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Perceptual–motor constraints on decision making: The case of the manual search behavior for hidden objects in toddlers

Abstract : In the C-not-B task, 2.5-year-old children tend to look for an object in a location to which the hiding agent moved his hand (C) after moving an object from A to B. In three experiments, the authors investigated the nature of the constraints underlying toddlers’ performance in this task. In Experiment 1, 2.5-year-olds were tested in a new version of the C-not-B task to investigate whether reaching with a detour leads to inhibition of direct visuomotor activation. The findings show that toddlers succeed more in the C-not-B task when a transparent barrier obstructs the path of the reaching movement. The results of Experiment 2 indicate that the successful performance of the children with a barrier cannot merely be the consequence of the longer duration of arm movements. In Experiment 3, pointing responses generated more toddlers’ success in the C-not-B task than did reaching responses. These experiments suggest that decision-making processes and judgments in toddlers are affected by constraints intrinsic to the perceptual–motor system. Highlights ► We investigated toddlers’ performance in a manual search task for hidden objects. ► Toddlers succeed when a transparent barrier obstructs the reaching path. ► Pointing responses generated more toddlers’ success than did reaching responses. ► Decision-making processes in toddlers are affected by perceptual–motor constraints.
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https://hal-normandie-univ.archives-ouvertes.fr/hal-02343866
Contributor : James Rivière <>
Submitted on : Sunday, November 3, 2019 - 4:16:58 PM
Last modification on : Monday, November 25, 2019 - 11:40:26 AM

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James Rivière, Elodie David. Perceptual–motor constraints on decision making: The case of the manual search behavior for hidden objects in toddlers. Journal of Experimental Child Psychology, Elsevier, 2013, 115 (1), pp.42-52. ⟨10.1016/j.jecp.2012.11.006⟩. ⟨hal-02343866⟩

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