Mental Development in Twins

Résumé fourni par la source

Natural and cultural processes not only arise from different sources but also change in different ways in the course of development. As a child grows older, natural processes change quantitatively . Cultural processes, on the other hand, change qualitatively . To use memory as an example again, it is not just that the growing child’s natural capacity to register and retrieve information increases; as a result of the increasing influence of the social environment, changes occur in the principles whereby the information is registered and retrieved. Psychologists for the most part have been interested in twins in order to separate environmentally influenced processes from those influenced by heredity, as people attempted to do in the study just described. Free block building gives the child an appealing goal to work toward, but it does not tell the child how to achieve it. The child has to find his own way by selecting those building blocks and procedures suited for the task.

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