Developmental Psychology最新文献

Prenatal tobacco exposure (PTE) and tobacco-cannabis coexposure (PTCE) co-occur with negative maternal emotional functioning (termed prenatal risks) and together increase risk for child regulatory problems at early school age (ESA). Little is known about developmental processes in early childhood that may mediate this association. We examined two hypothesized mediational processes linking prenatal risks to ESA emotion regulation (ER) and lability-negativity; parasympathetic functioning at toddler age and chronic risk reflected by continued postnatal maternal negative emotional functioning (i.e., depression, anger/hostility, and emotion dysregulation) and substance exposure. Congruent with differential susceptibility theory, we examined interactions between sensitive parenting and toddler parasympathetic functioning predicting ESA ER. Finally, we explored the role of child sex as a moderator. Mothers (N = 247; 53% male infants; 51% Black, 31% White, 19% Hispanic, and 8% other or mixed race) were recruited in the first trimester of pregnancy into one of three groups: PTE (n = 81), PTCE (n = 97), and no substance exposure (n = 69) matched on age and education. Substance exposure was assessed using multiple methods, maternal negative emotional functioning via self-reports, parenting with observations, and child ER using teacher, maternal, and lab assessor reports. Results supported a chronic risk pathway with less support for a parasympathetic pathway. Toddlers who demonstrated respiratory sinus arrhythmia withdrawal to frustration were susceptible to the positive context of sensitive parenting in predicting higher ER. Results emphasize the importance of chronicity of postnatal risks including substance exposure and evaluating the differential impact of positive environments for children with substance exposure. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

In the peripartum, putative mechanisms in the transmission of prenatal contextual risk and maternal psychological distress include biological and social processes. In this study, path analyses were used to test unique, cascading pathways of prenatal contextual risk and pre- and postnatal maternal psychological distress through social mediators (parenting) and biological mediators (infant stress physiology) on infant temperament and toddler adjustment. The sample is comprised of racially and ethnically diverse first-time mothers (N = 200) living in low-income contexts (< 200% poverty) who were followed from pregnancy to 18-36 months postpartum. In pregnancy, mothers reported contextual risk and psychological distress (anxiety, depression). In the postpartum, mothers reported their psychological distress. At 2-4 months postpartum, observed mother-infant interactions were coded for sensitive responsiveness. Infant cortisol baseline and reactivity to a lab stressor were collected when infants were 4-6 months old. Mothers reported on infant's temperament (negative affect, effortful control) at 10-12 months and on child adjustment (internalizing, externalizing symptoms) at 18-36 months. Prenatal contextual risk predicted infant cortisol reactivity. Prenatal psychological distress predicted postnatal distress but, when accounting for postnatal distress, did not predict putative mediators or indicators of child adjustment. In contrast, maternal postnatal depression predicted subsequent maternal sensitive responsiveness, which in turn predicted later infant baseline cortisol and cortisol reactivity. Baseline cortisol predicted infant negative affectivity, which predicted toddler internalizing and externalizing symptoms. There was no evidence of mediated effects of prenatal variables on child adjustment outcomes, whereas contextual risk, postnatal psychological distress, and parenting were more salient predictors of child adjustment. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Over the past few decades, there has been accumulating evidence that prenatal exposure to risk is negatively related to child self-regulation. However, the mechanisms underlying this relationship are unclear. The present study used a multimethod approach to simultaneously examine the mediating role of the developmental trajectories of observed parenting quality (support, stimulation, and structure) and children's functional brain networks (small-worldness) from infancy into the preschool period in a sample of 233 children and their biological mothers. The results revealed a potential sleeper effect: Prenatal exposure to risk was negatively related to child self-regulation during the preschool period, but not during infancy. Parenting quality remained relatively stable over time, whereas small-worldness showed an increase during infancy, followed by a decrease into the preschool age period. These developmental changes did not mediate the relation between prenatal risk and child self-regulation. Prenatal exposure to risk was related to lower levels of maternal support during infancy, but did not affect the development of parenting quality over time. Prenatal risk was also not related to the growth rate of small-worldness in young children. However, the developmental changes in small-worldness predicted individual differences in child self-regulation. These findings suggest that children generally have the potential to benefit from positive postnatal parenting environments, regardless of the levels of prenatal risk. A potential target for intervention efforts based on the current findings might be related to postnatal experiences that impact the development of functional brain networks, which in turn could affect the development of child self-regulation. