New research from Northwestern University shows that infants as young as two months understand how objects around them work.
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METHODOLOGY: Researchers led by Northwestern University psychology professor Susan J. Hespos reviewed the scientific literature on infants to determine if, like adults, they can predict the behavior of materials that they interact with. One of the surveyed studies, for example, checked if babies could distinguish between objects that can be held or thrown and substances like water that can only flow or be poured.
RESULTS: By five months of age, infants expect non-cohesive substances like water and sand to pour. Even more impressive, by two months -- the earliest age at which testing can be done -- they understand that unsupported objects will fall and that hidden objects do not cease to exist.
CONCLUSION: Babies may be born with knowledge of how things in their environment operate.