Initially the young brain contains more components and connections than it will in adulthood, and the inputs it receives shape the elimination of this surplus. This provides a way in which individuals can develop in similar ways even if the plan of development is not encoded specifically in the human genome. Different areas of the brain develop at different times, and this is related to the development of their behavioral functions. The infant plays an active role in her own brain development by selectively attending to stimuli, such as faces and speech, that are important for subsequent development.
See also: LANGUAGE DEVELOPMENT
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