Cue salience and infant perseverative reaching: tests of the dynamic field theory

Dev Sci. 2009 Jan;12(1):26-40. doi: 10.1111/j.1467-7687.2008.00769.x.

Abstract

Skilled behavior requires a balance between previously successful behaviors and new behaviors appropriate to the present context. We describe a dynamic field model for understanding this balance in infant perseverative reaching. The model predictions are tested with regard to the interaction of two aspects of the typical perseverative reaching task: the visual cue indicating the target and the memory demand created by the delay imposed between cueing and reaching. The memory demand was manipulated by imposing either a 0- or a 3-second delay, and the salience of the cue to reach was systematically varied. Infants demonstrated fewer perseverative errors at 0-delay versus 3-second delay based on the cue salience, such that a more salient visual cue was necessary to overcome a longer delay. These results have important implications for understanding both the basic perceptual-motor processes that produce reaching in infants and skilled flexible behavior in general.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Attention / physiology
  • Behavior / physiology*
  • Child Development / physiology*
  • Cognition / physiology
  • Cues
  • Female
  • Humans
  • Infant
  • Male
  • Memory / physiology*
  • Models, Psychological*
  • Space Perception / physiology*
  • Task Performance and Analysis*