Mikołaj Compa, Bartłomiej Walczak, Clemens Baumbach, Jakub Kołodziejczyk, Yarema Mysak, Małgorzata Lipowska, Bernadetta Izydorczyk, Katarzyna Sitnik-Warchulska, Iana Markevych, Marcin Szwed
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引用次数: 0
Abstract
Socioeconomic inequalities affect health via multiple biological, behavioral, and social pathways. Specifically, low socioeconomic status (SES) negatively impacts children's intelligence quotient (IQ). Most data on this topic comes from high-inequality countries such as the United States. Here, we investigate the relation between SES, IQ, and attention and how it might be mediated by early-childhood factors in 10- to 13-year-old children in Poland, a country with relatively low inequality and a medium GDP level. Executive attention was measured using a go/no-go task. We found that parental education significantly influenced IQ and attention. Low SES children scored on average 3 IQ points lower than high SES children and had significantly longer reaction times and d’ (discrimination accuracies). Family SES had a clear non-mediated impact on IQ and an overall effect on attention. On the other hand, smoking/alcohol during pregnancy and breastfeeding, while all correlated with SES, did not mediate its effects on IQ or attention. We conclude that the impact of SES on cognition is considerable even in a low-inequality country such as Poland, and in our population it cannot be explained by these early-life factors.
期刊介绍：
Developmental Psychobiology is a peer-reviewed journal that publishes original research papers from the disciplines of psychology, biology, neuroscience, and medicine that contribute to an understanding of behavior development. Research that focuses on development in the embryo/fetus, neonate, juvenile, or adult animal and multidisciplinary research that relates behavioral development to anatomy, physiology, biochemistry, genetics, or evolution is appropriate. The journal represents a broad phylogenetic perspective on behavior development by publishing studies of invertebrates, fish, birds, humans, and other animals. The journal publishes experimental and descriptive studies whether carried out in the laboratory or field.
The journal also publishes review articles and theoretical papers that make important conceptual contributions. Special dedicated issues of Developmental Psychobiology , consisting of invited papers on a topic of general interest, may be arranged with the Editor-in-Chief.
Developmental Psychobiology also publishes Letters to the Editor, which discuss issues of general interest or material published in the journal. Letters discussing published material may correct errors, provide clarification, or offer a different point of view. Authors should consult the editors on the preparation of these contributions.
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