Precursors to a Theory of Mind in infancy: Perspectives for Research on Autism

There is ample evidence for a conceptual deficit in normally developing 3-year-olds’ and autistic children's understanding of the mind. Recent research using nonverbal tasks has challenged this view since even 15-month-old infants appear to base their action predictions on a representation of the agent's beliefs (Onishi & Baillargeon, 2005). Our own findings from looking-time experiments indicate, however, that 16-month-olds’ action predictions depend on behavioural and situational cues, rather than on a person's access to information. Further research is reviewed that indicates that 14-month-olds understand what another person can and cannot see, and that 18-month-olds predict a person's action from what she previously saw, when supported by behavioural cues. These findings support a constructivist view of a gradual understanding of conditions for knowing during the second year. The relevance of such findings for research on autism is discussed.

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