We acquire concepts such as "atom," "force," "integer," and "democracy" long after we are born; these concepts are not part of the initial cognitive state of human beings. Other concepts like "object," "cause," or "agent" may be present early in infancy--if not innately. Processes of change occur throughout our conceptual development, which prompts two key questions: Which human concepts constitute innate, core knowledge? How do humans acquire new concepts, and how do these concepts change in development?

Core Knowledge and Conceptual Change provides a unique theoretical and...