eories of Cognitive Development

Any well-worked out epistemology will provide at least the materials for a theory of cognitive development in childhood. Thus according to René Descartes a clear and distinct knowledge of the world can be constructed from resources innate to the human mind (Descartes, PW, 131). John Locke, by contrast, maintains that the human mind begins as a “white paper, void of all characters, without any ideas” (Locke, EHC, 121). On this view all the “materials of reason and knowledge” come from experience. Locke's denial of the doctrine of innate ideas was, no doubt, directed specifically at Descartes and the Cartesians. But it also implies a rejection of the Platonic doctrine that learning is a recollection of previously known Forms. Few theorists of cognitive development today find either the extreme empiricism of Locke or the strong innatism of Plato or Descartes completely acceptable.
Behaviorism has offered recent theorists of cognitive development a way to be strongly empiricist without appealing to Locke's inner theater of the mind. The behaviorist program was, however, dealt a major setback when Noam Chomsky, in his review (1959) of Skinner's Verbal Behavior (1957), argued successfully that no purely behaviorist account of language-learning is possible. Chomsky's alternative, a theory of Universal Grammar, which owes some of its inspiration to Plato and Descartes, has made the idea of innate language structures, and perhaps other cognitive structures as well, seem a viable alternative to a more purely empiricist conception of cognitive development.
It is, however, the work of Jean Piaget that has been most influential on the way psychologists, educators, and even philosophers have come to think about the cognitive development of children. Piaget's early work, The Child's Conception of the World (1929), makes especially clear how philosophically challenging the work of a developmental psychologist can be. Although his project is always to lay out identifiable stages in which children come to understand what, say, causality or thinking or whatever is, the intelligibility of his account presupposes that there are satisfactory responses to the philosophical quandaries that topics like causality, thinking, and life raise.
Take the concept of life. According to Piaget this concept is acquired in four stages (Piaget, 1929, Chapter 6)

First Stage: Life is assimilated to activity in general
Second Stage: Life is assimilated to movement
Third Stage: Life is assimilated to spontaneous movement
Fourth Stage: Life is restricted to animals and plants

These distinctions are suggestive, but they invite much more discussion than Piaget elicits from his child subjects. What is required for movement to be spontaneous? Is a bear alive during hibernation? We may suppose the Venus flytrap moves spontaneously. But does it really? What about other plants? And then there is the question of what Piaget can mean by calling the thinking of young children “animistic,” if, at their stage of cognitive development, their idea of life is simply “assimilated to activity in general.”
Donaldson (1978) offers a psychological critique of Piaget on cognitive development. A philosophical critique of Piaget's work on cognitive development is to be found in Chapters 3 and 4 of Matthews (1994). Interesting post-Piagetian work in cognitive development includes Cary (1985), Wellman (1990), Flavel (1995), Subbotsky (1996), and Gelman (2003).
Recent psychological research on concept formation has suggested that children do not generally form concepts by learning necessary and sufficient conditions for their application, but rather by coming to use prototypical examples as reference guides. Thus a robin (rather, of course, than a penguin) might be the child's prototype for ‘bird’. The child, like the adult, might then be credited with having the concept, bird, without the child's ever being able to specify, successfully, necessary and sufficient conditions for something to count as a bird. This finding seems to have implications for the proper role and importance of conceptual analysis in philosophy. It is also a case in which we should let what we come to know about cognitive development in children help shape our epistemology, rather than counting on our antecedently formulated epistemology to shape our conception of cognitive development in children (see Rosch and Lloyd, 1978, and Gelman, 2003).
Some developmental psychologists have recently moved away from the idea that children are to be understood primarily as human beings who lack the capacities adults of their species normally have. This change is striking in, for example, the work of Alison Gopnik, who writes: “Children aren't just defective adults, primitive grownups gradually attaining our perfection and complexity. Instead, children and adults are different forms of homo sapiens. They have very different, though equally complex and powerful, minds, brains, and forms of consciousness, designed to serve different evolutionary functions” (Gopnik, 2009, 9). Part of this new respect for the capacities of children rests on neuroscience and an increased appreciation for the complexity of the brains of infants and young children. Thus Gopnik writes: “Babies' brains are actually more highly connected than adult brains; more neural pathways are available to babies than adults.” (11)

eories of Cognitive Development

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eories of Cognitive Development