Prenatal cigarette exposure and infant learning stimulation as predictors of cognitive control in childhood.

Prenatal exposures to neurotoxins and postnatal parenting practices have been shown to independently predict variations in the cognitive development and emotional-behavioral well-being of infants and children. We examined the independent contributions of prenatal cigarette exposure and infant learning stimulation, as well as their inter-relationships in predicting variations in the proficiency of executive attention, a core element of cognitive control and self-regulation. Participants were an ethnic-racially, socio-economically diverse sample of 249 children followed from birth in the Project on Human Development in Chicago Neighborhoods. We obtained histories of prenatal exposure to alcohol, cigarettes, and other drugs, and we assessed socio-economic status and learning stimulation during a home visit when the participants were infants. In childhood we utilized the Attention Networks Test to assess the proficiency of executive attention during two home visits, one year apart. Accounting for age, SES, prenatal alcohol exposure, and baseline performance, we found that prenatal cigarette exposure impaired the speed of executive attention. Infant learning stimulation mitigated these effects, and predicted better accuracy of executive attention as well, suggestive of both protective and health promoting effects. Effect sizes for these relations, whether examined independently or by their inter-relationships, were comparable to if not greater in magnitude than the effects of age on speed and accuracy, highlighting the importance of these very early experiences in shaping the proficiency of self-regulation. Since executive attention is central to cognitive control and self-regulation, previously described relations between prenatal cigarette exposure, parenting practices, and some forms of childhood psychopathology may be contingent on how early learning stimulation contributes to the proficiency of executive attention through direct and indirect effects. Furthermore, considering the prolonged developmental trajectory of executive attention, interventions to support provision of learning stimulation may mitigate poor outcomes for some at-risk children by promoting development of more proficient executive attention.

Self-regulation and its relations to adaptive functioning in low income youths.

Most studies of self-regulation involving children have linked it to specific outcomes within a single domain of adaptive functioning. The authors examined the association of self-regulation with a range of indices of adaptive functioning among 155 youth ages 8-18 years from families with very low income. Controlling for other explanatory variables, self-regulation was strongly associated with various outcome measures in the areas of mental health, behavior, academic achievement, and social competence. The authors also contrasted youths relatively high and low in self-regulation (the top and bottom quartiles). Youths with good self-regulation had much better indices of adaptive functioning across measures of social competence, academic achievement, grades, problem behaviors, and depression and anxiety than their counterparts with more diminished self-regulatory capacities. In addition, youths with better self-regulation skills stated more adaptive responses both in terms of how they coped with past stressful live events and how they would deal with hypothetical stressors. This study indicates that self-regulation is robustly associated with a range of important indices of adaptive functioning across many domains. Findings are discussed in light of their implications for theory and intervention for children of diverse economic backgrounds.

A comparison of the health and mental health status of homeless mothers in Worcester, Mass: 1993 and 2003.

OBJECTIVES: We assessed background characteristics, health status, and prevalence rates of mental health disorders in 2 studies of homeless mothers conducted in Worcester, Mass, one in 1993 and the other in 2003. METHODS: We compared the women taking part in the 2 studies, which involved similar methodologies, on the key variables of interest over time. RESULTS: Homeless families taking part in the 2003 study were poorer than those taking part in the 1993 study, and female heads of household in that study reported more physical health limitations, major depressive illness, and posttraumatic stress disorder. CONCLUSION: Data from 2003 suggest that the characteristics of homeless mothers changed over the 10-year period assessed. Service providers and shelter staff may need to refine services so that they are responsive to these changing needs.

Exposure to violence and low-income children's mental health: direct, moderated, and mediated relations.

The authors examined the association between exposure to violence and different indexes of mental health among 95 extremely poor children (age range = 8-17 years) and analyzed potential moderators and mediators. Findings indicated that 62% of youths had been exposed to at least 1 form of violence. Controlling for other explanatory factors, exposure to violence was significantly associated with internalizing symptoms (e.g., depression, anxiety) across all children, but the relation was stronger for girls compared with boys. Externalizing problem behaviors were also associated with exposure to violence, but subgroup differences were not detected. Regression analyses indicated that self-esteem and a measure of perceived chronic danger may partially mediate the link between violence exposure and mental health symptoms.

Characteristics of resilient youths living in poverty: the role of self-regulatory processes.

As part of a larger investigation of very low income families, this study examined the characteristics that differentiated resilient from nonresilient school-age youths, with a focus on self-regulation (e.g., executive function, emotion regulation) skills. Resilience was operationally defined in a robust and comprehensive manner using well-established instruments that measured children's emotional well-being and mental health. Controlling for other explanatory variables, including differences in the experience of negative life events and chronic strains, resilient youths were notably different from nonresilient youths in terms of having greater self-regulatory skills and self-esteem, as well as in receiving more active parental monitoring. Study findings are discussed with regard to the theoretical framework of self-regulation and their implications for preventive intervention.