[Source: The New York Times]

We are accustomed to thinking about the importance of what even very young babies see and hear, but “touch is the first sensory system to develop in the baby’s brain prenatally,” and is quite well developed by the time the baby is born, said Andrew Meltzoff, the co-director of the Institute for Learning and Brain Sciences at the University of Washington.

Dr. Meltzoff was the first author on a study published in late June in the journal Developmental Science, which looked at how 60-day-old infants’ brains responded when different parts of the body were gently tapped.

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