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Premature infants may be at risk for lower effortful control, and subsequent lower academic achievement, peer competence, and emotional and physical wellness throughout the lifespan. However, because prematurity is related to obstetrical and neonatal complications, it is unclear what may drive the effect. Effortful control also has a strong heritable component; therefore, environmental factors during pregnancy and the neonatal period may interact with genetic factors to predict effortful control development. In this study, we aimed to dissect the influences of genetics, prematurity, and neonatal and obstetrical complications on the development of effortful control from 12 months to 10 years using a twin cohort. This study used data from the Arizona Twin Project, an ongoing longitudinal study of approximately 350 pairs of twins. Twins were primarily Hispanic/Latinx (23.8%-27.1%) and non-Hispanic/Latinx White (53.2%-57.8%), and families ranged in socioeconomic status with around one third falling below or near the poverty line. Of the twins, 62.6% were born prematurely. Effortful control was assessed via parent report at six waves. There was not a significant relationship between gestational age and effortful control regardless of whether obstetrical and neonatal complications were controlled for. Biometric twin modeling revealed that the attentional focusing subdomain of effortful control was highly heritable. Gestational age did not moderate genetic and environmental estimates. Our findings help inform the risk assessment of prematurity and provide evidence for the differing etiology of each subdomain of effortful control and the strong role of genetics in effortful control development. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Although maternal stress during pregnancy and even before conception shapes offspring risk for mental health problems, relatively little is known about the mechanisms through which these associations operate. In theory, preconception and prenatal stress may affect offspring mental health by influencing child responses to postnatal caregiving. To address this knowledge gap, this study had two aims. First, we examined associations between preconception and prenatal stress with child temperament profiles at age four using multilevel assessment of maternal perceived stress and stress physiology. Second, we tested child temperament profiles as moderators of associations between observed parenting behaviors during a parent-child free-play interaction when children were 4 years old and child behavior problems 1 year later. Latent profile analyses yielded four distinct child temperament profiles: inhibited, exuberant, regulated low reactive, and regulated high reactive. Consistent with hypotheses, preconception, and prenatal stress each independently predicted the likelihood of children having temperament profiles characterized by higher negative emotionality and lower regulation. Specifically, preconception perceived stress and prenatal cortisol predicted likelihood of children having an exuberant temperament, whereas prenatal perceived stress predicted likelihood of children having an inhibited temperament. Contrary to hypotheses, temperament profiles did not moderate predictions of child behavior problems from observed parenting behaviors; however, responsive parenting behaviors inversely predicted child behavior problems independently of child temperament. These findings add to growing evidence regarding effects of preconception factors on child outcomes and underscore a central role for responsive parenting behaviors in predicting more favorable child mental health independent of child temperament. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Children born less than 30 weeks gestational age (GA) are at high risk for neurodevelopmental delay compared to term peers. Prenatal risk factors and neonatal epigenetics could help identify preterm children at highest risk for poor cognitive outcomes. We aimed to understand the associations among cumulative prenatal risk, neonatal DNA methylation, and child cognitive ability at age 3 years, including whether DNA methylation mediates the association between prenatal risk and cognitive ability. We studied 379 neonates (54% male) born less than 30 weeks GA who had DNA methylation measured at neonatal intensive care unit discharge along with 3-year follow-up data. Cumulative prenatal risk was calculated from 24 risk factors obtained from maternal report and medical record and epigenome-wide neonatal DNA methylation was assayed from buccal swabs. At 3-year follow-up, child cognitive ability was assessed using the Bayley Scales of Infant and Toddler Development (third edition). Cumulative prenatal risk and DNA methylation at two cytosine-phosphate-guanines (CpGs) were uniquely associated with child cognitive ability. Using high-dimensional mediation analysis, we also identified differential methylation of 309 CpGs that mediated the association between cumulative prenatal risk and child cognitive ability. Many of the associated CpGs were located in genes (TNS3, TRAPPC4, MAD1L1, APBB2, DIP2C, TRAPPC9, DRD2) that have previously been associated with prenatal exposures and/or neurodevelopmental phenotypes. Our findings suggest a role for both prenatal risk factors and DNA methylation in explaining outcomes for children born preterm and suggest we should further study DNA methylation as a potential mechanism underlying the association between prenatal risk and child neurodevelopment. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Recent research has reported effects of socioeconomic status on neurobehavioral development as early as infancy, including positive associations between income and brain structure, functional connectivity, and behavior later in childhood (Ramphal, Whalen, et al., 2020; Triplett et al., 2022). This study extends this literature by investigating the relation of maternal prenatal social disadvantage (PSD) to neonatal amygdala and hippocampus functional connectivity and whether socioeconomic-related alterations in functional connectivity subsequently predict behavior at age 12 months in a large, socioeconomically diverse sample (N = 261 mother-infant dyads). PSD was assessed across gestation; neonatal magnetic resonance imaging was completed within the first weeks of life; and infant internalizing and externalizing symptoms were evaluated using the Infant-Toddler Social and Emotional Assessment at age 12 months. The results showed that PSD was significantly related to neonatal right amygdala and left hippocampus functional connectivity with prefrontal and motor-related regions. Social disadvantage-related right amygdala and left hippocampus functional connectivity with these regions was subsequently related to infant externalizing and internalizing symptoms at age 12 months. Building off an emerging literature exploring prenatal impacts on neonatal functional connectivity, this study further emphasizes the important role of the maternal environment during gestation on infant brain function and its relationship with externalizing and internalizing behavior in the first years of life. The results suggest that the prenatal socioeconomic environment may be a promising target for interventions aimed at improving infant neurobehavioral outcomes. