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Published on: February 16, 2024
Socioeconomic disparity in prefrontal development during early childhood
Yusuke Moriguchi1,2,3, Ikuko Shinohara4
1Graduate School of Education, Kyoto University, Yoshidahoncho, Kyoto, 606-8501, Japan. moriguchi.yusuke.8s@kyoto-u.ac.jp.
Abstract:
Socioeconomic status (SES) has a powerful influence on cognitive, social and brain development. Children from low-SES backgrounds show poor executive function (EF). However, it is unclear if there is a SES-dependent disparity in functional brain development. The present study examined whether the SES of preschool children (N = 93) is associated with prefrontal activation during cognitive shifting tasks as measured by near-infrared spectroscopy. Low-SES children did not show activation in lateral prefrontal regions during the tasks, whereas middle- and high-SES children showed prefrontal activations, although no differences were found in terms of behavioural performance. These results suggest that SES can affect the functional development of the prefrontal regions. In this study, we discuss the practical implications of the results.
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