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Aligning body and world: stable reference frames improve young children's search for hidden objects

Lynn K Perry1, Larissa K Samuelson, John P Spencer

  • 1Department of Psychology, University of Iowa, Iowa City, IA 52242, USA. lynn-perry@uiowa.edu

Journal of Experimental Child Psychology
|January 27, 2009
PubMed

Insights

Young children

Area of Science:

  • Cognitive Science
  • Developmental Psychology
  • Spatial Cognition

Background:

  • Young children's spatial search abilities develop significantly between ages 2 and 3.
  • The ability to use spatial reference frames is crucial for object permanence and search tasks.
  • Previous research indicates 2-year-olds struggle with tasks requiring flexible spatial frame use, unlike 3-year-olds.

Purpose of the Study:

  • To investigate how enhancing spatial reference frames impacts young children's object search accuracy.
  • To determine if increased salience and stability of reference frames improve performance in a ramp task for 2- and 2.5-year-olds.
  • To understand the role of egocentric and object-centered reference frames in early spatial cognition.

Main Methods:

  • Two experiments were conducted with 2- and 2.5-year-old children using a ramp task with a hidden object.
  • Experiment 1 manipulated the salience of a barrier, while Experiment 2 manipulated the stability of the barrier and ramp.
  • Children's performance was assessed based on their ability to accurately locate the hidden object above chance levels.

Main Results:

  • In Experiment 1, 2.5-year-olds showed above-chance performance with a more salient barrier.
  • In Experiment 2, children performed significantly better with a stable barrier compared to a stable ramp.
  • Performance was linked to the alignment of egocentric and object-centered reference frames.

Conclusions:

  • Enhancing the salience and stability of spatial reference frames significantly improves young children's object search performance.
  • The findings highlight the critical role of aligning different spatial reference frames during a transitional developmental phase.
  • This research provides insights into the interplay of spatial cognition and motor planning in early childhood development.

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