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Despite the well-established importance of prenatal experiences for offspring health throughout the lifespan, our understanding of prenatal influences on psychological outcomes faces challenges due to a wide-ranging and somewhat fragmented literature. Here, we introduce the special issue of Developmental Psychology, "Prenatal Influences Across the Life Course: Biobehavioral Mechanisms of Development," which draws together a broad collection of 12 empirical studies and one review article. These studies illustrate the diversity in biobehavioral mechanisms and biopsychosocial processes that help explain the long-term impacts of prenatal experiences on human development. Collectively, these studies help to disentangle sources of influence across different life stages (e.g., prenatal from genetic, preconception, and/or postnatal influences) and fill key gaps in the literature, such as the inclusion of minoritized populations currently underrepresented in research, the role of fathers, and protective mechanisms. The research featured in this special issue underscores both the long reach of prenatal influences on child and adolescent development as well as the challenges in observing specific biological mediators given that prenatal risks are currently operationalized as specific or broad cumulative measures. In an effort to organize this complex literature, we propose a guiding framework for how to conceptualize the continued integration of the prenatal environment into the field of developmental psychology. This framework broadens the prevailing dichotomous view of prenatal mechanisms as cumulative or specific to articulate a dimensional approach focused on adaptation. We anticipate that such an approach may uncover meaningful and observable biobehavioral mechanisms of prenatal influence on offspring development in the future. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Magnitude processing and executive functions (EFs) have emerged as robust predictors of mathematics achievement. However, the nature of these associations is still unclear. For example, it is uncertain if EFs applied in the context of domain-specific mathematical cognition (i.e., EFs applied while processing numbers) are more closely related to mathematics achievement than EFs applied in nonnumerical, domain-general contexts. Also, how distinct EF domains-that is, working memory, inhibitory control, and cognitive flexibility-and contents-that is, numerical versus nonnumerical-moderate the association between magnitude processing and mathematics achievement has not been fully understood. To address these issues, we investigated how magnitude processing, EFs applied to nonnumerical and numerical task stimuli, and their interactions were associated with mathematics achievement. Three hundred fifty-nine Brazilian third- to fifth-grade (8-10 years old) students completed measures of working memory, inhibitory control, and cognitive flexibility with numerical and nonnumerical task versions, nonsymbolic and symbolic magnitude comparison, and mathematics achievement. A series of regression models indicated that nonsymbolic and symbolic magnitude processing are consistently associated with mathematics achievement, even when controlling for working memory, inhibitory control, and cognitive flexibility measured with both numerical and nonnumerical contents. All EF measures were associated with mathematics achievement. However, cognitive flexibility measured with numerical content showed the strongest association. Results support the hypothesis that magnitude processing and EFs are uniquely associated with mathematics achievement. Furthermore, EFs measured with nonnumerical and numerical contents related differently to mathematics achievement, even when controlling for symbolic and nonsymbolic magnitude processing, suggesting they encompass somewhat distinct cognitive processes. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Young children often encounter unsolvable problems with which they require others' help. To receive adequate assistance, children must be savvy about whom they seek help from: Effective helpers must possess both the ability to help (e.g., competence) and a willingness to do so (e.g., benevolence). Although past work suggests that information about competence and benevolence can inform young children's help-seeking behavior, it remains unclear how and whether children utilize said factors independently of each other. Furthermore, it is unclear whether they can generalize potential helpers' competence from one task to another. The current experiments examined whether 22- to 23-month-olds confronted with a broken toy selectively sought help from agents who had previously demonstrated either competence (Experiment 1) or benevolence (Experiment 2). In Experiment 1, infants preferred to seek help from a competent agent who successfully opened a closed box over one who failed to do so. In Experiment 2, infants selectively sought help from a benevolent agent who helped a third party by returning a lost ball, over an agent who stole the ball instead. These patterns of selectivity were not driven by associative valence matching; in Experiment 3, infants showed no preference for an agent who was itself helped versus an agent who was hindered. These results suggest that before their second birthday, infants independently utilize cues to both competence and benevolence to inform their help seeking, using information generalized from novel contexts. We discuss the potential nature of this generalization as well as directions for future work. (PsycInfo Database Record (c) 2024 APA, all rights reserved).