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Related Experiment Videos

Why don't they just let it go?

C D Vallotton1, L V Harper

  • 1University of California, Davis, USA. vallotcl@gse.harvard.edu

Infant Behavior & Development
|December 2, 2006
PubMed
Summary

Infants imitate interesting physical events by reproducing the action, not the cause. This suggests preverbal infants may believe they must apply force to create phenomena, impacting our understanding of infant cognition.

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Area of Science:

  • Developmental Psychology
  • Cognitive Science
  • Infant Behavior

Background:

  • Discrepancies exist between infant expectations (looking time) and actions regarding physical causality.
  • Previous research has faced criticism regarding claims about infant knowledge.
  • Baillargeon (1999) suggests further task examination before revising developmental views.

Purpose of the Study:

  • To investigate a new discrepancy indicating what is salient for preverbal infants.
  • To explore infant imitation of physical events, specifically a bouncing ball.
  • To analyze whether infants imitate the cause or the effect of an observed action.

Main Methods:

  • Examined Uzgiris-Hunt test performances of 40 infants (7.6-26.9 months old).
  • Observed infant reactions to a bouncing ball event.
  • Compared imitation performances between infants who reproduced the drop versus those who reproduced the bounce.

Main Results:

  • Infants were captivated by the bouncing ball.
  • Most infants reproduced the bounce action (hitting the ball) rather than the experimenter's drop action.
  • Two interpretations suggest goal-directed imitation of interesting phenomena.

Conclusions:

  • Infants may imitate phenomena they find interesting by reproducing the action.
  • A possible interpretation is that infants believe they must apply force to make events happen.
  • Findings contribute to understanding preverbal infants' understanding of physical causality and imitation.

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