Executive function effects and numerical development in children: behavioural and ERP evidence from a numerical Stroop paradigm

Soltész, Fruzsina, Goswami, Usha, White, Sonia and Szűcs, Dénes (2011) Executive function effects and numerical development in children: behavioural and ERP evidence from a numerical Stroop paradigm. [in special issue: Educational Neuroscience] Learning and Individual Differences, 21 (6), 662-671. (doi:10.1016/j.lindif.2010.10.004).

Abstract

Most research on numerical development in children is behavioural, focusing on accuracy and response time in different problem formats. However, Temple and Posner (1998) used ERPs and the numerical distance task with 5-year-olds to show that the development of numerical representations is difficult to disentangle from the development of the executive components of response organization and execution. Here we use the numerical Stroop paradigm (NSP) and ERPs to study possible executive interference in numerical processing tasks in 6–8-year-old children. In the NSP, the numerical magnitude of the digits is task-relevant and the physical size of the digits is task-irrelevant. We show that younger children are highly susceptible to interference from irrelevant physical information such as digit size, but that access to the numerical representation is almost as fast in young children as in adults. We argue that the developmental trajectories for executive function and numerical processing may act together to determine numerical development in young children.

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