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  • Title: Dual routes to cognitive flexibility: learning and response-conflict resolution in the dimensional change card sort task.
    Author: Ramscar M, Dye M, Gustafson JW, Klein J.
    Journal: Child Dev; 2013; 84(4):1308-23. PubMed ID: 23311677.
    Abstract:
    Cognitive control, the ability to align our actions with goals or context, is largely absent in children under four. How then are preschoolers able to tailor their behavior to best match the situation? Learning may provide an alternative route to context-sensitive responding. This study investigated this hypothesis in the Dimensional Change Card Sort (DCCS), a classic test of cognitive control that most under-fours fail. A training intervention based on learning theoretic principles proved highly effective: Three-year-olds who learned about DCCS rules and game contexts in a card-labeling task, subsequently transferred this knowledge to sorting in the DCCS, passing at more than 3 times the rate of controls (N = 47). This surprising finding reveals much about the nature of the developing mind.
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