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Anticipatory reaching of seven- to eleven-month-old infants in occlusion situations

Margot van Wermeskerken1, John van der Kamp, Arenda F Te Velde

  • 1Research Institute MOVE, Faculty of Human Movement Sciences, VU University Amsterdam, Amsterdam, The Netherlands. m.vanwermeskerken@fbw.vu.nl

Infant Behavior & Development
|November 2, 2010
PubMed

Insights

Infants

Area of Science:

  • Developmental Psychology
  • Cognitive Neuroscience
  • Infant Motor Control

Background:

  • Infants' ability to reach for objects is crucial for interaction.
  • Understanding how infants adapt reaching to occluded objects informs developmental theories.

Purpose of the Study:

  • To investigate how occlusion duration affects infant reaching.
  • To examine age-related differences in reaching for occluded objects.

Main Methods:

  • 7- to 11-month-old infants reached for objects under varying occlusion durations (0-4s).
  • Object velocities (10-40 cm/s) and occlusion distances (0-40 cm) were manipulated.

Main Results:

  • Occlusion duration critically impacted reaching frequency and anticipation.
  • Older infants showed improved anticipatory reaching with longer occlusions.
  • Reaching frequency declined similarly across ages with increased occlusion.

Conclusions:

  • Infants' ability to guide reaching during non-visibility improves with age.
  • Findings support the graded representation hypothesis and the two-visual systems model.

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