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Pubmed for Handhelds

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  • Title: Infants return to two-handed reaching when they are learning to walk.
    Author: Corbetta D, Bojczyk KE.
    Journal: J Mot Behav; 2002 Mar; 34(1):83-95. PubMed ID: 11880252.
    Abstract:
    The authors examined whether infants of about 1 year return to 2-handed reaching when they begin to walk independently. Infants (N = 9) were followed longitudinally before, during, and after their transition to upright locomotion. Every week, the infants' reaching responses and patterns of interlimb coordination were screened in 3 tasks involving different adaptive reaching responses. Before the onset of upright locomotion, the infants responded to each task adaptively. Following walking onset, they increased their rate of 2-handed responses in all tasks. The 2-handed responses declined when the infants gained better balance control. The results suggest that infants' return to 2-handed reaching is experience dependent. Those findings are discussed in terms of the integration of new developing motor skills into existing cognitive and motor repertoires.
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