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Quantifying Learning in Young Infants: Tracking Leg Actions During a Discovery-learning Task
11:18

Quantifying Learning in Young Infants: Tracking Leg Actions During a Discovery-learning Task

Published on: June 1, 2015

Early complexity supports development of motor behaviors in the first months of life

Stacey C Dusing1, Leroy R Thacker, Nicholas Stergiou

  • 1Department of Physical Therapy, Motor Development Lab, Virginia Commonwealth University, P.O. Box 980224, Richmond, VA 23298, USA. scdusing@vcu.edu

Developmental Psychobiology
|May 11, 2012
PubMed

Insights

Infants exhibit complex postural control early in development. This complexity reduces as motor skills emerge, even if variability magnitude remains constant, showing adaptive learning.

Area of Science:

  • Developmental neuroscience
  • Motor control
  • Infant biomechanics

Background:

  • Motor behavior complexity is key to healthy development.
  • Understanding postural control evolution in infants is crucial for developmental insights.

Purpose of the Study:

  • To investigate postural complexity in infants aged 1-6 months.
  • To examine how postural control changes with the development of early motor behaviors.
  • To analyze postural adaptation under varying conditions.

Main Methods:

  • Utilized linear and nonlinear measures of center of pressure (COP) displacement.
  • Quantified postural control magnitude and temporal structure.
  • Employed behavioral coding to track midline head control and early reaching development.

Main Results:

  • Infants demonstrate inherent complexity in postural control strategies from an early age.
  • Postural complexity decreases as infants acquire new motor skills, independent of variability magnitude.
  • Infants successfully adapted their postural control variability magnitude across different experimental conditions.

Conclusions:

  • Infant postural control is complex and adaptable early in life.
  • Motor learning influences the temporal structure of postural control, not necessarily its magnitude.
  • A three-stage model is proposed to explain the development of adaptive motor behaviors in infants.

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