Black mothers who either were pregnant or had delivered within the past year. A factor analysis indicated that 11 items together measured mothers’ acceptance of the pregnancies that resulted in the births of their first children. Links to mothers’ later parenting stress, warmth, and their toddlers’ attachment security were explored. Pregnancy acceptance was a negative predictor of one aspect of maternal parenting stress (distress resulting from feelings that parenting is burdensome) and a positive predictor of toddler attachment security. It did not, however, predict another aspect of parenting stress (feelings that interactions with children are not enjoyable) or maternal warmth.     

Financial Strain,Neighborhood Stress,Parenting Behaviors,and Adolescent Adjustment in Urban African American Families

Using latent variable structural equation modeling, we tested a theoretical model linking financial strain, neighborhood stress, parenting behavior, and adolescent adjustment. The sample consisted of 305 African American families living in inner city neighborhoods. Of the families, 40% were living at or below the U.S. poverty threshold. The primary caregiver and a focal adolescent (mean age 13.5 years) were interviewed separately in each family. The results indicated that the income‐to‐need ratio was significantly related to financial strain and neighborhood stress, both of which were positively associated with psychological distress in parents. Parent psychological distress was positively related to more negative and less positive parent–adolescent relations, which predicted a lower positive and higher negative adjustment in adolescents. The results extend previous findings by demonstrating that neighborhood characteristics are an important mediator between economic hardship and parent and adolescent behaviors.     

Adolescent Mothers and Depression: Predictors of Resilience and Risk Through the Toddler Years

ABSTRACT

This study investigated predictors of depression in 278 African-American, 206 European-American, and 122 Hispanic teen mothers approximately 36 months after the birth while controlling for depression 14 months after the birth. Predictor variables were age, ethnicity, mastery, knowledge of development, and parental distress. Younger teens were not more depressed than older teens. Although there were not significant differences by ethnicity in 14 month depression, significant differences were evident at 36 months. European-American mothers were the most depressed, whereas Hispanic mothers were the least depressed. Parental distress was positively associated with depression at 36 months while controlling for depression at 14 months. This study provides information for targeting teen mothers at the highest risk for depression through the toddler years, as well as spurs ideas for intervention stategies.     

Infant Electroencephalogram Coherence and Toddler Inhibition are Associated with Social Responsiveness at Age 4

Previous work has suggested that individual differences in infant functional neuroconnectivity are a potential biomarker for later cognitive and social outcomes, but the mechanisms are unclear. This study investigated a longitudinal model of infant frontotemporal electroencephalogram (EEG) coherence predicting toddler inhibition, which then predicted childhood social responsiveness. A structural equation model showed good fit, with increased right hemisphere frontotemporal EEG coherence predicting less inhibition at age 2, which in turn predicted less social responsiveness at age 4. These findings support the hypothesis that infant frontotemporal connectivity is indirectly associated with later social behavior, with toddler inhibition as a potential mechanism.     

Attention to Threat as a Predictor of Shyness in the Context of Internalizing and Externalizing Behavior

The duration of children's attention to putative threat has been documented as a consistent predictor of later anxiety in inhibited children across childhood (Fox, New Directions for Child and Adolescent Development, 127, 2010, 33; Pérez‐Edgar & Fox, Child and Adolescent Psychiatric Clinics of North America, 14, 2005, 681). However, attention to threat has not been broadly examined within existing behavioral contexts and has seldom been studied in very early childhood. Whereas toddlers with high levels of internalizing behavior may view fear‐inducing stimuli as a threat, toddlers with high levels of externalizing behavior may demonstrate attention out of interest or sensation seeking. Thus, attention to threat was expected to predict increased toddler shyness in the context of either high internalizing problems or low externalizing behavior. We examined 117 twenty‐four‐month‐old toddlers to determine whether attention to threat interacted with internalizing and externalizing behavior at 24 months of age to predict toddler shyness one year later. Results indicated that attention to threat predicted toddlers' lower shyness at 36 months when toddlers’ externalizing behavior at age 24 months were high, but there was no significant interaction between toddlers’ internalizing behavior and their attention to threat in predicting later shyness. These results expand our understanding of the contexts in which attention to threat in early childhood is a viable predictor of later shyness.     

Racial Discrimination as a Moderator of the Links Among Stress,Maternal Psychological Functioning,and Family Relationships

This study focuses on the links between social contexts and normative family patterns to identify factors at the societal, community, family, and individual levels that enhance African Americans' ability to overcome stressful life events and foster positive family relationships. The Mundane Extreme Environmental Stress Model was used to explore these links. From urban and rural areas in Iowa and Georgia, 383 families with 10‐ or 11‐year‐old children were recruited. Structural equation modeling was used to test the hypotheses. Maternal psychological distress was linked with parent‐child relationship quality both directly and indirectly through its association with intimate partnership quality. When racial discrimination was greater, stronger links emerged between stressor pileup and psychological distress, as well as between psychological distress and the quality of both intimate partnerships and parent‐child relationships. Future research on African American family processes should include the effects of racial discrimination.     

