David I. Anderson
Contributor
Contributor to SAGE Publications's Encyclopedia of Human Development (2005) whose work for that encyclopedia formed the basis of his contributions to Britannica.
Primary Contributions (1)
Crawling, a pattern of prone locomotion in which the abdomen is in contact with the surface of support. The onset of crawling is a major milestone in infant motor development that also heralds a dramatic and pervasive set of changes in psychological functioning. Crawling represents the culmination…
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