Robust evidence of the deleterious effects of poverty on children's academic achievement has generated considerable interest in the neural mechanisms underlying these associations. In studies of specific neurocognitive skills, researchers have found pronounced socioeconomic disparities in children's language and executive function (EF) skills. In this article, we review research linking socioeconomic factors (e.g., family income, parental education) with children's brain structure and function, focusing on the neural systems involved in language and EF. Then, we cover the potential mediators of these associations, developmental timing, and strategies for prevention and intervention. To complement research at the behavioral level, we conclude with recommendations for integrating measures of the developing brain into this ongoing work.

Chronic environmental stress has deleterious effects on the developing child. While the type and degree of stress that children experience can vary widely, the downstream influence of varying stressors may impact child development similarly. Of particular interest is building an understanding of how chronic stress impacts brain functioning early in life, as both environmental stress and alterations in patterns of infant brain development have been related to a constellation of subsequent negative developmental outcomes. Among typically developing children, studies using electroencephalography (EEG) have shown that the relative contribution of low-frequency resting EEG power decreases with age, whereas the relative contribution of high-frequency resting EEG power increases with age (Marshall, Bar-Haim, & Fox, 2002). A variety of highly stressful environments have been linked to alterations

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Detrimental circumstances (e.g., poverty, homelessness) may affect parents, parenting, and children. These circumstances may lead to children being labeled “at risk” for school failure. To ameliorate this risk, more school and school earlier (e.g., Head Start) is offered. To improve child outcomes, Head Start teachers are expected to bolster children?s academic readiness in a manner that is beneficially warm, circulating warmth in their classrooms to sustain positive teacher-child relationships and the positive climate of the classroom. The Classroom Assessment Scoring System (CLASS; Pianta et al., 2008) is one tool by which these domains of warmth are assessed. There are, however, significant personal and professional stressors with which Head Start teachers contend which the CLASS (Pianta et al., 2008) does not consider in its scoring methods. Uplifting the voices of six Head Start teachers, the present study implemented individual and focus group interviews during the summer and fall months of 2020 during the COVID-19 pandemic, asking (a) What were the stories, histories, and lived experiences of these Head Start teachers with regard to stress and warmth in a time of crisis? and (b) How did these teachers understand and approach the CLASS (Pianta et al., 2008) and its measures of their warmth? Data demonstrated Head Start teachers engaged in a type of performativity to 1) mask their stress, potentially worsening their levels of stress in order to maintain warmth for their students’ sake, and 2) outwit the prescribed CLASS (Pianta et al., 2008) observations. Implications and insights are discussed. Supplementary Information The online version contains supplementary material available at 10.1007/s10643-022-01387-2.