Research Interests: Perceptual and cognitive development in early childhood; classification and categorization; interactions between perception and language.

Current Studies

  • Toy Play Study
  • Understanding Changes in Physiology During Play
  • Early Visual Environments of Infants and Toddlers and the Homeview Project
  • Parent and Child Joint Play
  • Object Training Study

Areas of Study

  • Cognitive Science
  • Developmental Psychology

Research Topics

  • Sensory-motor dynamics of attention and learning
  • Development of visual object recognition
  • Word learning

The central theoretical question is the study of developmental process and mechanisms of change. The work focuses on early changes in perception, language, and action and how those changes in these areas support each other particularly around the age (12 months to 24 months) that children break into language.

Cognitive Science, Psychology
PhD, University of Pennsylvania, Psychology, 1977
BS, University of Wisconsin-Madison, Psychology, 1973
infants language acquisition psycholinguistics psychology developmental psychology educational psychology infant psychology