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Catching skills in infancy.

C von Hofsten

    Journal of Experimental Psychology. Human Perception and Performance
    |February 1, 1983
    PubMed
    Summary
    This summary is machine-generated.

    Infants can accurately time and coordinate reaching movements toward fast-moving objects. This suggests early-developed visual-motor skills, with infants referencing the object

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    Area of Science:

    • Developmental psychology
    • Motor control
    • Infant perception

    Background:

    • Understanding infant motor development is crucial for identifying early cognitive and perceptual abilities.
    • Previous research has explored infant reaching, but the specific coordination with moving objects requires further investigation.

    Purpose of the Study:

    • To investigate how infants coordinate their reaching movements with fast-moving objects.
    • To determine if infants use a coordinate system relative to the object or the background.

    Main Methods:

    • 144 infant reaches toward fast-moving objects were analyzed using a 3D motion analysis technique.
    • Object velocity and starting position were systematically varied during trials.

    Main Results:

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    • Infant reaches were consistently aimed near the predicted meeting point with the object.
    • Timing precision was high (approximately 1/20th of a second) with minimal systematic errors.
    • Reaching movements appeared to be coordinated with the object's motion.

    Conclusions:

    • Infants demonstrate a sophisticated ability to time and coordinate reaching movements for catching.
    • The findings suggest infants utilize a coordinate system fixed to the moving object, not the static background.
    • This capacity for visually guided reaching is a fundamental and early-developing motor skill.