Social Capital and Adolescent Substance Use: The Role of Family,School, and Neighborhood Contexts

This study assesses the link between social capital factors of norm‐setting social arenas including family, school, and neighborhood and adolescent substance use measured by cigarette smoking, alcohol consumption, and illicit drug use among a sample of adolescents in California. The key messages of this study are that socialization processes at different life domains, in varying degrees, are associated with adolescent substance use behavior. Compared with school and neighborhood contexts, family is the most influential setting that should be primarily targeted for youth substance use prevention. Among different aspects of within‐family social resources, parental monitoring seems to be the most protective of adolescent substance use. Study implications on family‐based interventions are discussed.     

An Examination of Correlates for Adolescent Engagement in Nonsuicidal Self‐Injury,Suicidal Self‐Injury,and Substance Use

Little research has examined potential risk factors for direct versus indirect self‐injury among adolescents. To address this limitation, 541 clinically referred adolescents were assessed using the interRAI Child and Youth Mental Health Assessment. Logistic regression analyses revealed that older females who experienced heightened depressive symptoms and neighborhood violence were at increased risk for direct self‐injury, specifically nonsuicidal and suicidal self‐injury. Additionally, adolescents who experienced higher levels of caregiver distress were at greater risk of suicidal self‐injury. In contrast, older adolescents who experienced heightened aggressive behavior were at increased risk for one form of indirect self‐injury, substance use. Findings suggest that nonsuicidal self‐injury, suicidal self‐injury, and substance use are associated with differential risk factors. Implications for targeted prevention strategies are discussed.     

Family Rituals in Low‐Income African American Families at Risk for Trauma Exposure and Associations with Toddlers’ Regulation of Distress

This study included 75 mother‐father‐toddler triadic low‐income families. Mothers and fathers reported separately on their own posttraumatic stress disorder (PTSD) symptoms and family rituals while children were rated by an independent observer during an emotionally eliciting task on key indicators of regulation of distress. Regression analyses supported a significant association between key dimensions of family rituals and Toddlers’ regulation of distress: occurrence, continuation, and spirituality. Effect sizes of tested relationships were strong, ranging from 25% to 36% of variance in children's distress explained. Family rituals are a salient intervention target in families and specifically help support children's developing emotion regulation competencies. Certain dimensions of family rituals may be particularly relevant to African American families, considering cultural resiliency factors. Clinical implications are discussed.     

My Hot Toddler

This is a commissioned attempt to think-about the intense and intimate reactions my hypertypical toddler, Jasper, evokes with his capable and beautiful body and mind. It is a short meditation on desire, sexuality, gender, and maternal love through the dialectical frame of feminism, queer sensibility, and the dreaded essentialism.     

Toddlers' Empathy‐Related Responding to Distress: Predictions From Negative Emotionality and Maternal Behavior in Infancy

This study focused on the predictive contributions of infants' temperamental negative emotionality (proneness to fear, anger), sex, maternal responsivity, and their interaction on toddlers' empathy‐related responding to distress in 3 contexts. Ninety‐eight infants and their mothers participated in a longitudinal study. When the infants were 10 months of age, mothers completed assessments of infant temperamental anger and fear, and maternal behaviors were observed in a free‐play setting. At 18 months of age, toddlers' empathy‐related responding to the distress of a stranger, a crying baby doll, and the mother was assessed. A series of hierarchical and logistic regressions were performed, and results indicated that infant fear predicted higher concerned awareness toward adults and higher personal distress reactions toward the mother. In addition, maternal responsivity predicted higher concerned attention and lower personal distress reactions toward the baby doll and mother. Findings also revealed several interaction effects to predict toddlers' empathy‐related responding to distress.     

Preconception Motivation and Pregnancy Wantedness: Pathways to Toddler Attachment Security

This research was designed to increase our understanding of how the motivational antecedents to childbearing and emotional responses to pregnancy affect the subsequent attachment bond of a toddler to his or her mother. Using a sample of 1,364 mothers and their newborns from the Study of Early Child Care, we tested a mother‐child influence framework hypothesized to mediate between the mother's preconception motivation and pregnancy wantedness and her child's security of attachment at 24 months. Almost all elements of the mediational sequence were confirmed in a structural equation model. We observed 2 unmediated pathways to attachment security, 1 from preconception motivation and 1 from parenting stress during infancy, and suggest interpretations of these unexpected pathways.     

Psychological Distress,Couple Interactions,and Parenting: A Dyadic Analysis of African American Couples

Parental depression is a well‐established risk factor for couple conflict and ineffective or hostile parenting (M. C. Lovejoy, P. A. Graczyk, E. O'Hare, & G. Neuman, 2000; L. M. Papp, M. C. Goeke‐Morey, & E. M. Cummings, 2007). Although research suggests that caregiver depression may impact parenting indirectly via increased conflict between couples (e.g., R. D. Conger et al., 2002), few studies take into account the behaviors of both caregivers in exploring these relations. The goal of the current study is to employ an actor–partner mediator model to examine the complex relations among psychological distress, negative couple interactions, and parenting. Using a sample of 162 African American couples with children, we find evidence that the psychological distress of each caregiver has an effect on couple interactions for both men and women. The effects from each caregivers' distress to parenting are mainly indirect through the interactional behaviors of the mother toward the father, consistent with the father vulnerability hypothesis (e.g., E. M. Cummings, M. Goeke‐Morey, & J. Raymond, 2004).