Origins of theory of mind, cognition and communication
Section snippets
Facial imitation
A prime example from the new research on infant development concerns facial imitation. The research in this area has helped to change our understanding of the innate foundations of social cognition and nonverbal communication. In the classical view, young infants were initially devoid of the ability to imitate, and they developed through stages. A landmark development occurred at about 8–12 months of age when they first became able to imitate facial gestures, such as lip and tongue movements.
Intermodal mapping: oral-visual and speech perception-production
If the AIM hypothesis is correct, it should be possible to find converging evidence outside of facial imitation. A first study along these lines involved 29-day-old infants (Meltzoff & Borton, 1979). The infants were given tiny shapes to feel in their mouths. After a 90-second period, the shapes were withdrawn without the infant seeing them. The infants were then shown a pair of visual shapes, only one of which matched the shape they had felt. The results revealed that infants' visual attention
The mutual imitation game and why it's important
Once we begin to take seriously that infants can use intermodal matching to detect the equivalence between their own behavioral productions (movements, vocalizations, etc.) and the behavior they perceive, several other pieces of the developmental puzzle begin to fall into place. For example, a common observation in the social-developmental literature is that parent-infant games are often reciprocally imitative in nature. Infants shake a rattle and parents shake back; infants vocalize and
Origins of theory of mind
People are more than physical bodies. We are more than dynamic bags of skin that can be seen, heard, and weighed. In the adult framework, persons also have beliefs, desires, and intentions that lie below the surface behavior. One cannot directly see, taste, smell, or hear mental states, but it is an essential part of our ordinary adult understanding that other people have them. Theory of mind research investigates the development of this framework (e.g., Astington & Gopnik 1991, Flavell &
Memory
Imitation on the basis of memory, after the model has disappeared, is called deferred imitation. In classical developmental theory, the onset of deferred imitation was thought to be 18 months of age, during stage-6 of the sensory-motor period. Deferred imitation was part of a broad stage change involving symbolic play, high-level object permanence, language, and other indicators of the symbolic function (Piaget, 1962).
The new empirical findings have dissociated deferred imitation from these
Components of a new developmental theory
The modern research establishes a rich innate foundation for infant development. Infants are not blank slates waiting to be written on. They are born with predispositions, perceptual biases, and representational capacities that outstrip those attributed by classical theory. Moreover, there is fundamental change and reorganization in this structure as infants develop. The 1-day-old's construal of events is not the 12-month-old's, or the 18-month-old's—not to mention the adult's.
Acknowledgements
I thank Patricia Kuhl, Alison Gopnik, and Keith Moore for longtime collaboration on many of the topics discussed here. I also am indebted to Elena Plante and Carol Boliek for their cooperation in bringing this project to fruition. I am thankful for support from grants from the National Institutes of Health (HD 22514 and the Collaborative Program of Excellence in Autism PO1HD34565).
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