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Related Experiment Videos

Reaching movements in children: accuracy and reaction time development.

Marco Favilla1

  • 1Dipartimento di Scienze biomediche e terapie avanzate, Sezione di Fisiologia umana, Università di Ferrara, v. Fossato di Mortara 17-19, 44100, Ferrara, Italy. marco.favilla@unife.it

Experimental Brain Research
|December 22, 2005
PubMed
Summary

Children

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Area of Science:

  • Developmental psychology
  • Motor control
  • Human movement science

Background:

  • Childhood motor development involves acquiring skills for precise movements.
  • Understanding the progression of pre-planning capabilities in reaching tasks is crucial.

Purpose of the Study:

  • To track the development of adult-like fast and precise reaching movements in children.
  • To assess information processing and motor response accuracy during childhood.

Main Methods:

  • A two-dimensional reaching task was employed, emphasizing pre-planning without corrections.
  • Key metrics included reaction time (RT), movement time (MT), and response precision.
  • Repeated testing of one child (ages 6-9) and cross-sectional testing of child groups (ages 6-9) and adults.

Main Results:

  • Reaction times (RT) decreased by age 7, while accuracy improved by age 8.
  • Movement times (MT) remained consistently adult-like throughout development.
  • Both RT and accuracy reached adult levels by age 9.

Conclusions:

  • Children aged 6-9 develop the ability to process visual information and execute accurate, fast, uncorrected reaching movements.
  • Motor reaction speed (RT) and motor programming accuracy develop independently, with RT improving earlier.
  • Adult-like movement control, characterized by rapid, precise, and uncorrected movements, is established during this developmental period.

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