Implications of Infant Cognition for Executive Functions at Age 11

Recent work suggests that executive functions, the cornerstone of higher-level cognitive operations, are driven by basic information processing abilities. Using structural equation modeling, with latent variables, the present study provides the first evidence that this driving force begins in infancy, such that abilities in infancy predict executive functions at age 11. Information processing abilities in three domains (attention, processing speed, and memory) were assessed when participants were infants (7 and 12 months) and toddlers (24 and 36 months) and were used to predict three executive functions (working memory, inhibition, and shifting) when participants were 11 years old. A model relating infant abilities to age-11 executive functions fit well, and accounted for 9% to 19% of the variance in the executive functions. Paths from both Speed and Memory in infancy to age-11 Working Memory were significant, as was the path from Speed in infancy to age-11 Shifting. A model using abilities in toddlerhood as predictors fit similarly. These findings implicate early basic cognitive abilities in the development of executive functions.

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